| File name: | stage3.dll |
| Full analysis: | https://app.any.run/tasks/c68425b7-5d5b-45da-acfc-c20b3f3cf578 |
| Verdict: | Malicious activity |
| Threats: | Sodinokibi, also called Revil, is dangerous ransomware-type malware. Among other tools, it uses advanced encryption techniques and can operate without connection to control servers. Sodinokibi is among the most complex Ransomware in the world. |
| Analysis date: | June 11, 2021, 22:06:03 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (DLL) (GUI) Intel 80386, for MS Windows |
| MD5: | 612F5B62182B5C3A8EB64ECAA2827462 |
| SHA1: | 9D2BFCBAF44F9E59BBB451DCE29E4C7AD6778808 |
| SHA256: | 7AC75D8D4390707428B148CF3CAD23D804930141FD8EA53CF1A7790F7D1C3C88 |
| SSDEEP: | 1536:OgzVnCcFqy0+A1raqG/33+92Z9i0C1b5rprOEGICS4Av3uZs38oP/GgmOpSFDrKD:OCY7F2sb5dHd3uW383rvDrKr |
MALICIOUS
Loads dropped or rewritten executable
- rundll32.exe (PID: 4024)
Sodinokibi ransom note found
- rundll32.exe (PID: 4024)
Renames files like Ransomware
- rundll32.exe (PID: 4024)
Writes file to Word startup folder
- rundll32.exe (PID: 4024)
Changes settings of System certificates
- rundll32.exe (PID: 4024)
Modifies files in Chrome extension folder
- rundll32.exe (PID: 4024)
Steals credentials from Web Browsers
- rundll32.exe (PID: 4024)
Actions looks like stealing of personal data
- rundll32.exe (PID: 4024)
SUSPICIOUS
Uses RUNDLL32.EXE to load library
- rundll32.exe (PID: 648)
Application launched itself
- rundll32.exe (PID: 648)
Executed via COM
- unsecapp.exe (PID: 2464)
Executed as Windows Service
- vssvc.exe (PID: 1528)
Creates files like Ransomware instruction
- rundll32.exe (PID: 4024)
Drops a file with a compile date too recent
- rundll32.exe (PID: 4024)
Reads the cookies of Google Chrome
- rundll32.exe (PID: 4024)
Reads the cookies of Mozilla Firefox
- rundll32.exe (PID: 4024)
Creates files in the program directory
- rundll32.exe (PID: 4024)
Adds / modifies Windows certificates
- rundll32.exe (PID: 4024)
Creates files in the user directory
- rundll32.exe (PID: 4024)
INFO
Loads main object executable
- rundll32.exe (PID: 648)
Reads settings of System Certificates
- rundll32.exe (PID: 4024)
Dropped object may contain TOR URL's
- rundll32.exe (PID: 4024)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .dll | | | Win32 Dynamic Link Library (generic) (43.5) |
| .exe | | | Win32 Executable (generic) (29.8) |
| .exe | | | Generic Win/DOS Executable (13.2) |
| .exe | | | DOS Executable Generic (13.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
| TimeStamp: | 2021:04:13 21:53:55+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 49152 |
| InitializedDataSize: | 75264 |
| UninitializedDataSize: | 0 |
| EntryPoint: | 0x457f |
| OSVersion: | 5.1 |
| ImageVersion: | 0 |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 13-Apr-2021 19:53:55 |
DOS Header
| Magic number: | MZ |
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 13-Apr-2021 19:53:55 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x0000BE94 | 0x0000C000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.53975 |
.rdata | 0x0000D000 | 0x00002F2E | 0x00003000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.72888 |
.data | 0x00010000 | 0x000024E0 | 0x00002000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.60369 |
.bios | 0x00013000 | 0x0000C800 | 0x0000C800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.47964 |
.reloc | 0x00020000 | 0x00000740 | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.39442 |
Imports
KERNEL32.dll |
OLEAUT32.dll |
USER32.dll |
Exports
Title | Ordinal | Address |
|---|---|---|
DllRegisterServer | 1 | 0x000044B7 |
Total processes
43
Monitored processes
4
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 648 | "C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\stage3.dll", DllRegisterServer | C:\Windows\System32\rundll32.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 4024 | "C:\Windows\System32\rundll32.exe" C:\Users\admin\AppData\Local\Temp\stage3.dll, DllRegisterServer | C:\Windows\System32\rundll32.exe | rundll32.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows host process (Rundll32) Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2464 | C:\Windows\system32\wbem\unsecapp.exe -Embedding | C:\Windows\system32\wbem\unsecapp.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Sink to receive asynchronous callbacks for WMI client application Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1528 | C:\Windows\system32\vssvc.exe | C:\Windows\system32\vssvc.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft® Volume Shadow Copy Service Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
425
Read events
397
Write events
28
Delete events
0
Modification events
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | znq |
Value: B17408F62A0A950E3119F81A3AB37031542F3530FFE2B096584F6BDF966D9462 | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | X7Rn |
Value: 34CA0E6E26AAFBE01BD82C574C84ECBA1B347898A37E5448894B45A44CA9CA6B | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | ezjIT |
Value: D19737BD6090825163F7408837DC66C4A3A4D72C28C7C27DFEED2BB9835F968931139EFC46A03596CB079DA78CCB63B0C3F50928900E79DD8EAAEE2168DC3582EDB4387DF4F986F5A9736626079A77EE0ECE61ED2F0073CD | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | FfSEAQ |
Value: 01EF6C44CA13226E0B72E5CBC2AE78E07910BD50FB9A54F58ADFAFABCC84BC174B9215C5426CFC730D78FD5DD283C30A12272E0F91C5BF2EF4BF3F9A826E54B377B97B1DD5C52821483841A6E0296C4AEC99F2D84C055123 | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | U8ngBWt |
Value: .r3s0v3lg | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | vMUQJe1x |
Value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| |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (648) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (4024) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | znq |
Value: B17408F62A0A950E3119F81A3AB37031542F3530FFE2B096584F6BDF966D9462 | |||
| (PID) Process: | (4024) rundll32.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\BlackLivesMatter |
| Operation: | write | Name: | X7Rn |
Value: 1A529104AE0AA31882A577003815651E455ED557C2C41DF052B00BEA709EC70A | |||
Executable files
0
Suspicious files
1 902
Text files
7
Unknown types
28
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4024 | rundll32.exe |