Analysis
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max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
10-02-2024 18:24
Static task
static1
Behavioral task
behavioral1
Sample
cerber.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
cerber.exe
Resource
win10v2004-20231215-en
General
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Target
cerber.exe
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Size
604KB
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MD5
8b6bc16fd137c09a08b02bbe1bb7d670
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SHA1
c69a0f6c6f809c01db92ca658fcf1b643391a2b7
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SHA256
e67834d1e8b38ec5864cfa101b140aeaba8f1900a6e269e6a94c90fcbfe56678
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SHA512
b53d2cc0fe5fa52262ace9f6e6ea3f5ce84935009822a3394bfe49c4d15dfeaa96bfe10ce77ffa93dbf81e5428122aa739a94bc709f203bc346597004fd75a24
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SSDEEP
6144:yYghlI5/u8f1mr+4RJ99MpDa52RX5wRDhOOU0qsR:yYKlYmDXEpDHRXP01
Malware Config
Extracted
C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___3UCIU265_.txt
cerber
http://p27dokhpz2n7nvgr.onion/0B14-67DE-25A4-0446-96C7
http://p27dokhpz2n7nvgr.12hygy.top/0B14-67DE-25A4-0446-96C7
http://p27dokhpz2n7nvgr.14ewqv.top/0B14-67DE-25A4-0446-96C7
http://p27dokhpz2n7nvgr.14vvrc.top/0B14-67DE-25A4-0446-96C7
http://p27dokhpz2n7nvgr.129p1t.top/0B14-67DE-25A4-0446-96C7
http://p27dokhpz2n7nvgr.1apgrn.top/0B14-67DE-25A4-0446-96C7
Extracted
C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___96FK9ZQ_.hta
cerber
Signatures
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Cerber
Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.
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Contacts a large (1102) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Modifies Windows Firewall 2 TTPs 2 IoCs
Processes:
netsh.exenetsh.exepid process 504 netsh.exe 4528 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
cerber.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation cerber.exe -
Drops startup file 1 IoCs
Processes:
cerber.exedescription ioc process File opened for modification \??\c:\users\admin\appdata\roaming\microsoft\word\startup\ cerber.exe -
Drops file in System32 directory 38 IoCs
Processes:
cerber.exedescription ioc process File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\excel cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\excel cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\onenote cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\outlook cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\office cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\word cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\the bat! cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\bitcoin cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft sql server cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\onenote cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\the bat! cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\thunderbird cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\bitcoin cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\excel cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\excel cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\desktop cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\word cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\powerpoint cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\steam cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\word cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\word cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\microsoft sql server cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\outlook cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\microsoft\office cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\office cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\powerpoint cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\local\steam cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\thunderbird cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\documents cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\office cerber.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
cerber.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmpC498.bmp" cerber.exe -
Drops file in Program Files directory 20 IoCs
Processes:
cerber.exedescription ioc process File opened for modification \??\c:\program files (x86)\bitcoin cerber.exe File opened for modification \??\c:\program files (x86)\excel cerber.exe File opened for modification \??\c:\program files (x86)\powerpoint cerber.exe File opened for modification \??\c:\program files (x86)\thunderbird cerber.exe File opened for modification \??\c:\program files\ cerber.exe File opened for modification \??\c:\program files (x86)\ cerber.exe File opened for modification \??\c:\program files (x86)\microsoft sql server cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\office cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\word cerber.exe File opened for modification \??\c:\program files (x86)\the bat! cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\excel cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\onenote cerber.exe File opened for modification \??\c:\program files (x86)\office cerber.exe File opened for modification \??\c:\program files (x86)\onenote cerber.exe File opened for modification \??\c:\program files (x86)\outlook cerber.exe File opened for modification \??\c:\program files (x86)\steam cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\outlook cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\powerpoint cerber.exe File opened for modification \??\c:\program files (x86)\word cerber.exe -
Drops file in Windows directory 64 IoCs
Processes:
cerber.exedescription ioc process File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\thunderbird cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\steam cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\bitcoin cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\steam cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\steam cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\bitcoin cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\documents cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\bitcoin cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\documents cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\thunderbird cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\desktop cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\desktop cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\thunderbird cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\bitcoin cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\excel cerber.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 2248 taskkill.exe -
Modifies registry class 1 IoCs
Processes:
cerber.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\Local Settings cerber.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 3476 NOTEPAD.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
cerber.exetaskkill.exedescription pid process Token: SeShutdownPrivilege 3068 cerber.exe Token: SeCreatePagefilePrivilege 3068 cerber.exe Token: SeDebugPrivilege 2248 taskkill.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
cerber.execmd.exedescription pid process target process PID 3068 wrote to memory of 504 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 504 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 504 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 4528 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 4528 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 4528 3068 cerber.exe netsh.exe PID 3068 wrote to memory of 4704 3068 cerber.exe mshta.exe PID 3068 wrote to memory of 4704 3068 cerber.exe mshta.exe PID 3068 wrote to memory of 4704 3068 cerber.exe mshta.exe PID 3068 wrote to memory of 3476 3068 cerber.exe NOTEPAD.EXE PID 3068 wrote to memory of 3476 3068 cerber.exe NOTEPAD.EXE PID 3068 wrote to memory of 3476 3068 cerber.exe NOTEPAD.EXE PID 3068 wrote to memory of 3112 3068 cerber.exe cmd.exe PID 3068 wrote to memory of 3112 3068 cerber.exe cmd.exe PID 3068 wrote to memory of 3112 3068 cerber.exe cmd.exe PID 3112 wrote to memory of 2248 3112 cmd.exe taskkill.exe PID 3112 wrote to memory of 2248 3112 cmd.exe taskkill.exe PID 3112 wrote to memory of 2248 3112 cmd.exe taskkill.exe PID 3112 wrote to memory of 1600 3112 cmd.exe PING.EXE PID 3112 wrote to memory of 1600 3112 cmd.exe PING.EXE PID 3112 wrote to memory of 1600 3112 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\cerber.exe"C:\Users\Admin\AppData\Local\Temp\cerber.exe"1⤵
- Checks computer location settings
- Drops startup file
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Windows\SysWOW64\netsh.exeC:\Windows\system32\netsh.exe advfirewall set allprofiles state on2⤵
- Modifies Windows Firewall
PID:504 -
C:\Windows\SysWOW64\netsh.exeC:\Windows\system32\netsh.exe advfirewall reset2⤵
- Modifies Windows Firewall
PID:4528 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___GK77CGQ_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵PID:4704
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C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___NNORO7_.txt2⤵
- Opens file in notepad (likely ransom note)
PID:3476 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im "cerber.exe"3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2248 -
C:\Windows\SysWOW64\PING.EXEping -n 1 127.0.0.13⤵
- Runs ping.exe
PID:1600
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___3UCIU265_.txtFilesize
1KB
MD5d892f295d6493cff28f8c59bc2b0240a
SHA15c1ae2475daca67736178aa0e486b125f6cfa8cf
SHA256528017cd450e72431db9f4fc83079b1fb6d89f9ed5302485956793b18e01670e
SHA5129e439570f722b96ae49c8dbc78c024ea5b5f8fb26031fd881b2d5747486c74f7872eb9010592117a0732d616baa7f905d3d5d7bfedbd71c77e6acd210fb415f6
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C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___96FK9ZQ_.htaFilesize
75KB
MD568723f806cc035d6ef04c626d2f622dd
SHA13ffca1cb3ac6d23397efd0f1abc602c277fa93ea
SHA256418bb917ecf7d93a26c3d330b225f498e7277c938e72da210c422e104364408d
SHA5121e1116de034376feaeaad096a77c3fb07bb0562f456c564aa062310cc6c4919b89d8a2cb2f1822823fd5fc36de20049b2a481c61fc46a2436a94b8b256cf6834
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memory/3068-0-0x00000000021F0000-0x0000000002221000-memory.dmpFilesize
196KB
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memory/3068-1-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-2-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-6-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-13-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-14-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-25-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-368-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-388-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/3068-393-0x0000000000440000-0x0000000000451000-memory.dmpFilesize
68KB