Windows Analysis Report
HeOkukP.dll

Overview

General Information

Sample name: HeOkukP.dll
Analysis ID: 1502264
MD5: 57c5d2950f3b91f96c81ae32e1b01a44
SHA1: 53645e86895b877cfd5b8284dbcc8c0314337b8c
SHA256: d11a6b623af75e54374bea05172b2193f93e2a8aa479ed13a7b1d19dd3738245
Tags: dll
Infos:

Detection

Score: 88
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
AI detected suspicious sample
Machine Learning detection for sample
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to query locales information (e.g. system language)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Found evasive API chain (may stop execution after checking a module file name)
Found large amount of non-executed APIs
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
Sample execution stops while process was sleeping (likely an evasion)
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: HeOkukP.dll Avira: detected
Antivirus detection for URL or domain
Source: http://www.rapidfilestorage.com/clrls/cl_rls.jsonB Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.jsonLz Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.json) Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.json; Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.jsond Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.json Avira URL Cloud: Label: malware
Source: http://www.rapidfilestorage.com/clrls/cl_rls.jsonu Avira URL Cloud: Label: malware
Multi AV Scanner detection for domain / URL
Source: env-3936544.jcloud.kz Virustotal: Detection: 5% Perma Link
Multi AV Scanner detection for submitted file
Source: HeOkukP.dll Virustotal: Detection: 40% Perma Link
Source: HeOkukP.dll ReversingLabs: Detection: 31%
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 99.8% probability
Machine Learning detection for sample
Source: HeOkukP.dll Joe Sandbox ML: detected
Uses 32bit PE files
Source: HeOkukP.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL

Networking
barindex
System process connects to network (likely due to code injection or exploit)
Source: C:\Windows\SysWOW64\rundll32.exe Network Connect: 185.22.66.16 80 Jump to behavior
HTTP GET or POST without a user agent
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 185.22.66.16 185.22.66.16
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: PSKZ PSKZ
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
Source: global traffic HTTP traffic detected: GET /clrls/cl_rls.json HTTP/1.1Host: www.rapidfilestorage.comConnection: Keep-AliveCache-Control: no-cache
Source: global traffic DNS traffic detected: DNS query: www.rapidfilestorage.com
Source: rundll32.exe, 00000009.00000003.1368971478.000000000339A000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.json
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B3E000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1335749105.0000000002B3C000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000002.1336998419.0000000002B3E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.json)
Source: rundll32.exe, 00000009.00000002.1369354017.0000000003340000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1369059378.000000000333A000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368849550.0000000003333000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.json;
Source: rundll32.exe, 00000007.00000003.1336450668.00000000028E9000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1336974130.00000000028EF000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.00000000028E2000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.jsonB
Source: rundll32.exe, 00000009.00000003.1368849550.0000000003394000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1369354017.000000000339C000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368526440.000000000339A000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368971478.000000000339A000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.jsonLz
Source: rundll32.exe, 00000005.00000003.1336500957.0000000002AC2000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000002.1336963668.0000000002AC3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.jsond
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B3E000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1335749105.0000000002B3C000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000002.1336998419.0000000002B3E000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://www.rapidfilestorage.com/clrls/cl_rls.jsonu
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336201784.0000000002B75000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336352369.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1337153187.000000000297D000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336364192.0000000002971000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1336974130.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336389193.0000000002978000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336450668.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368930066.00000000033D6000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368971478.00000000033B3000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1369354017.00000000033B3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: https://aus5.mozilla.org/update/6/%PRODUCT%/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336201784.0000000002B75000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336352369.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1337153187.000000000297D000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336364192.0000000002971000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1336974130.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336389193.0000000002978000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336450668.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368930066.00000000033D6000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368971478.00000000033B3000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1369354017.00000000033B3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: https://crash-reports.mozilla.com/submit?id=
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336201784.0000000002B75000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336352369.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1337153187.000000000297D000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336364192.0000000002971000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1336974130.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336389193.0000000002978000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336450668.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368930066.00000000033D6000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000003.1368971478.00000000033B3000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1369354017.00000000033B3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: https://hg.mozilla.org/releases/mozilla-release
Detected potential crypto function
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C233B0 5_2_04C233B0
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 7_2_04BD33B0 7_2_04BD33B0
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 9_2_056533B0 9_2_056533B0
Uses 32bit PE files
Source: HeOkukP.dll Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE, DLL
Source: classification engine Classification label: mal88.evad.winDLL@10/0@1/1
Source: C:\Windows\System32\conhost.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7724:120:WilError_03
Source: C:\Windows\SysWOW64\rundll32.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\2_PhpuzIakkdPWqpI
Source: HeOkukP.dll Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Windows\SysWOW64\rundll32.exe File read: C:\Program Files\Mozilla Firefox\application.ini Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\HeOkukP.dll,#1
Source: HeOkukP.dll Virustotal: Detection: 40%
Source: HeOkukP.dll ReversingLabs: Detection: 31%
Source: unknown Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\HeOkukP.dll"
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\HeOkukP.dll,#1
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\HeOkukP.dll,#1 Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1 Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1 Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\System32\loaddll32.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0358b920-0ac7-461f-98f4-58e32cd89148}\InProcServer32 Jump to behavior
Source: HeOkukP.dll Static file information: File size 6726144 > 1048576
Source: HeOkukP.dll Static PE information: Raw size of .data is bigger than: 0x100000 < 0x5ec800
Uses code obfuscation techniques (call, push, ret)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C364F0 push eax; ret 5_2_04C3650E
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C23395 push ecx; ret 5_2_04C233A8
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 7_2_04BD3395 push ecx; ret 7_2_04BD33A8
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 7_2_04BE64F0 push eax; ret 7_2_04BE650E
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 9_2_056664F0 push eax; ret 9_2_0566650E
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 9_2_05653395 push ecx; ret 9_2_056533A8
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Found evasive API chain (may stop execution after checking a module file name)
Source: C:\Windows\SysWOW64\rundll32.exe Evasive API call chain: GetModuleFileName,DecisionNodes,ExitProcess
Found large amount of non-executed APIs
Source: C:\Windows\SysWOW64\rundll32.exe API coverage: 4.4 %
Source: C:\Windows\SysWOW64\rundll32.exe API coverage: 1.9 %
Source: C:\Windows\SysWOW64\rundll32.exe API coverage: 3.3 %
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\System32\conhost.exe Last function: Thread delayed
Source: C:\Windows\System32\loaddll32.exe Thread delayed: delay time: 120000 Jump to behavior
Source: rundll32.exe, 00000007.00000003.1335961205.0000000002963000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1337105449.0000000002968000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336429087.0000000002967000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAWX
Source: rundll32.exe, 00000005.00000003.1336028674.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1335749105.0000000002B53000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336312907.0000000002B57000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000002.1337134914.0000000002B58000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1335961205.0000000002963000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002962000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1336974130.0000000002935000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336229595.0000000002935000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000002.1337105449.0000000002968000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000007.00000003.1336429087.0000000002967000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000009.00000002.1369354017.0000000003340000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW
Source: rundll32.exe, 00000005.00000003.1336352369.0000000002ADA000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000002.1336998419.0000000002AE0000.00000004.00000020.00020000.00000000.sdmp, rundll32.exe, 00000005.00000003.1336028674.0000000002AD3000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: Hyper-V RAW(
Source: C:\Windows\SysWOW64\rundll32.exe API call chain: ExitProcess graph end node
Source: C:\Windows\SysWOW64\rundll32.exe API call chain: ExitProcess graph end node
Source: C:\Windows\SysWOW64\rundll32.exe API call chain: ExitProcess graph end node
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C2F0EF EncodePointer,EncodePointer,___crtIsPackagedApp,LoadLibraryExW,GetLastError,LoadLibraryExW,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,IsDebuggerPresent,OutputDebugStringW,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer, 5_2_04C2F0EF
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C2F0EF EncodePointer,EncodePointer,___crtIsPackagedApp,LoadLibraryExW,GetLastError,LoadLibraryExW,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,GetProcAddress,EncodePointer,IsDebuggerPresent,OutputDebugStringW,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer,DecodePointer, 5_2_04C2F0EF
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 5_2_04C211A4 SetUnhandledExceptionFilter,UnhandledExceptionFilter, 5_2_04C211A4
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 7_2_04BD11A4 SetUnhandledExceptionFilter,UnhandledExceptionFilter, 7_2_04BD11A4
Source: C:\Windows\SysWOW64\rundll32.exe Code function: 9_2_056511A4 SetUnhandledExceptionFilter,UnhandledExceptionFilter, 9_2_056511A4

HIPS / PFW / Operating System Protection Evasion
barindex
System process connects to network (likely due to code injection or exploit)
Source: C:\Windows\SysWOW64\rundll32.exe Network Connect: 185.22.66.16 80 Jump to behavior
Creates a process in suspended mode (likely to inject code)
Source: C:\Windows\SysWOW64\cmd.exe Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\HeOkukP.dll",#1 Jump to behavior
Contains functionality to query locales information (e.g. system language)
Source: C:\Windows\SysWOW64\rundll32.exe Code function: _LocaleUpdate::_LocaleUpdate,__crtGetLocaleInfoA_stat, 5_2_04C2E1C6
Source: C:\Windows\SysWOW64\rundll32.exe Code function: __IsNonwritableInCurrentImage,___crtGetLocaleInfoA,GetLastError,___crtGetLocaleInfoA,__calloc_crt,___crtGetLocaleInfoA,__calloc_crt,_free,_free,__calloc_crt,_free,__invoke_watson, 5_2_04C233B0
Source: C:\Windows\SysWOW64\rundll32.exe Code function: GetLocaleInfoW, 5_2_04C22C29
Source: C:\Windows\SysWOW64\rundll32.exe Code function: __IsNonwritableInCurrentImage,___crtGetLocaleInfoA,GetLastError,___crtGetLocaleInfoA,__calloc_crt,___crtGetLocaleInfoA,__calloc_crt,_free,_free,__calloc_crt,_free,__invoke_watson, 7_2_04BD33B0
Source: C:\Windows\SysWOW64\rundll32.exe Code function: _LocaleUpdate::_LocaleUpdate,__crtGetLocaleInfoA_stat, 7_2_04BDE1C6
Source: C:\Windows\SysWOW64\rundll32.exe Code function: GetLocaleInfoW, 7_2_04BD2C29
Source: C:\Windows\SysWOW64\rundll32.exe Code function: GetLocaleInfoW, 9_2_05652C29
Source: C:\Windows\SysWOW64\rundll32.exe Code function: __crtGetLocaleInfoA_stat, 9_2_0565E1C6
Source: C:\Windows\SysWOW64\rundll32.exe Code function: __IsNonwritableInCurrentImage,___crtGetLocaleInfoA,GetLastError,___crtGetLocaleInfoA,__calloc_crt,___crtGetLocaleInfoA,__calloc_crt,__calloc_crt,__invoke_watson, 9_2_056533B0
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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1502264 Sample: HeOkukP.dll Startdate: 31/08/2024 Architecture: WINDOWS Score: 88 22 env-3936544.jcloud.kz 2->22 24 www.rapidfilestorage.com 2->24 28 Multi AV Scanner detection for domain / URL 2->28 30 Antivirus detection for URL or domain 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 3 other signatures 2->34 8 loaddll32.exe 1 2->8         started        signatures3 process4 process5 10 rundll32.exe 12 8->10         started        13 rundll32.exe 12 8->13         started        16 cmd.exe 1 8->16         started        18 conhost.exe 8->18         started        dnsIp6 36 System process connects to network (likely due to code injection or exploit) 10->36 26 env-3936544.jcloud.kz 185.22.66.16, 49709, 49710, 49711 PSKZ Kazakhstan 13->26 20 rundll32.exe 12 16->20         started        signatures7 process8
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
185.22.66.16
 env-3936544.jcloud.kz Kazakhstan
48716 PSKZ true

Contacted Domains

Name IP Active
env-3936544.jcloud.kz 185.22.66.16 true
www.rapidfilestorage.com unknown unknown

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://www.rapidfilestorage.com/clrls/cl_rls.json true
  • 2%, Virustotal, Browse
  • Avira URL Cloud: malware
 unknown