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| File name: | revil.dll |
| Full analysis: | https://app.any.run/tasks/15393a70-1bde-413c-81d0-122ad73f2eb0 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | February 21, 2020, 16:34:28 |
| 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: | B979913C1157D8E0E1066AFBD296E3F3 |
| SHA1: | 1016B7581EA09468B93CF635DBE0FF760BCF1428 |
| SHA256: | C40DFD58E6DA0AADE75D09B6A659CF165F072BA89AEF2D60C10C153793535EE7 |
| SSDEEP: | 3072:JLFrb30BRtBZZg+i2ayyYOCWGPyLydrkxMT3QmMlRNv3WQ/YC:NJ0BXScFyfC3Hd4ygmyL3Hg |
MALICIOUS
Loads dropped or rewritten executable
- rundll32.exe (PID: 3112)
SUSPICIOUS
Executes PowerShell scripts
- rundll32.exe (PID: 3112)
Uses RUNDLL32.EXE to load library
- rundll32.exe (PID: 1756)
Application launched itself
- rundll32.exe (PID: 1756)
Executed via COM
- unsecapp.exe (PID: 2488)
Executed as Windows Service
- vssvc.exe (PID: 4092)
Creates files in the user directory
- powershell.exe (PID: 3452)
Creates files in the program directory
- rundll32.exe (PID: 3112)
INFO
Loads main object executable
- rundll32.exe (PID: 1756)
Manual execution by user
- taskmgr.exe (PID: 1520)
Dropped object may contain TOR URL's
- rundll32.exe (PID: 3112)
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: | 2020:02:11 21:03:38+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 96768 |
| InitializedDataSize: | 72704 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x10a04 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 11-Feb-2020 20:03:38 |
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: | 0x000000F8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 11-Feb-2020 20:03:38 |
| 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 | 0x00017974 | 0x00017A00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.6382 |
.rdata | 0x00019000 | 0x00002B74 | 0x00002C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.89912 |
.data | 0x0001C000 | 0x00001F90 | 0x00001E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.41442 |
.41hfa | 0x0001E000 | 0x0000C800 | 0x0000C800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.46917 |
.reloc | 0x0002B000 | 0x0000061C | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 5.68528 |
Imports
KERNEL32.dll |
Total processes
45
Monitored processes
6
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 1756 | "C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\revil.dll", DllMain | C:\Windows\System32\rundll32.exe | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3112 | "C:\Windows\System32\rundll32.exe" C:\Users\admin\AppData\Local\Temp\revil.dll, DllMain | C:\Windows\System32\rundll32.exe | rundll32.exe | |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3452 | powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA== | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | rundll32.exe |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2488 | 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) | ||||
| 4092 | 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) | ||||
| 1520 | "C:\Windows\system32\taskmgr.exe" /4 | C:\Windows\system32\taskmgr.exe | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Task Manager Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
319
Read events
252
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
21
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3452 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\M3GFEOQELOCCFIUDPWWM.temp | — | |
MD5:— | SHA256:— | |||
| 3112 | rundll32.exe | C:\autoexec.bat | — | |
MD5:— | SHA256:— | |||
| 3112 | rundll32.exe | C:\ProgramData\ntuser.pol | — | |
MD5:— | SHA256:— | |||
| 3112 | rundll32.exe | C:\recovery\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\$recycle.bin\s-1-5-21-1302019708-1500728564-335382590-1000\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\program files\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\programdata\oracle\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\$recycle.bin\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\users\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
| 3112 | rundll32.exe | C:\programdata\microsoft help\6xk4k-readme.txt | binary | |
MD5:7BDEDE1EF71329AD3964AD0BF2D0434A | SHA256:50A1ECE52BED152122396BEBDA8D150DE04F69AE02229432DD7DFD19238D8D05 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report