Overview
overview
10Static
static
7Ransomware...er.exe
windows10-2004-x64
8Ransomware/7ev3n.exe
windows10-2004-x64
Ransomware...le.exe
windows10-2004-x64
Ransomware...it.exe
windows10-2004-x64
Ransomware/Birele.exe
windows10-2004-x64
10Ransomware...r5.exe
windows10-2004-x64
8Ransomware...us.exe
windows10-2004-x64
10Ransomware...er.exe
windows10-2004-x64
10Ransomware...ll.exe
windows10-2004-x64
7Ransomware...ck.exe
windows10-2004-x64
7Ransomware/Dharma.exe
windows10-2004-x64
9Ransomware/Fantom.exe
windows10-2004-x64
10Ransomware...ab.exe
windows10-2004-x64
10Ransomware...ye.exe
windows10-2004-x64
10Ransomware...Eye.js
windows10-2004-x64
10Ransomware...pt.exe
windows10-2004-x64
10Ransomware...en.exe
windows10-2004-x64
8Ransomware...AZ.dll
windows10-2004-x64
3Ransomware...om.exe
windows10-2004-x64
10Ransomware...ya.exe
windows10-2004-x64
10Ransomware...ap.exe
windows10-2004-x64
1Ransomware....A.exe
windows10-2004-x64
6Ransomware...om.exe
windows10-2004-x64
10Ransomware...nt.exe
windows10-2004-x64
Ransomware...ot.exe
windows10-2004-x64
Ransomware/RedEye.exe
windows10-2004-x64
Ransomware...re.exe
windows10-2004-x64
7Ransomware/Rokku.exe
windows10-2004-x64
10Ransomware/Satana.exe
windows10-2004-x64
5Ransomware/Seftad.exe
windows10-2004-x64
6Ransomware...re.exe
windows10-2004-x64
10Ransomware/UIWIX.dll
windows10-2004-x64
1Analysis
- max time kernel
1792s - max time network
1174s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
18/03/2024, 22:36
Behavioral task
behavioral1
Sample
Ransomware/$uckyLocker.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral2
Sample
Ransomware/7ev3n.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Ransomware/Annabelle.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral4
Sample
Ransomware/BadRabbit.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
Ransomware/Birele.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral6
Sample
Ransomware/Cerber5.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
Ransomware/CoronaVirus.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral8
Sample
Ransomware/CryptoLocker.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
Ransomware/CryptoWall.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral10
Sample
Ransomware/DeriaLock.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
Ransomware/Dharma.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral12
Sample
Ransomware/Fantom.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
Ransomware/GandCrab.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral14
Sample
Ransomware/GoldenEye/GoldenEye.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
Ransomware/GoldenEye/GoldenEye.js
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral16
Sample
Ransomware/InfinityCrypt.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral17
Sample
Ransomware/Krotten.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral18
Sample
Ransomware/Locky.AZ.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral19
Sample
Ransomware/NoMoreRansom.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral20
Sample
Ransomware/NotPetya.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral21
Sample
Ransomware/PetrWrap.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
Behavioral task
behavioral22
Sample
Ransomware/Petya.A.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral23
Sample
Ransomware/PolyRansom.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral24
Sample
Ransomware/PowerPoint.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral25
Sample
Ransomware/RedBoot.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral26
Sample
Ransomware/RedEye.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral27
Sample
Ransomware/Rensenware.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral28
Sample
Ransomware/Rokku.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral29
Sample
Ransomware/Satana.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral30
Sample
Ransomware/Seftad.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral31
Sample
Ransomware/SporaRansomware.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
Behavioral task
behavioral32
Sample
Ransomware/UIWIX.dll
Resource
win10v2004-20240226-en
windows10-2004-x64
General
- Target Ransomware/Rokku.exe
- Size 666KB
- Sample240318-2h9hwsba88
- SHA256 438888ef36bad1079af79daf152db443b4472c5715a7b3da0ba24cc757c53499
- MD5 97512f4617019c907cd0f88193039e7c
- SHA1 24cfa261ee30f697e7d1e2215eee1c21eebf4579
- SHA512 cfbb8dd91434f917d507cb919aa7e6b16b7b2056d56185f6ad5b6149e05629325cdb3df907f58bb3f634b17a9989bf5b6d6b81f5396a3a556431742ed742ac4a
- SSDEEP 12288:bB/72HFAQBMiZB7fJJ2qDHKK/K5FJL+xQhrwjeI:bBKqFiT7fJJ2qbKK6F5+xQhrEJ
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
C:\Recovery\WindowsRE\README_HOW_TO_UNLOCK.TXT
- YOUR FILE HAS BEEN LOCKED In order to unlock your files, follow the instructions bellow: 1. Download and install Tor Browser 2. After a successful installation, run Tor Browser and wait for its initialization. 3. Type in the address bar: http://zvnvp2rhe3ljwf2m.onion 4. Follow the instructions on the site.
-
http://zvnvp2rhe3ljwf2m.onion
Signatures
- Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Renames multiple (55) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation Rokku.exe -
resource yara_rule behavioral28/memory/3924-0-0x0000000000400000-0x000000000058D000-memory.dmp upx behavioral28/memory/3924-202-0x0000000000400000-0x000000000058D000-memory.dmp upx - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Runs net.exe
- Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2452 WMIC.exe Token: SeSecurityPrivilege 2452 WMIC.exe Token: SeTakeOwnershipPrivilege 2452 WMIC.exe Token: SeLoadDriverPrivilege 2452 WMIC.exe Token: SeSystemProfilePrivilege 2452 WMIC.exe Token: SeSystemtimePrivilege 2452 WMIC.exe Token: SeProfSingleProcessPrivilege 2452 WMIC.exe Token: SeIncBasePriorityPrivilege 2452 WMIC.exe Token: SeCreatePagefilePrivilege 2452 WMIC.exe Token: SeBackupPrivilege 2452 WMIC.exe Token: SeRestorePrivilege 2452 WMIC.exe Token: SeShutdownPrivilege 2452 WMIC.exe Token: SeDebugPrivilege 2452 WMIC.exe Token: SeSystemEnvironmentPrivilege 2452 WMIC.exe Token: SeRemoteShutdownPrivilege 2452 WMIC.exe Token: SeUndockPrivilege 2452 WMIC.exe Token: SeManageVolumePrivilege 2452 WMIC.exe Token: 33 2452 WMIC.exe Token: 34 2452 WMIC.exe Token: 35 2452 WMIC.exe Token: 36 2452 WMIC.exe Token: SeIncreaseQuotaPrivilege 2452 WMIC.exe Token: SeSecurityPrivilege 2452 WMIC.exe Token: SeTakeOwnershipPrivilege 2452 WMIC.exe Token: SeLoadDriverPrivilege 2452 WMIC.exe Token: SeSystemProfilePrivilege 2452 WMIC.exe Token: SeSystemtimePrivilege 2452 WMIC.exe Token: SeProfSingleProcessPrivilege 2452 WMIC.exe Token: SeIncBasePriorityPrivilege 2452 WMIC.exe Token: SeCreatePagefilePrivilege 2452 WMIC.exe Token: SeBackupPrivilege 2452 WMIC.exe Token: SeRestorePrivilege 2452 WMIC.exe Token: SeShutdownPrivilege 2452 WMIC.exe Token: SeDebugPrivilege 2452 WMIC.exe Token: SeSystemEnvironmentPrivilege 2452 WMIC.exe Token: SeRemoteShutdownPrivilege 2452 WMIC.exe Token: SeUndockPrivilege 2452 WMIC.exe Token: SeManageVolumePrivilege 2452 WMIC.exe Token: 33 2452 WMIC.exe Token: 34 2452 WMIC.exe Token: 35 2452 WMIC.exe Token: 36 2452 WMIC.exe Token: SeBackupPrivilege 4080 vssvc.exe Token: SeRestorePrivilege 4080 vssvc.exe Token: SeAuditPrivilege 4080 vssvc.exe - Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 3924 wrote to memory of 2452 3924 Rokku.exe 93 PID 3924 wrote to memory of 2452 3924 Rokku.exe 93 PID 3924 wrote to memory of 2452 3924 Rokku.exe 93 PID 3924 wrote to memory of 3668 3924 Rokku.exe 95 PID 3924 wrote to memory of 3668 3924 Rokku.exe 95 PID 3924 wrote to memory of 3668 3924 Rokku.exe 95 PID 3924 wrote to memory of 2924 3924 Rokku.exe 97 PID 3924 wrote to memory of 2924 3924 Rokku.exe 97 PID 3924 wrote to memory of 2924 3924 Rokku.exe 97 PID 3924 wrote to memory of 3872 3924 Rokku.exe 99 PID 3924 wrote to memory of 3872 3924 Rokku.exe 99 PID 3924 wrote to memory of 3872 3924 Rokku.exe 99 PID 3924 wrote to memory of 3560 3924 Rokku.exe 101 PID 3924 wrote to memory of 3560 3924 Rokku.exe 101 PID 3924 wrote to memory of 3560 3924 Rokku.exe 101 PID 3924 wrote to memory of 5064 3924 Rokku.exe 103 PID 3924 wrote to memory of 5064 3924 Rokku.exe 103 PID 3924 wrote to memory of 5064 3924 Rokku.exe 103 PID 3872 wrote to memory of 4612 3872 net.exe 105 PID 3872 wrote to memory of 4612 3872 net.exe 105 PID 3872 wrote to memory of 4612 3872 net.exe 105 PID 3560 wrote to memory of 3604 3560 net.exe 106 PID 3560 wrote to memory of 3604 3560 net.exe 106 PID 3560 wrote to memory of 3604 3560 net.exe 106 PID 5064 wrote to memory of 548 5064 net.exe 107 PID 5064 wrote to memory of 548 5064 net.exe 107 PID 5064 wrote to memory of 548 5064 net.exe 107 - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Ransomware\Rokku.exe"C:\Users\Admin\AppData\Local\Temp\Ransomware\Rokku.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3924 -
C:\Windows\SysWOW64\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2452
-
-
C:\Windows\SysWOW64\reg.exe"C:\Windows\System32\reg.exe" add "HKLM\SYSTEM\CurrentControlSet\services\VSS" /v Start /t REG_DWORD /d 4 /f2⤵PID:3668
-
-
C:\Windows\SysWOW64\reg.exe"C:\Windows\System32\reg.exe" add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore" /v DisableSR /t REG_DWORD /d 1 /f2⤵PID:2924
-
-
C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop vss2⤵
- Suspicious use of WriteProcessMemory
PID:3872 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop vss3⤵PID:4612
-
-
-
C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop swprv2⤵
- Suspicious use of WriteProcessMemory
PID:3560 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop swprv3⤵PID:3604
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-
-
C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop srservice2⤵
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop srservice3⤵PID:548
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4080
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:4472
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵PID:2844
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Recovery\WindowsRE\README_HOW_TO_UNLOCK.HTML
- Size 1KB
- SHA256 a7836550412b0e0963d16d8442b894a1148326b86d119e4d30f1b11956380ef0
- MD5 c784d96ca311302c6f2f8f0bee8c725b
- SHA1 dc68b518ce0eef4f519f9127769e3e3fa8edce46
- SHA512 f97891dc3c3f15b9bc3446bc9d5913431f374aa54cced33d2082cf14d173a8178e29a8d9487c2a1ab87d2f6abf37e915f69f45c0d8b747ad3f17970645c35d98
- MD5 SHA1 SHA512
- Path C:\Recovery\WindowsRE\README_HOW_TO_UNLOCK.TXT
- Size 330B
- SHA256 eb22c6ecfd4d7d0fcea5063201ccf5e7313780e007ef47cca01f1369ee0e6be0
- MD5 04b892b779d04f3a906fde1a904d98bb
- SHA1 1a0d6cb6f921bc06ba9547a84b872ef61eb7e8a5
- SHA512 e946aa4ac3ec9e5a178eac6f4c63a98f46bc85bed3efd6a53282d87aa56e53b4c11bb0d1c58c6c670f9f4ad9952b5e7fd1bb310a8bd7b5b04e7c607d1b74238a
- MD5 SHA1 SHA512