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| File name: | revil.dll |
| Full analysis: | https://app.any.run/tasks/08d71735-9fb3-4753-8c9d-b3c6e9b6fd66 |
| 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: | December 06, 2019, 19:09:11 |
| 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: | 87264780822D45C8F20B6D45961F3FF1 |
| SHA1: | A33170CF5560696ED5BC9B2E1298E0E3E374D67A |
| SHA256: | 7091141CDF66D411DB46F984EF98E913A6A06FEDD0CE8616A74AEE934665570C |
| SSDEEP: | 3072:gdh/MHQzMozq4ndm8jX5IXzs+M9VQHDOcAAYufEi9K:gdh/EGMgpdmwIXo+M9VQHDFxYubK |
MALICIOUS
Loads dropped or rewritten executable
- rundll32.exe (PID: 3384)
- explorer.exe (PID: 352)
- svchost.exe (PID: 864)
- SearchProtocolHost.exe (PID: 3464)
- consent.exe (PID: 2136)
Sodinokibi ransom note found
- rundll32.exe (PID: 3384)
Renames files like Ransomware
- rundll32.exe (PID: 3384)
Changes settings of System certificates
- rundll32.exe (PID: 3384)
SUSPICIOUS
Uses RUNDLL32.EXE to load library
- rundll32.exe (PID: 2172)
- explorer.exe (PID: 352)
Executed via COM
- unsecapp.exe (PID: 4036)
Application launched itself
- rundll32.exe (PID: 2172)
Executes PowerShell scripts
- rundll32.exe (PID: 3384)
Creates files in the program directory
- rundll32.exe (PID: 3384)
Creates files like Ransomware instruction
- rundll32.exe (PID: 3384)
Creates files in the user directory
- powershell.exe (PID: 2396)
- explorer.exe (PID: 352)
Executed as Windows Service
- vssvc.exe (PID: 1400)
Reads Internet Cache Settings
- explorer.exe (PID: 352)
Adds / modifies Windows certificates
- rundll32.exe (PID: 3384)
Executable content was dropped or overwritten
- explorer.exe (PID: 352)
INFO
Loads main object executable
- rundll32.exe (PID: 2172)
Dropped object may contain TOR URL's
- rundll32.exe (PID: 3384)
Modifies the open verb of a shell class
- rundll32.exe (PID: 3172)
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: | 2019:09:10 18:04:29+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 44032 |
| InitializedDataSize: | 123904 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3bce |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Sep-2019 16:04:29 |
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: | 10-Sep-2019 16:04:29 |
| 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 | 0x0000AAE4 | 0x0000AC00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.55149 |
.rdata | 0x0000C000 | 0x00002B5C | 0x00002C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.89139 |
.data | 0x0000F000 | 0x0000E8F0 | 0x0000E600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.9952 |
.6ai0 | 0x0001E000 | 0x0000C800 | 0x0000C800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 5.0685 |
.reloc | 0x0002B000 | 0x000005E4 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.60761 |
Imports
KERNEL32.dll |
Total processes
53
Monitored processes
12
Malicious processes
6
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2172 | "C:\Windows\System32\rundll32.exe" "C:\Users\admin\Desktop\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) | ||||
| 3384 | "C:\Windows\System32\rundll32.exe" C:\Users\admin\Desktop\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) | ||||
| 2396 | 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) | ||||
| 4036 | 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) | ||||
| 1400 | 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) | ||||
| 352 | C:\Windows\Explorer.EXE | C:\Windows\explorer.exe | — | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3464 | "C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe2_ Global\UsGthrCtrlFltPipeMssGthrPipe2 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" | C:\Windows\System32\SearchProtocolHost.exe | — | SearchIndexer.exe |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft Windows Search Protocol Host Version: 7.00.7600.16385 (win7_rtm.090713-1255) | ||||
| 864 | C:\Windows\system32\svchost.exe -k netsvcs | C:\Windows\System32\svchost.exe | services.exe | |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2136 | consent.exe 864 270 01BF59F8 | C:\Windows\system32\consent.exe | — | svchost.exe |
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Consent UI for administrative applications Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3172 | "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\admin\Desktop\rockclub.rtf.40bksfy | 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) | ||||
Total events
5 075
Read events
4 792
Write events
0
Delete events
0
Modification events
Executable files
2
Suspicious files
168
Text files
5
Unknown types
11
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2396 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\A676ARG5OUGY0QFWRGK4.temp | — | |
MD5:— | SHA256:— | |||
| 3384 | rundll32.exe | C:\users\administrator\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\Recovery\345b46fe-a9f9-11e7-a83c-e8a4f72b1d33\boot.sdi | — | |
MD5:— | SHA256:— | |||
| 3384 | rundll32.exe | C:\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\program files\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\users\admin\links\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\recovery\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\users\admin\documents\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\users\public\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
| 3384 | rundll32.exe | C:\users\admin\40bksfy-readme.txt | binary | |
MD5:F036C4D3B027ECF8542807F928A489FC | SHA256:2059772E499AB3BBE221268EEDDF959BAA5B02503C7675D0470C1EDF09ACF5E9 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
10
DNS requests
7
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3384 | rundll32.exe | GET | 200 | 205.185.216.42:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 57.4 Kb | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3384 | rundll32.exe | 52.9.200.151:443 | drvoip.com | Amazon.com, Inc. | US | unknown |
3384 | rundll32.exe | 205.185.216.42:80 | www.download.windowsupdate.com | Highwinds Network Group, Inc. | US | whitelisted |
3384 | rundll32.exe | 188.165.129.145:443 | mariajosediazdemera.com | OVH SAS | ES | malicious |
3384 | rundll32.exe | 185.157.56.11:443 | anleggsregisteret.no | Agnitio AS | NO | suspicious |
3384 | rundll32.exe | 149.255.59.10:443 | alene.co | Awareness Software Limited | GB | suspicious |
3384 | rundll32.exe | 104.24.96.62:443 | tieronechic.com | Cloudflare Inc | US | shared |
3384 | rundll32.exe | 159.203.88.13:443 | iactechnologies.net | Digital Ocean, Inc. | US | suspicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
alene.co |
| malicious |
drvoip.com |
| suspicious |
anleggsregisteret.no |
| suspicious |
www.download.windowsupdate.com |
| whitelisted |
mariajosediazdemera.com |
| malicious |
tieronechic.com |
| malicious |
iactechnologies.net |
| suspicious |