Automated Malware Analysis IOC Report for

Files

File Path

Type

Category

Malicious

CuBYV0mfw8.exe

PE32+ executable (GUI) x86-64, for MS Windows

initial sample

Details

Filetype:	PE32+ executable (GUI) x86-64, for MS Windows
Entropy:	4.8758790629705135
Filename:	CuBYV0mfw8.exe
Filesize:	11264
MD5:	24fcec34782973a633ac38da243eca91
SHA1:	c33112fd1fae373668efbf12b630f76af4743123
SHA256:	a38da919a6f75fd511461159accdfdaf29b6fb81a6ecd41ea5d8fc447a106254
SHA512:	7519d27b215490da9d6be2ecc7b33e4d729a4e59bd6be9d9086431d31b57c0ed417e88de699bf2c40328d2e5b0e0318580cef6acded620ba0b6cdb9b1a35f386
SSDEEP:	192:XWK7QLTIB9nCyLeOJyuCNtlvYuC53Q5tf/rUBj:V7QLTIB8gxJbQnK3t
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$..........S....................I.~.....I.z.....I.{.....I.\|.....%.~.......~.......w...............}.....Rich...........................

Signature Hits	Behavior Group	Mitre Attack
Multi AV Scanner detection for submitted file	AV Detection
Machine Learning detection for sample	AV Detection
Checks if the current process is being debugged	Anti Debugging	Virtualization/Sandbox Evasion
Contains functionality to check if a debugger is running (IsDebuggerPresent)	Anti Debugging
Detected potential crypto function	System Summary	Security Software Discovery Archive Collected Data Encrypted Channel
One or more processes crash	System Summary
Contains functionality to download additional files from the internet	Networking	Security Software Discovery
Contains functionality to query local / system time	Language, Device and Operating System Detection	System Time Discovery System Information Discovery
Contains functionality to register its own exception handler	Anti Debugging	Security Software Discovery
PE file has an executable .text section and no other executable section	System Summary
Reads software policies	System Summary
Sample is known by Antivirus	System Summary
Tries to load missing DLLs	System Summary	DLL Side-Loading
URLs found in memory or binary data	Networking	Security Software Discovery
Uses an in-process (OLE) Automation server	System Summary
PE file contains a valid data directory to section mapping	System Summary
PE file contains a debug data directory	System Summary
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary
PE file contains a mix of data directories often seen in goodware	System Summary
PE file has a high image base, often used for DLLs	System Summary

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_CuBYV0mfw8.exe_70db625d245d7948588ef488edce5985f7bd376_dcfdfb87_d7767550-a740-4fe2-a2f8-a0c3d65d08fd\Report.wer

Unicode text, UTF-16, little-endian text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_CuBYV0mfw8.exe_70db625d245d7948588ef488edce5985f7bd376_dcfdfb87_d7767550-a740-4fe2-a2f8-a0c3d65d08fd\Report.wer
Category:	dropped
Dump:	Report.wer.5.dr
ID:	dr_3
Target ID:	5
Process:	C:\Windows\System32\WerFault.exe
Type:	Unicode text, UTF-16, little-endian text, with CRLF line terminators
Entropy:	0.8835425461468691
Encrypted:	false
Ssdeep:	192:4iP4ByiCBc0sVhCeM5jo5VzuiFgZ24lO8gf:jiCBXsVhCDjkzuiFgY4lO8Q
Size:	65536
Whitelisted:	false
Reputation:	low

Signature Hits	Behavior Group	Mitre Attack
Multi AV Scanner detection for submitted file	AV Detection
Machine Learning detection for sample	AV Detection
PE file has an executable .text section and no other executable section	System Summary
Sample is known by Antivirus	System Summary
PE file contains a valid data directory to section mapping	System Summary
PE file contains a debug data directory	System Summary
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary
PE file contains a mix of data directories often seen in goodware	System Summary
PE file has a high image base, often used for DLLs	System Summary

C:\ProgramData\Microsoft\Windows\WER\Temp\WERAF08.tmp.dmp

Mini DuMP crash report, 14 streams, Fri Aug 30 10:43:38 2024, 0x1205a4 type

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERAF08.tmp.dmp
Category:	dropped
Dump:	WERAF08.tmp.dmp.5.dr
ID:	dr_0
Target ID:	5
Process:	C:\Windows\System32\WerFault.exe
Type:	Mini DuMP crash report, 14 streams, Fri Aug 30 10:43:38 2024, 0x1205a4 type
Entropy:	1.2994632603863867
Encrypted:	false
Ssdeep:	384:8Gzb6IzcoKdd8aabmp1rIZ9bBFgd+NVwbLk6fi2WZa/D:8Gzb9XKUaMv1j1E
Size:	153388
Whitelisted:	false
Reputation:	low

C:\ProgramData\Microsoft\Windows\WER\Temp\WERB003.tmp.WERInternalMetadata.xml

XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERB003.tmp.WERInternalMetadata.xml
Category:	dropped
Dump:	WERB003.tmp.WERInternalMetadata.xml.5.dr
ID:	dr_1
Target ID:	5
Process:	C:\Windows\System32\WerFault.exe
Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Entropy:	3.702667917822121
Encrypted:	false
Ssdeep:	192:R6l7wVeJiOsIY6YcDYsxeQgmfTyprt89bos9fq4m:R6lXJz+6Y/sxeQgmfTNoGfU
Size:	8726
Whitelisted:	false
Reputation:	low

C:\ProgramData\Microsoft\Windows\WER\Temp\WERB033.tmp.xml

XML 1.0 document, ASCII text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERB033.tmp.xml
Category:	dropped
Dump:	WERB033.tmp.xml.5.dr
ID:	dr_2
Target ID:	5
Process:	C:\Windows\System32\WerFault.exe
Type:	XML 1.0 document, ASCII text, with CRLF line terminators
Entropy:	4.465802674485702
Encrypted:	false
Ssdeep:	48:cvIwWl8zsmJg771I9CFWpW8VYYu/Ym8M4JiwDVj6FuWyq85ujis3rPdit5Etyd:uIjf8I7107VEiJXI/blI5yyd
Size:	4637
Whitelisted:	false
Reputation:	low

C:\Windows\appcompat\Programs\Amcache.hve

MS Windows registry file, NT/2000 or above

dropped

Details

File:	C:\Windows\appcompat\Programs\Amcache.hve
Category:	dropped
Dump:	Amcache.hve.5.dr
ID:	dr_4
Target ID:	5
Process:	C:\Windows\System32\WerFault.exe
Type:	MS Windows registry file, NT/2000 or above
Entropy:	4.393904421036375
Encrypted:	false
Ssdeep:	6144:Ql4fiJoH0ncNXiUjt10q0G/gaocYGBoaUMMhA2NX4WABlBuNAHOBSqa:o4vF0MYQUMM6VFYSHU
Size:	1835008
Whitelisted:	false
Reputation:	low

Processes

Path

Cmdline

Malicious

C:\Users\user\Desktop\CuBYV0mfw8.exe

"C:\Users\user\Desktop\CuBYV0mfw8.exe"

Details

Is windows:	false
Is dropped:	false
PID:	2284
Target ID:	0
Parent PID:	3504
Name:	CuBYV0mfw8.exe
Path:	C:\Users\user\Desktop\CuBYV0mfw8.exe
Commandline:	"C:\Users\user\Desktop\CuBYV0mfw8.exe"
Size:	11264
MD5:	24FCEC34782973A633AC38DA243ECA91
Time:	06:43:35
Date:	30/08/2024
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0x7ff6670b0000
Modulesize:	49152
Wow64:	false

Signature Hits	Behavior Group	Mitre Attack
Multi AV Scanner detection for submitted file	AV Detection
Machine Learning detection for sample	AV Detection
Sigma detected: Communication To Uncommon Desusertion Ports	System Summary
PE file has an executable .text section and no other executable section	System Summary
Sample is known by Antivirus	System Summary
Spawns processes	System Summary	Process Injection
PE file contains a valid data directory to section mapping	System Summary
Binary contains paths to debug symbols	Compliance, System Summary
PE file contains a debug data directory	System Summary
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary
PE file contains a mix of data directories often seen in goodware	System Summary
PE file has a high image base, often used for DLLs	System Summary

C:\Windows\System32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2284 -s 1060

Details

Is windows:	true
Is dropped:	false
PID:	4380
Target ID:	5
Parent PID:	2284
Name:	WerFault.exe
Path:	C:\Windows\System32\WerFault.exe
Commandline:	C:\Windows\system32\WerFault.exe -u -p 2284 -s 1060
Size:	570736
MD5:	FD27D9F6D02763BDE32511B5DF7FF7A0
Time:	06:43:38
Date:	30/08/2024
Reason:	newprocess
Reputation:	high
Is admin:	true
Is elevated:	true
Modulebase:	0x7ff640e00000
Modulesize:	581632
Wow64:	false

Signature Hits	Behavior Group	Mitre Attack
One or more processes crash	System Summary
Spawns processes	System Summary	Process Injection

URLs

Name

Malicious

http://120.46.149.112:8888/safekey

120.46.149.112

Details

Name:	http://120.46.149.112:8888/safekey
IP:	120.46.149.112
TargetID:	0
From Memory:	false
Current Path:	C:\Users\user\Desktop\CuBYV0mfw8.exe
Source:	network

Signature Hits	Behavior Group	Mitre Attack
Detected TCP or UDP traffic on non-standard ports	Networking	Non-Standard Port
Sigma detected: Communication To Uncommon Desusertion Ports	System Summary
Connects to IPs without corresponding DNS lookups	Networking
Downloads files from webservers via HTTP	Networking	Application Layer Protocol Non-Application Layer Protocol Ingress Tool Transfer
URLs found in memory or binary data	Networking

http://120.46.149.112/6.149.112:8888/safekeyj

unknown

http://upx.sf.net

unknown

http://120.46.149.112/

unknown

http://120.46.149.112/uf

unknown

Domains

Name

Malicious

56.126.166.20.in-addr.arpa

unknown

IPs

Domain

Country

Malicious

120.46.149.112

unknown

China

Details

IP:	120.46.149.112
TargetID:	0
Current Path:	C:\Users\user\Desktop\CuBYV0mfw8.exe
Country:	China
Countrycode:	CHN
ASN number:	4847
ASN name:	CNIX-APChinaNetworksInter-ExchangeCN
Private:	false

Signature Hits	Behavior Group	Mitre Attack
Detected TCP or UDP traffic on non-standard ports	Networking	Non-Standard Port
Sigma detected: Communication To Uncommon Desusertion Ports	System Summary
Connects to IPs without corresponding DNS lookups	Networking
Downloads files from webservers via HTTP	Networking	Application Layer Protocol Non-Application Layer Protocol Ingress Tool Transfer
URLs found in memory or binary data	Networking