Analysis
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max time kernel
93s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04-02-2024 14:40
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___O92DG2W_.txt
cerber
http://p27dokhpz2n7nvgr.onion/9E07-580F-5C9A-0446-9898
http://p27dokhpz2n7nvgr.12hygy.top/9E07-580F-5C9A-0446-9898
http://p27dokhpz2n7nvgr.14ewqv.top/9E07-580F-5C9A-0446-9898
http://p27dokhpz2n7nvgr.14vvrc.top/9E07-580F-5C9A-0446-9898
http://p27dokhpz2n7nvgr.129p1t.top/9E07-580F-5C9A-0446-9898
http://p27dokhpz2n7nvgr.1apgrn.top/9E07-580F-5C9A-0446-9898
Extracted
C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___4JPOD_.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 (1100) 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 2272 netsh.exe 3140 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-1-5-21-3791175113-1062217823-1177695025-1000\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\documents 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\excel 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\excel 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\roaming\steam 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\office cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\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\roaming\word 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\local\outlook 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\the bat! 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\roaming\outlook 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\roaming\microsoft sql server 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\local\microsoft\outlook 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\local\office 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\local\thunderbird 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\desktop 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\local\the bat! 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\onenote 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\appdata\local\microsoft\microsoft sql server 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\roaming\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\SysWOW64\config\systemprofile\appdata\roaming\onenote cerber.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
cerber.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp9D1B.bmp" cerber.exe -
Drops file in Program Files directory 20 IoCs
Processes:
cerber.exedescription ioc process 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\onenote cerber.exe File opened for modification \??\c:\program files (x86)\powerpoint cerber.exe File opened for modification \??\c:\program files (x86)\steam 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\word cerber.exe File opened for modification \??\c:\program files (x86)\thunderbird cerber.exe File opened for modification \??\c:\program files (x86)\ cerber.exe File opened for modification \??\c:\program files (x86)\excel 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)\outlook cerber.exe File opened for modification \??\c:\program files\ cerber.exe File opened for modification \??\c:\program files (x86)\bitcoin cerber.exe File opened for modification \??\c:\program files (x86)\microsoft\microsoft sql server 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)\word cerber.exe -
Drops file in Windows directory 64 IoCs
Processes:
cerber.exedescription ioc process File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\thunderbird 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\roaming\the bat! 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\roaming\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\word 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\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\office cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\powerpoint 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\networkservice\appdata\local\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\microsoft sql server cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\desktop cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\excel 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\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\onenote cerber.exe File opened for modification \??\c:\windows\ 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\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\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\thunderbird cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\word 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\networkservice\appdata\local\microsoft\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\roaming\microsoft\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\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\networkservice\appdata\local\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\microsoft\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\local\microsoft\word 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\outlook cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\powerpoint cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\appdata\local\microsoft\excel cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\onenote cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\documents 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\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\the bat! cerber.exe File opened for modification \??\c:\windows\serviceprofiles\localservice\appdata\roaming\word cerber.exe File opened for modification \??\c:\windows\serviceprofiles\networkservice\documents 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\onenote 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\local\microsoft\word 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 628 taskkill.exe -
Modifies registry class 1 IoCs
Processes:
cerber.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\Local Settings cerber.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 4436 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 2576 cerber.exe Token: SeCreatePagefilePrivilege 2576 cerber.exe Token: SeDebugPrivilege 628 taskkill.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
cerber.execmd.exedescription pid process target process PID 2576 wrote to memory of 2272 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 2272 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 2272 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 3140 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 3140 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 3140 2576 cerber.exe netsh.exe PID 2576 wrote to memory of 1608 2576 cerber.exe mshta.exe PID 2576 wrote to memory of 1608 2576 cerber.exe mshta.exe PID 2576 wrote to memory of 1608 2576 cerber.exe mshta.exe PID 2576 wrote to memory of 4436 2576 cerber.exe NOTEPAD.EXE PID 2576 wrote to memory of 4436 2576 cerber.exe NOTEPAD.EXE PID 2576 wrote to memory of 4436 2576 cerber.exe NOTEPAD.EXE PID 2576 wrote to memory of 4324 2576 cerber.exe cmd.exe PID 2576 wrote to memory of 4324 2576 cerber.exe cmd.exe PID 2576 wrote to memory of 4324 2576 cerber.exe cmd.exe PID 4324 wrote to memory of 628 4324 cmd.exe taskkill.exe PID 4324 wrote to memory of 628 4324 cmd.exe taskkill.exe PID 4324 wrote to memory of 628 4324 cmd.exe taskkill.exe PID 4324 wrote to memory of 1716 4324 cmd.exe PING.EXE PID 4324 wrote to memory of 1716 4324 cmd.exe PING.EXE PID 4324 wrote to memory of 1716 4324 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:2576 -
C:\Windows\SysWOW64\netsh.exeC:\Windows\system32\netsh.exe advfirewall set allprofiles state on2⤵
- Modifies Windows Firewall
PID:2272 -
C:\Windows\SysWOW64\netsh.exeC:\Windows\system32\netsh.exe advfirewall reset2⤵
- Modifies Windows Firewall
PID:3140 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___3RB8QR_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵PID:1608
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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___XLSX_.txt2⤵
- Opens file in notepad (likely ransom note)
PID:4436 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4324 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im "cerber.exe"3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:628 -
C:\Windows\SysWOW64\PING.EXEping -n 1 127.0.0.13⤵
- Runs ping.exe
PID:1716
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___4JPOD_.htaFilesize
75KB
MD56a01e550652da92a950de09c014cd243
SHA15583663e6d8d487e122ea0151a9ab2fb5794187f
SHA2565bd3deef007adea15bfdb5cf11148c78192872dfa293c36b41904ecf220891f2
SHA51288e64cdb63d4949175ad7b586e354a764aa4166339e03048e61fcdb2d60fa64c49f45a80ed493768f1a6e8f4a0a83780eb3d746c92ae7478289b9f234310d8d7
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C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___O92DG2W_.txtFilesize
1KB
MD57c8e9d8b89ab9af40306b698dc2f59f2
SHA16269fd1910428f4c8d031c1b2fdd4e83bcd182c5
SHA256d1ae328fd4522a3509c7e4c9f2c610ed9852972a19ee58c122800336db80aa32
SHA5123ca22cc46c318bd2a86a2d3b3859adbfdb750a8b77e2575eec4bfab87ae691741be06fa8535e82066a2165600dfd1f631f0a6d2bf779ea08405d1eee2bfaa759
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memory/2576-0-0x0000000000770000-0x00000000007A1000-memory.dmpFilesize
196KB
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memory/2576-1-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/2576-2-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/2576-6-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/2576-362-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/2576-388-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB
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memory/2576-391-0x0000000000440000-0x0000000000451000-memory.dmpFilesize
68KB
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memory/2576-390-0x0000000000400000-0x0000000000435000-memory.dmpFilesize
212KB