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Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
02/04/2024, 03:41
Behavioral task
behavioral1
Sample
230815-qwaqyaba29.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
230815-qwaqyaba29.exe
Resource
win10v2004-20240226-en
General
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Target
230815-qwaqyaba29.exe
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Size
27KB
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MD5
f680f45e190c032931f189ab71caecbc
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SHA1
02b52470aabee1a8f2700d902e249bf19ec0d945
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SHA256
05efe778c9253dc647b2667b4c821426a427607d3676e1d03a7e02c5b1e7279c
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SHA512
5647471f0fb9c01f7dd1767fafac4e40409fefac241caa4f64d86e42b7705f623a1cc7be49388dda76144261a3a7d3c42dd04ef134983ef15de0c10ddaef3294
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SSDEEP
384:3tWZPzzxAm1vaohWAdZ71+kezxBSKrvylvOy5o91z1rxYlf82vi:O7zxAmphxdZgke26Aho9dre826
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2696-0-0x00000000011A0000-0x00000000011AE000-memory.dmp family_chaos behavioral1/files/0x000b00000001313f-6.dat family_chaos behavioral1/memory/2692-8-0x0000000000B10000-0x0000000000B1E000-memory.dmp family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/2696-0-0x00000000011A0000-0x00000000011AE000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000b00000001313f-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2692-8-0x0000000000B10000-0x0000000000B1E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/2696-0-0x00000000011A0000-0x00000000011AE000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000b00000001313f-6.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2692-8-0x0000000000B10000-0x0000000000B1E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1404 bcdedit.exe 2468 bcdedit.exe -
Renames multiple (179) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 820 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini allahuakbar.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\how_to_decrypt.txt allahuakbar.exe -
Executes dropped EXE 1 IoCs
pid Process 2692 allahuakbar.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\allahuakbar.exe" allahuakbar.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CYTS71XD\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LGZQH3SP\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Documents\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Music\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\J3XTYXPF\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini allahuakbar.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Desktop\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Documents\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Pictures\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini allahuakbar.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini allahuakbar.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\3J2LRC5A\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Music\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Downloads\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Links\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\F9UL0C6O\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\PY5FLSJ8\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Videos\desktop.ini allahuakbar.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini allahuakbar.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Libraries\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini allahuakbar.exe File opened for modification C:\Users\Public\Videos\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\Searches\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\JYWEBS5E\desktop.ini allahuakbar.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini allahuakbar.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2556 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2452 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2692 allahuakbar.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2696 230815-qwaqyaba29.exe 2696 230815-qwaqyaba29.exe 2692 allahuakbar.exe 2692 allahuakbar.exe 2692 allahuakbar.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2696 230815-qwaqyaba29.exe Token: SeDebugPrivilege 2692 allahuakbar.exe Token: SeBackupPrivilege 2664 vssvc.exe Token: SeRestorePrivilege 2664 vssvc.exe Token: SeAuditPrivilege 2664 vssvc.exe Token: SeIncreaseQuotaPrivilege 2832 WMIC.exe Token: SeSecurityPrivilege 2832 WMIC.exe Token: SeTakeOwnershipPrivilege 2832 WMIC.exe Token: SeLoadDriverPrivilege 2832 WMIC.exe Token: SeSystemProfilePrivilege 2832 WMIC.exe Token: SeSystemtimePrivilege 2832 WMIC.exe Token: SeProfSingleProcessPrivilege 2832 WMIC.exe Token: SeIncBasePriorityPrivilege 2832 WMIC.exe Token: SeCreatePagefilePrivilege 2832 WMIC.exe Token: SeBackupPrivilege 2832 WMIC.exe Token: SeRestorePrivilege 2832 WMIC.exe Token: SeShutdownPrivilege 2832 WMIC.exe Token: SeDebugPrivilege 2832 WMIC.exe Token: SeSystemEnvironmentPrivilege 2832 WMIC.exe Token: SeRemoteShutdownPrivilege 2832 WMIC.exe Token: SeUndockPrivilege 2832 WMIC.exe Token: SeManageVolumePrivilege 2832 WMIC.exe Token: 33 2832 WMIC.exe Token: 34 2832 WMIC.exe Token: 35 2832 WMIC.exe Token: SeIncreaseQuotaPrivilege 2832 WMIC.exe Token: SeSecurityPrivilege 2832 WMIC.exe Token: SeTakeOwnershipPrivilege 2832 WMIC.exe Token: SeLoadDriverPrivilege 2832 WMIC.exe Token: SeSystemProfilePrivilege 2832 WMIC.exe Token: SeSystemtimePrivilege 2832 WMIC.exe Token: SeProfSingleProcessPrivilege 2832 WMIC.exe Token: SeIncBasePriorityPrivilege 2832 WMIC.exe Token: SeCreatePagefilePrivilege 2832 WMIC.exe Token: SeBackupPrivilege 2832 WMIC.exe Token: SeRestorePrivilege 2832 WMIC.exe Token: SeShutdownPrivilege 2832 WMIC.exe Token: SeDebugPrivilege 2832 WMIC.exe Token: SeSystemEnvironmentPrivilege 2832 WMIC.exe Token: SeRemoteShutdownPrivilege 2832 WMIC.exe Token: SeUndockPrivilege 2832 WMIC.exe Token: SeManageVolumePrivilege 2832 WMIC.exe Token: 33 2832 WMIC.exe Token: 34 2832 WMIC.exe Token: 35 2832 WMIC.exe Token: SeBackupPrivilege 1856 wbengine.exe Token: SeRestorePrivilege 1856 wbengine.exe Token: SeSecurityPrivilege 1856 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2696 wrote to memory of 2692 2696 230815-qwaqyaba29.exe 28 PID 2696 wrote to memory of 2692 2696 230815-qwaqyaba29.exe 28 PID 2696 wrote to memory of 2692 2696 230815-qwaqyaba29.exe 28 PID 2692 wrote to memory of 2744 2692 allahuakbar.exe 29 PID 2692 wrote to memory of 2744 2692 allahuakbar.exe 29 PID 2692 wrote to memory of 2744 2692 allahuakbar.exe 29 PID 2744 wrote to memory of 2556 2744 cmd.exe 31 PID 2744 wrote to memory of 2556 2744 cmd.exe 31 PID 2744 wrote to memory of 2556 2744 cmd.exe 31 PID 2744 wrote to memory of 2832 2744 cmd.exe 34 PID 2744 wrote to memory of 2832 2744 cmd.exe 34 PID 2744 wrote to memory of 2832 2744 cmd.exe 34 PID 2692 wrote to memory of 1488 2692 allahuakbar.exe 36 PID 2692 wrote to memory of 1488 2692 allahuakbar.exe 36 PID 2692 wrote to memory of 1488 2692 allahuakbar.exe 36 PID 1488 wrote to memory of 1404 1488 cmd.exe 38 PID 1488 wrote to memory of 1404 1488 cmd.exe 38 PID 1488 wrote to memory of 1404 1488 cmd.exe 38 PID 1488 wrote to memory of 2468 1488 cmd.exe 39 PID 1488 wrote to memory of 2468 1488 cmd.exe 39 PID 1488 wrote to memory of 2468 1488 cmd.exe 39 PID 2692 wrote to memory of 2480 2692 allahuakbar.exe 40 PID 2692 wrote to memory of 2480 2692 allahuakbar.exe 40 PID 2692 wrote to memory of 2480 2692 allahuakbar.exe 40 PID 2480 wrote to memory of 820 2480 cmd.exe 42 PID 2480 wrote to memory of 820 2480 cmd.exe 42 PID 2480 wrote to memory of 820 2480 cmd.exe 42 PID 2692 wrote to memory of 2452 2692 allahuakbar.exe 48 PID 2692 wrote to memory of 2452 2692 allahuakbar.exe 48 PID 2692 wrote to memory of 2452 2692 allahuakbar.exe 48 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\230815-qwaqyaba29.exe"C:\Users\Admin\AppData\Local\Temp\230815-qwaqyaba29.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Users\Admin\AppData\Roaming\allahuakbar.exe"C:\Users\Admin\AppData\Roaming\allahuakbar.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2556
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2832
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:1488 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1404
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2468
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2480 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:820
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\how_to_decrypt.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2452
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2664
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1856
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1600
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:360
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
548B
MD586dd265b63202e1a43e0a13cacb15510
SHA1c6f6dbd6423baf73333942ae3b8d5fec4da79be9
SHA25665eb9a936236abc249335795b35e357fb807ae96977809acbdac45a6a79694b5
SHA512d33885a468e279f98b2355f3748a5d5203af70e6276fd8bed0ebba5fb8ab1f6dfc19343d800d9d2bc63596984775f2bbe7b4d1c10fa05464b9568f1dc81cab20
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Filesize
27KB
MD5f680f45e190c032931f189ab71caecbc
SHA102b52470aabee1a8f2700d902e249bf19ec0d945
SHA25605efe778c9253dc647b2667b4c821426a427607d3676e1d03a7e02c5b1e7279c
SHA5125647471f0fb9c01f7dd1767fafac4e40409fefac241caa4f64d86e42b7705f623a1cc7be49388dda76144261a3a7d3c42dd04ef134983ef15de0c10ddaef3294
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0