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Windows Analysis Report
Sykom_CopySykom_Copy

Overview

General Information

Sample name:	Sykom_CopySykom_Copy
Analysis ID:	1568228
MD5:	d2a80125d357e528e25483694ccaa344
SHA1:	6b20ab3c42010daa02b5cb8fe7d1a4a1827e044f
SHA256:	43ff8805b23d0aafeeddbcadaf0021184991c72a24a430eca928b50455722d52
Infos:

Detection

PureLog Stealer

Score:	52
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Yara detected PureLog Stealer

.NET source code contains method to dynamically call methods (often used by packers)

Allocates memory with a write watch (potentially for evading sandboxes)

Checks if the current process is being debugged

One or more processes crash

Queries the volume information (name, serial number etc) of a device

Uses 32bit PE files

Classification

Process Tree

System is w10x64_ra

Sykom_CopySykom_Copy.exe (PID: 7040 cmdline: "C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe" MD5: D2A80125D357E528E25483694CCAA344)

WerFault.exe (PID: 6212 cmdline: C:\Windows\system32\WerFault.exe -u -p 7040 -s 964 MD5: FD27D9F6D02763BDE32511B5DF7FF7A0)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
Sykom_CopySykom_Copy	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
00000001.00000000.1160358663.000001D575F72000.00000002.00000001.01000000.00000004.sdmp	JoeSecurity_PureLogStealer	Yara detected PureLog Stealer	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

Source: Sykom_CopySykom_Copy

Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, LARGE_ADDRESS_AWARE, 32BIT_MACHINE

Source: Sykom_CopySykom_Copy

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Process created: C:\Windows\System32\WerFault.exe C:\Windows\system32\WerFault.exe -u -p 7040 -s 964

Source: Sykom_CopySykom_Copy

Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, LARGE_ADDRESS_AWARE, 32BIT_MACHINE

Source: Sykom_CopySykom_Copy, AGBEFAFKIBGIOHAHKCEDONLPOHEBDJGCNECG.cs	Cryptographic APIs: 'CreateDecryptor'
Source: Sykom_CopySykom_Copy, AGBEFAFKIBGIOHAHKCEDONLPOHEBDJGCNECG.cs	Cryptographic APIs: 'CreateDecryptor'

Source: classification engine

Classification label: mal52.troj.evad.win@2/4@0/10

Source: C:\Windows\System32\WerFault.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess7040
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Mutant created: NULL

Source: C:\Windows\System32\WerFault.exe

File created: C:\ProgramData\Microsoft\Windows\WER\Temp\51368128-5e1d-44e6-b9ac-d2550b5fa958

Source: Sykom_CopySykom_Copy

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: Sykom_CopySykom_Copy

Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 49.83%

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

File read: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Source: unknown	Process created: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe "C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe"
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process created: C:\Windows\System32\WerFault.exe C:\Windows\system32\WerFault.exe -u -p 7040 -s 964

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: mscoree.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: apphelp.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: kernel.appcore.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: version.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: vcruntime140_clr0400.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: ucrtbase_clr0400.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: uxtheme.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: textshaping.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: textinputframework.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: coreuicomponents.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: coremessaging.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: ntmarta.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: coremessaging.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: wintypes.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: wintypes.dll
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Section loaded: wintypes.dll

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{0A29FF9E-7F9C-4437-8B11-F424491E3931}\InprocServer32

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

File opened: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorrc.dll

Source: Sykom_CopySykom_Copy

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: Sykom_CopySykom_Copy

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source: Sykom_CopySykom_Copy

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Data Obfuscation

.NET source code contains method to dynamically call methods (often used by packers)

Source: Sykom_CopySykom_Copy, AGBEFAFKIBGIOHAHKCEDONLPOHEBDJGCNECG.cs

.Net Code: Type.GetTypeFromHandle(ADLNHKEIOPCJFIJLKBMNDOLNGMCEMBODPPIO.HOLJABKAKECAJNEGOHJDPNGEPOBNPPBMCIGN(16777359)).GetMethod("GetDelegateForFunctionPointer", new Type[2]{Type.GetTypeFromHandle(ADLNHKEIOPCJFIJLKBMNDOLNGMCEMBODPPIO.HOLJABKAKECAJNEGOHJDPNGEPOBNPPBMCIGN(16777249)),Type.GetTypeFromHandle(ADLNHKEIOPCJFIJLKBMNDOLNGMCEMBODPPIO.HOLJABKAKECAJNEGOHJDPNGEPOBNPPBMCIGN(16777291))})

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Windows\System32\WerFault.exe	Process information set: NOOPENFILEERRORBOX

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Memory allocated: 1D5762B0000 memory reserve \| memory write watch
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Memory allocated: 1D577E10000 memory reserve \| memory write watch

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Process information queried: ProcessInformation

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process queried: DebugPort
Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe	Process queried: DebugPort

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Memory allocated: page read and write | page guard

Source: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe

Queries volume information: C:\Users\user\Downloads\BIUmXCsiTl\Sykom_CopySykom_Copy.exe VolumeInformation

Stealing of Sensitive Information

Yara detected PureLog Stealer

Source: Yara match	File source: Sykom_CopySykom_Copy, type: SAMPLE
Source: Yara match	File source: 00000001.00000000.1160358663.000001D575F72000.00000002.00000001.01000000.00000004.sdmp, type: MEMORY

Remote Access Functionality

Yara detected PureLog Stealer

Source: Yara match	File source: Sykom_CopySykom_Copy, type: SAMPLE
Source: Yara match	File source: 00000001.00000000.1160358663.000001D575F72000.00000002.00000001.01000000.00000004.sdmp, type: MEMORY

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	1 DLL Side-Loading	1 Process Injection	2 Virtualization/Sandbox Evasion	OS Credential Dumping	1 Security Software Discovery	Remote Services	1 Archive Collected Data	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Disable or Modify Tools	LSASS Memory	2 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 Software Packing	Security Account Manager	1 Process Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 Process Injection	NTDS	11 System Information Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction
Gather Victim Network Information	Server	Cloud Accounts	Launchd	Network Logon Script	Network Logon Script	1 Deobfuscate/Decode Files or Information	LSA Secrets	Internet Connection Discovery	SSH	Keylogging	Fallback Channels	Scheduled Transfer	Data Encrypted for Impact
Domain Properties	Botnet	Replication Through Removable Media	Scheduled Task	RC Scripts	RC Scripts	1 DLL Side-Loading	Cached Domain Credentials	Wi-Fi Discovery	VNC	GUI Input Capture	Multiband Communication	Data Transfer Size Limits	Service Stop

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
52.168.117.173	unknown	United States		8075	MICROSOFT-CORP-MSN-AS-BLOCKUS	false

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1568228
Start date and time:	2024-12-04 13:17:40 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowsinteractivecookbook.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	24
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	EGA enabled
Analysis Mode:	stream
Analysis stop reason:	Timeout
Sample name:	Sykom_CopySykom_Copy
Detection:	MAL
Classification:	mal52.troj.evad.win@2/4@0/10

Warnings

Exclude process from analysis (whitelisted): SIHClient.exe
Excluded IPs from analysis (whitelisted): 13.107.5.88
Excluded domains from analysis (whitelisted): slscr.update.microsoft.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: Sykom_CopySykom_Copy

Created / dropped Files

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_Sykom_CopySykom__f0a4fb4e27f3117d48a9634658d380d74f7db188_caa922c3_5278085b-3430-4bf6-a085-0eb0ddaa90bd\Report.wer

Download File

Process:	C:\Windows\System32\WerFault.exe
File Type:	Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	65536
Entropy (8bit):	1.0098507072222318
Encrypted:	false
SSDEEP:
MD5:	C5DD0D4E12FB053E6E0FD38CB4FCD385
SHA1:	0E0B783AF19A60815108E8FE10DA4A570B31B50F
SHA-256:	12F16255FAF6FF13CDB9572C4666E3718393E3C7F8FD8C7ED4975711F5F1DC39
SHA-512:	59EAD44D95566800375D511E24EC226C866518FCAB2F6C710AB9EB50BAA5BECF920CBED079857A87D7E687F50AB2E50DCF304878462023549AE79F18B081D288
Malicious:	false
Reputation:	unknown
Preview:	..V.e.r.s.i.o.n.=.1.....E.v.e.n.t.T.y.p.e.=.C.L.R.2.0.r.3.....E.v.e.n.t.T.i.m.e.=.1.3.3.7.7.7.8.8.3.0.5.5.0.9.9.3.1.4.....R.e.p.o.r.t.T.y.p.e.=.2.....C.o.n.s.e.n.t.=.1.....U.p.l.o.a.d.T.i.m.e.=.1.3.3.7.7.7.8.8.3.0.5.9.6.7.9.2.7.6.....R.e.p.o.r.t.S.t.a.t.u.s.=.5.2.4.3.8.4.....R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.5.2.7.8.0.8.5.b.-.3.4.3.0.-.4.b.f.6.-.a.0.8.5.-.0.e.b.0.d.d.a.a.9.0.b.d.....I.n.t.e.g.r.a.t.o.r.R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.f.e.3.5.a.f.1.d.-.6.d.3.1.-.4.4.1.b.-.a.8.e.9.-.8.d.f.9.8.0.e.9.0.7.4.4.....W.o.w.6.4.H.o.s.t.=.3.4.4.0.4.....N.s.A.p.p.N.a.m.e.=.S.y.k.o.m._.C.o.p.y.S.y.k.o.m._.C.o.p.y...e.x.e.....O.r.i.g.i.n.a.l.F.i.l.e.n.a.m.e.=.S.y.k.o.m...e.x.e.....A.p.p.S.e.s.s.i.o.n.G.u.i.d.=.0.0.0.0.1.b.8.0.-.0.0.0.1.-.0.0.1.7.-.5.5.1.c.-.a.1.9.c.4.6.4.6.d.b.0.1.....T.a.r.g.e.t.A.p.p.I.d.=.W.:.0.0.0.6.4.3.1.9.3.6.e.2.c.d.0.9.0.4.0.d.3.7.3.0.0.8.e.4.9.6.5.0.1.c.c.7.0.0.0.0.0.0.0.0.!.0.0.0.0.6.b.2.0.a.b.3.c.4.2.0.1.0.d.a.a.0.2.b.5.c.b.8.f.e.7.d.1.a.4.a.1.8.2.7.e.0.4.4.f.!.S.y.k.o.

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8C15.tmp.dmp

Download File

Process:	C:\Windows\System32\WerFault.exe
File Type:	Mini DuMP crash report, 16 streams, Wed Dec 4 12:18:25 2024, 0x1205a4 type
Category:	dropped
Size (bytes):	321623
Entropy (8bit):	3.0726678651040036
Encrypted:	false
SSDEEP:
MD5:	C940FC7CC52E32A27C5ED56FC716640B
SHA1:	9ADD0C7AF5462AC719D19C8C1C9010C70F069ADB
SHA-256:	FFFDB62FD5F753BAC124CAD4DFD84C68681AA84EB0AC088B337CB5C0ED7D9D37
SHA-512:	8D4B6E4F5632584AA79D554C6B4D49C7539570C59E87965DDDD6B989C12B525554E81F32170EF82C8E1F5D3F703AB05F0045EEF98E4F2F7B1E2047EDFBC4E600
Malicious:	false
Reputation:	unknown
Preview:	MDMP..a..... ........HPg............................4.......$............................a..........l.......8...........T...........0&..'.......................t!..............................................................................eJ......."......Lw......................T............HPg............................. ..............,...E.a.s.t.e.r.n. .S.t.a.n.d.a.r.d. .T.i.m.e...........................................E.a.s.t.e.r.n. .S.u.m.m.e.r. .T.i.m.e...............................................1.9.0.4.1...1...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6...........................................................................................................................................................................................................................................................................................................................................................................................................................

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8D10.tmp.WERInternalMetadata.xml

Download File

Process:	C:\Windows\System32\WerFault.exe
File Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	10072
Entropy (8bit):	3.7136901710052657
Encrypted:	false
SSDEEP:
MD5:	AE0F0FFAFBDE44E62DA601C0A5A8AC9A
SHA1:	62A1C8CE818DC743C51EA894530C2C2B0430F036
SHA-256:	410A444076E507C929F2CB9216D666B053DD66FADCDD3DED0C52B0C864FC80ED
SHA-512:	F6E81560A2C98DE1ED542354655668F16FF1B1ECA100DEF24C9D42025A2C857177077008593FECE7DCC29EBF84862B4791C156A9C7A876EE12813A2BD3DBAC8C
Malicious:	false
Reputation:	unknown
Preview:	..<.?.x.m.l. .v.e.r.s.i.o.n.=.".1...0.". .e.n.c.o.d.i.n.g.=.".U.T.F.-.1.6.".?.>.....<.W.E.R.R.e.p.o.r.t.M.e.t.a.d.a.t.a.>.......<.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.........<.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.1.0...0.<./.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.........<.B.u.i.l.d.>.1.9.0.4.5.<./.B.u.i.l.d.>.........<.P.r.o.d.u.c.t.>.(.0.x.3.0.).:. .W.i.n.d.o.w.s. .1.0. .P.r.o.<./.P.r.o.d.u.c.t.>.........<.E.d.i.t.i.o.n.>.P.r.o.f.e.s.s.i.o.n.a.l.<./.E.d.i.t.i.o.n.>.........<.B.u.i.l.d.S.t.r.i.n.g.>.1.9.0.4.1...2.0.0.6...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6.<./.B.u.i.l.d.S.t.r.i.n.g.>.........<.R.e.v.i.s.i.o.n.>.2.0.0.6.<./.R.e.v.i.s.i.o.n.>.........<.F.l.a.v.o.r.>.M.u.l.t.i.p.r.o.c.e.s.s.o.r. .F.r.e.e.<./.F.l.a.v.o.r.>.........<.A.r.c.h.i.t.e.c.t.u.r.e.>.X.6.4.<./.A.r.c.h.i.t.e.c.t.u.r.e.>.........<.L.C.I.D.>.2.0.5.7.<./.L.C.I.D.>.......<./.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.......<.P.r.o.c.e.s.s.I.n.f.o.r.m.a.t.i.o.n.>.........<.P.i.d.>.7.0.4.0.<./.P.i.

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8D4F.tmp.xml

Download File

Process:	C:\Windows\System32\WerFault.exe
File Type:	XML 1.0 document, ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	4882
Entropy (8bit):	4.521669585133942
Encrypted:	false
SSDEEP:
MD5:	6442689B6F6A968C710BC0FFCC4FE331
SHA1:	61C5C21A83C806573ABACD753F8FF1B8D05B4268
SHA-256:	91BF0490AEC9F79C8B37B0728A0F3687A48899B055E4C1A581A05E4D8214093C
SHA-512:	906FA56BB6F1DDE43D153DCAEFE2F56021CE3752956D2D78CA9EF1A31D5F35912D096E323B7F7E8F2ACB1408D4F5ECC9225592A2DF8899914A3C2E365F3F1FFD
Malicious:	false
Reputation:	unknown
Preview:	<?xml version="1.0" encoding="UTF-8" standalone="yes"?>..<req ver="2">.. <tlm>.. <src>.. <desc>.. <mach>.. <os>.. <arg nm="vermaj" val="10" />.. <arg nm="vermin" val="0" />.. <arg nm="verbld" val="19045" />.. <arg nm="vercsdbld" val="2006" />.. <arg nm="verqfe" val="2006" />.. <arg nm="csdbld" val="2006" />.. <arg nm="versp" val="0" />.. <arg nm="arch" val="9" />.. <arg nm="lcid" val="2057" />.. <arg nm="geoid" val="223" />.. <arg nm="sku" val="48" />.. <arg nm="domain" val="0" />.. <arg nm="prodsuite" val="256" />.. <arg nm="ntprodtype" val="1" />.. <arg nm="platid" val="2" />.. <arg nm="tmsi" val="616521" />.. <arg nm="osinsty" val="2" />.. <arg nm="iever" val="11.789.19041.0-11.0.1000" />.. <arg nm="portos" val="0" />.. <arg nm="ram" val="409

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	6.0549908684012905
TrID:	Win32 Executable (generic) Net Framework (10011505/4) 49.83% Win32 Executable (generic) a (10002005/4) 49.78% Generic CIL Executable (.NET, Mono, etc.) (73296/58) 0.36% Generic Win/DOS Executable (2004/3) 0.01% DOS Executable Generic (2002/1) 0.01%
File name:	Sykom_CopySykom_Copy
File size:	110'592 bytes
MD5:	d2a80125d357e528e25483694ccaa344
SHA1:	6b20ab3c42010daa02b5cb8fe7d1a4a1827e044f
SHA256:	43ff8805b23d0aafeeddbcadaf0021184991c72a24a430eca928b50455722d52
SHA512:	ac22d86408f8f0bdfa5771ab61d14031b7c1cfd38fceeaeda0467950baf943d0f84745b6454bb0302ca5dec570f7733e04609ca40333ddea0ad0fc8ace04ff39
SSDEEP:	3072:NeE7w3xxd5pYvgQ+U5+15xESRHhUXJLF9pLq:NtE3xxd5pYvgQ+U5+1Hkx9
TLSH:	96B3F5027BCBB961DABA7673046153854271EB2A6D17DB0B6CC8225B7E623CD1FC36C1
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...T..a..............0.................. ........@.. ....................................`................................

Static PE Info

General

Entrypoint:	0x419e0e
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, LARGE_ADDRESS_AWARE, 32BIT_MACHINE
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x61828C54 [Wed Nov 3 13:19:16 2021 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	f34d5f2d4577ed6d9ceec516c1f5a744

Entrypoint Preview

Instruction
jmp dword ptr [00402000h]
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x19dc0	0x4b	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x1a000	0x2a50	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x1e000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x19d77	0x1c	.text
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x2000	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	0x48	.text

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0x17e14	0x18000	f70b4abefe3d6efb4e333f944254c70a	False	0.4785868326822917	data	6.143888679083028	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x1a000	0x2a50	0x2c00	b8a63c596e604d9ffdd69be1df7a67c4	False	0.12198153409090909	data	3.5014513173260338	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x1e000	0xc	0x200	4545e7f2ce027f68a5c569a1adefe072	False	0.044921875	data	0.10191042566270775	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	ZLIB Complexity
RT_ICON	0x1a130	0x2318	Device independent bitmap graphic, 50 x 86 x 32, image size 0	0.06578361531611754
RT_GROUP_ICON	0x1c448	0x14	data	1.1
RT_VERSION	0x1c45c	0x406	data	0.4
RT_MANIFEST	0x1c864	0x1ea	XML 1.0 document, Unicode text, UTF-8 (with BOM) text, with CRLF line terminators	0.5489795918367347

Imports

DLL	Import
mscoree.dll	_CorExeMain

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify and/or disable security tools to avoid possible detection of their malware/tools and activities. This may take many forms, such as killing security software processes or services, modifying / deleting Registry keys or configuration files so that tools do not operate properly, or other methods to interfere with security tools scanning or reporting information. Adversaries may also disable updates to prevent the latest security patches from reaching tools on victim systems.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, Driver: Driver Load, Process: Process Creation, Process: Process Termination, Sensor Health: Host Status, Service: Service Metadata, Windows Registry: Windows Registry Key Deletion, Windows Registry: Windows Registry Key Modification
Platforms:	Containers, IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	File: File Metadata
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use Obfuscated Files or Information to hide artifacts of an intrusion from analysis. They may require separate mechanisms to decode or deobfuscate that information depending on how they intend to use it. Methods for doing that include built-in functionality of malware or by using utilities present on the system.
Tactics:	Defense Evasion
Data Sources:	File: File Modification, Process: Process Creation, Script: Script Execution
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Command: Command Execution, File: File Creation, Process: Process Creation, Script: Script Execution
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report Sykom_CopySykom_Copy

Overview

General Information

Detection

Signatures

Classification

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

Compliance

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

General Information

Warnings

Created / dropped Files

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_Sykom_CopySykom__f0a4fb4e27f3117d48a9634658d380d74f7db188_caa922c3_5278085b-3430-4bf6-a085-0eb0ddaa90bd\Report.wer

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8C15.tmp.dmp

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8D10.tmp.WERInternalMetadata.xml

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8D4F.tmp.xml

Static File Info

General

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Windows Analysis Report
Sykom_CopySykom_Copy