Analysis
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max time kernel
68s -
max time network
69s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
30/05/2024, 17:00
Behavioral task
behavioral1
Sample
forkerbomb.exe
Resource
win7-20240220-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
forkerbomb.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
13 signatures
150 seconds
Behavioral task
behavioral3
Sample
forkerbomb.exe
Resource
macos-20240410-en
macos-10.15-amd64
1 signatures
150 seconds
Errors
Reason
Machine shutdown
General
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Target
forkerbomb.exe
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Size
37KB
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MD5
7e45ca42d9229d3304d6a7ef7431e7b2
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SHA1
b8c6734417f7639afdefd99b836ef1de31679888
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SHA256
53bddbe7bc25e4103041bc18bd85f9feacdff9306aacc50b28bc89fb5fac3595
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SHA512
eb629ab51fb120d27d56a20f60580ff2c9fa4c45943ed308b4ca0ed2d994e082b608064099f85c7a3d8f048e8119ca74043b1883230df5bcbb84c88705480298
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SSDEEP
384:alTMUiDHblmJEpRGyEfBffXNKCYyEAurAF+rMRTyN/0L+EcoinblneHQM3epzX78:ETqHpR9EfBfVKClEHrM+rMRa8Nu1Ut
Score
8/10
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3928 netsh.exe -
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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation forkerbomb.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cefc22da74b080e322f392168f5c3c86.exe svocoone.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cefc22da74b080e322f392168f5c3c86.exe svocoone.exe -
Executes dropped EXE 1 IoCs
pid Process 4236 svocoone.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cefc22da74b080e322f392168f5c3c86 = "\"C:\\Windows\\svocoone.exe\" .." svocoone.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\cefc22da74b080e322f392168f5c3c86 = "\"C:\\Windows\\svocoone.exe\" .." svocoone.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\svocoone.exe forkerbomb.exe File opened for modification C:\Windows\svocoone.exe forkerbomb.exe File opened for modification C:\Windows\svocoone.exe svocoone.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "156" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe 4236 svocoone.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4236 svocoone.exe -
Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe Token: 33 4236 svocoone.exe Token: SeIncBasePriorityPrivilege 4236 svocoone.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1344 LogonUI.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1908 wrote to memory of 4236 1908 forkerbomb.exe 90 PID 1908 wrote to memory of 4236 1908 forkerbomb.exe 90 PID 1908 wrote to memory of 4236 1908 forkerbomb.exe 90 PID 4236 wrote to memory of 3928 4236 svocoone.exe 93 PID 4236 wrote to memory of 3928 4236 svocoone.exe 93 PID 4236 wrote to memory of 3928 4236 svocoone.exe 93 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104 PID 4772 wrote to memory of 4032 4772 firefox.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\forkerbomb.exe"C:\Users\Admin\AppData\Local\Temp\forkerbomb.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Windows\svocoone.exe"C:\Windows\svocoone.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\svocoone.exe" "svocoone.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:3928
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3940855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1344
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4772 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe"2⤵PID:4032
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
37KB
MD57e45ca42d9229d3304d6a7ef7431e7b2
SHA1b8c6734417f7639afdefd99b836ef1de31679888
SHA25653bddbe7bc25e4103041bc18bd85f9feacdff9306aacc50b28bc89fb5fac3595
SHA512eb629ab51fb120d27d56a20f60580ff2c9fa4c45943ed308b4ca0ed2d994e082b608064099f85c7a3d8f048e8119ca74043b1883230df5bcbb84c88705480298