c09c691d40d8b935de4b60c92e1d4fc85f409fb546fd4a5e5b5483ae150fbf20

Analysis

max time kernel
101s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2025, 22:24

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General

Target

revil-fixed.exe
Size

126KB
MD5

329b8aaea517a511908683b56446db99
SHA1

9abe20a9c460a3e530cb96658541c6d25700a529
SHA256

c09c691d40d8b935de4b60c92e1d4fc85f409fb546fd4a5e5b5483ae150fbf20
SHA512

172d290abe8fef35e8bea43319dc68092c61389257c73e94fcde68f67f97022c1bbda1fe50cd35775bda6e2473af1bad0e5cdb2ff7060e8365bbbe4765a3b3fa
SSDEEP

1536:oxOUyl20w8bVZQ40iMSO1fY+iUyQs2r8t5p1ySotICS4A6QdZls8XzUXiWr4X5Fg:oMhQNDEtb3A2ZHjUyWr4X5FTDUA

Score

10^/10

defense_evasion discovery persistence privilege_escalation ransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\956w42-readme.txt

Ransom Note

---=== Welcome. Again. ===--- [-] Whats HapPen? [-] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension 956w42. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practice - time is much more valuable than money. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/FB777F1C95764FDB 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decoder.re/FB777F1C95764FDB Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: dq3nxfFR5Axnsp7qVHuA3Ij7dk/GczYNFF1wrwyqEpQ8sO5YQCyB69VChcNvIMzl JgNZVYDTfVehsPMMP4EwMClkXwBN+x9zlryuFvjPUWjHvzXrBfrv2bcNm28jatdh UubJelg36PcJofPsuFvOg69bxULPrWQfMTWkxjW9aljxr22dPdRIsIVntdNngdz7 eSZza9l6HMaCEEBnRmgpQUgPRkqbIcvluzMTy092MWTZDcCSNev3cK/Kzvns3hGP 0sp3iIyzqdChwfi7R+SXuC7T7EJ2CEJHxzkXyOPkFIIqzecWVD+ykCFfoVV7qre1 xEadW85iTmfiHgX73XmQdb+BRc3fu6pXBlvpsZ2iAfUiV4eS39KYktIAF9HAv4Pe n8GUUc/7SmCfNxxQgvH0hNbExo3sm7QMv+xDmXe83ArkjfyWzYjJv0yJSwiwU8Jd qsgqwInf2Ee7zBF7Cz4MFGMpqfBtduEY7QLB7EdCgCbo68qFtRG7C90NwypV34iH 59acLEE+9SmcOSctt/yc3zQxT0D4z6IXOGrTulPI6kOD/YtBjzdqrnOr2F/miPqy 5qWIZNAEQYZ5K5TIKCHfDiDCHX/vA5S3/LbLQFuRGiE0+MKSqMT2BM9f17Es/JjN yeOhNsih1fVUXyVAzh0w6NxowbUN2WdI0uKvG0+0otYcvmmH4PohemFYNLx+YV/Q fgkaPB5nT9l35xfA+BDAI5BZTNR62oBTZwEPM3No3pInZIt1Wh2drKVp91azoXv/ or5GEckx6uslUMLPXyKKcEwAykoCAlsq1B/7E8by0g0pyLfdcKHSlGNK3wg4jaKW Rtx6r/VB79Qu41yQDnmkgtVsIZLq53c/XAQTDLjckQCeiOyfV35ibxBoyHph+VFo rOV8CT6OYwmzJPKNCwOYPKOSpBF2lyLUlmcgojDUACUZdN8H4TSlLjN6ur7RZWnA wkldqumZKcUv/6ElolH15NPJCSy2cVdqy3rUCzc3SgZvat9eoKmcQcCXGKlxvBmp 9jQ+m1k7waFHOm41KWteBejrepefCbDIPp/WBM/5hytDw36u9hRd3Z4eqt4+KtpC L5SEJV9rcCcABLbukFuqdtdUb8DlorZ3qGZrfpOB/+h9m3gEkitAXZo1hk7z3Hup 1fOVCPoASl/KwUKQ3ynQcTbj+zcfup/Op6CGZIixoGA6XyklZO+YKJ3yKrlk/4K/ JAvryt1FaRp3+XfMLOEl2PURIc4QGuJzaDFD33TJb7eX8d8YUL0oNMd1iyNkAVfr OBxcjsXr8JBJ9QjzGKcRbUCSQIiA6Yt279YKGRWo+DLoJ1HC5GINyEjGMkPFmDsm +IsYCDP2jkPgO4oRLkAicOmqxB7f4qxV74FTqA== ----------------------------------------------------------------------------------------- !!! DANGER !!! DON'T try to change files by yourself, DON'T use any third party software for restoring your data or antivirus solutions - its may entail damage of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!

URLs

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/FB777F1C95764FDB

http://decoder.re/FB777F1C95764FDB

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1372	netsh.exe

Enumerates connected drives 3 TTPs 25 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\A:	revil-fixed.exe
File opened (read-only)	\??\H:	revil-fixed.exe
File opened (read-only)	\??\I:	revil-fixed.exe
File opened (read-only)	\??\Q:	revil-fixed.exe
File opened (read-only)	\??\T:	revil-fixed.exe
File opened (read-only)	\??\B:	revil-fixed.exe
File opened (read-only)	\??\E:	revil-fixed.exe
File opened (read-only)	\??\G:	revil-fixed.exe
File opened (read-only)	\??\J:	revil-fixed.exe
File opened (read-only)	\??\N:	revil-fixed.exe
File opened (read-only)	\??\O:	revil-fixed.exe
File opened (read-only)	\??\W:	revil-fixed.exe
File opened (read-only)	\??\Y:	revil-fixed.exe
File opened (read-only)	\??\M:	revil-fixed.exe
File opened (read-only)	\??\U:	revil-fixed.exe
File opened (read-only)	\??\V:	revil-fixed.exe
File opened (read-only)	\??\X:	revil-fixed.exe
File opened (read-only)	\??\F:	revil-fixed.exe
File opened (read-only)	\??\D:	revil-fixed.exe
File opened (read-only)	\??\K:	revil-fixed.exe
File opened (read-only)	\??\L:	revil-fixed.exe
File opened (read-only)	\??\P:	revil-fixed.exe
File opened (read-only)	\??\R:	revil-fixed.exe
File opened (read-only)	\??\S:	revil-fixed.exe
File opened (read-only)	\??\Z:	revil-fixed.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mthj31y.bmp"	revil-fixed.exe

Drops file in Program Files directory 35 IoCs

description	ioc	Process
File opened for modification	\??\c:\program files\ImportUpdate.gif	revil-fixed.exe
File opened for modification	\??\c:\program files\InstallUnblock.M2TS	revil-fixed.exe
File opened for modification	\??\c:\program files\MergePublish.wpl	revil-fixed.exe
File opened for modification	\??\c:\program files\StepCheckpoint.M2V	revil-fixed.exe
File opened for modification	\??\c:\program files\TraceDisconnect.potx	revil-fixed.exe
File opened for modification	\??\c:\program files\UnpublishConvertTo.mp4	revil-fixed.exe
File created	\??\c:\program files (x86)\956w42-readme.txt	revil-fixed.exe
File opened for modification	\??\c:\program files\NewDeny.jpe	revil-fixed.exe
File opened for modification	\??\c:\program files\NewUnpublish.xlsx	revil-fixed.exe
File opened for modification	\??\c:\program files\OpenSync.dwg	revil-fixed.exe
File opened for modification	\??\c:\program files\ProtectMove.mp2	revil-fixed.exe
File opened for modification	\??\c:\program files\ReadUnblock.xhtml	revil-fixed.exe
File opened for modification	\??\c:\program files\UseExport.wma	revil-fixed.exe
File created	\??\c:\program files (x86)\tmp	revil-fixed.exe
File opened for modification	\??\c:\program files\DismountNew.mid	revil-fixed.exe
File opened for modification	\??\c:\program files\SkipSuspend.jfif	revil-fixed.exe
File opened for modification	\??\c:\program files\SwitchUnblock.kix	revil-fixed.exe
File opened for modification	\??\c:\program files\UndoExit.m4v	revil-fixed.exe
File opened for modification	\??\c:\program files\CompleteEnable.m4v	revil-fixed.exe
File opened for modification	\??\c:\program files\msedge_installer.log	revil-fixed.exe
File opened for modification	\??\c:\program files\OpenMove.TS	revil-fixed.exe
File opened for modification	\??\c:\program files\RestoreGrant.pptm	revil-fixed.exe
File created	\??\c:\program files\tmp	revil-fixed.exe
File opened for modification	\??\c:\program files\EditRemove.bmp	revil-fixed.exe
File opened for modification	\??\c:\program files\UnlockSuspend.htm	revil-fixed.exe
File created	\??\c:\program files\956w42-readme.txt	revil-fixed.exe
File opened for modification	\??\c:\program files\RequestSplit.eps	revil-fixed.exe
File opened for modification	\??\c:\program files\RevokeRead.TS	revil-fixed.exe
File opened for modification	\??\c:\program files\SubmitOptimize.dib	revil-fixed.exe
File opened for modification	\??\c:\program files\UndoAssert.m4a	revil-fixed.exe
File opened for modification	\??\c:\program files\UpdateSave.tif	revil-fixed.exe
File opened for modification	\??\c:\program files\UnpublishImport.dib	revil-fixed.exe
File opened for modification	\??\c:\program files\chrome_installer.log	revil-fixed.exe
File opened for modification	\??\c:\program files\PingConvertFrom.bmp	revil-fixed.exe
File opened for modification	\??\c:\program files\PingTest.TS	revil-fixed.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	revil-fixed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe
4784	revil-fixed.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	revil-fixed.exe
Token: SeTakeOwnershipPrivilege	4784	revil-fixed.exe
Token: SeBackupPrivilege	1428	vssvc.exe
Token: SeRestorePrivilege	1428	vssvc.exe
Token: SeAuditPrivilege	1428	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1372	4784	revil-fixed.exe	92
PID 4784 wrote to memory of 1372	4784	revil-fixed.exe	92
PID 4784 wrote to memory of 1372	4784	revil-fixed.exe	92

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\revil-fixed.exe
"C:\Users\Admin\AppData\Local\Temp\revil-fixed.exe"
1⤵
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\netsh.exe
  netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:1372

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:4208

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Program Files (x86)\956w42-readme.txt

Filesize
6KB

MD5
53e2e2e19116dbba8e07da7b3c418179

SHA1
8d4a6bff392b42e57b6228b6d0a41ad2b2639b0a

SHA256
1e6482872d94cb5b9f1061f3b8565a8be68df6dd2e859ba26ba1e0acb4688361

SHA512
98b0686c07dfa8f262215bee68d7d05cac73abf74a26db58eaa04ce0efbf9f34fca409625817d990e306930fa4f833727088c895d17d40f95667b255a41f3eca

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