Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-11-2024 02:12
Static task
static1
Behavioral task
behavioral1
Sample
33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe
Resource
win10v2004-20241007-en
General
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Target
33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe
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Size
311KB
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MD5
a299bb3e2e868a3862c5352542979240
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SHA1
3ceb105b75611610f6cf1eefe3b918420353f065
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SHA256
33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aa
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SHA512
2a5e5f725d286b726409a7270e2ade74c26c27464dd2aad16aab234e030f7b9c077c1a3c94ff1f45a5e196aacd2dee8ce6ad3c5ef0abece6b2d2f3c2ca2ebec3
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SSDEEP
6144:Tf1g8dVoLtpzFMO0XGuaBxfwLUncgESZemE2:TfG8dVgtpRfN4ocwv9
Malware Config
Extracted
C:\Users\Admin\Documents\OneNote Notebooks\README.hta
Signatures
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Cerber
Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.
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Cerber family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Blocklisted process makes network request 1 IoCs
flow pid Process 4383 4984 mshta.exe -
Contacts a large (1105) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp5E04.bmp" 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
Drops file in Program Files directory 6 IoCs
description ioc Process File created C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\README.hta 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\DESIGNER.ONE 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\BUSINESS.ONE 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\ACADEMIC.ONE 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\BLANK.ONE 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe File opened for modification C:\Program Files\Microsoft Office\root\Templates\1033\ONENOTE\16\Stationery\PLANNERS.ONE 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mshta.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 436 PING.EXE -
Kills process with taskkill 1 IoCs
pid Process 4264 taskkill.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 436 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe Token: SeIncreaseQuotaPrivilege 2428 WMIC.exe Token: SeSecurityPrivilege 2428 WMIC.exe Token: SeTakeOwnershipPrivilege 2428 WMIC.exe Token: SeLoadDriverPrivilege 2428 WMIC.exe Token: SeSystemProfilePrivilege 2428 WMIC.exe Token: SeSystemtimePrivilege 2428 WMIC.exe Token: SeProfSingleProcessPrivilege 2428 WMIC.exe Token: SeIncBasePriorityPrivilege 2428 WMIC.exe Token: SeCreatePagefilePrivilege 2428 WMIC.exe Token: SeBackupPrivilege 2428 WMIC.exe Token: SeRestorePrivilege 2428 WMIC.exe Token: SeShutdownPrivilege 2428 WMIC.exe Token: SeDebugPrivilege 2428 WMIC.exe Token: SeSystemEnvironmentPrivilege 2428 WMIC.exe Token: SeRemoteShutdownPrivilege 2428 WMIC.exe Token: SeUndockPrivilege 2428 WMIC.exe Token: SeManageVolumePrivilege 2428 WMIC.exe Token: 33 2428 WMIC.exe Token: 34 2428 WMIC.exe Token: 35 2428 WMIC.exe Token: 36 2428 WMIC.exe Token: SeIncreaseQuotaPrivilege 2428 WMIC.exe Token: SeSecurityPrivilege 2428 WMIC.exe Token: SeTakeOwnershipPrivilege 2428 WMIC.exe Token: SeLoadDriverPrivilege 2428 WMIC.exe Token: SeSystemProfilePrivilege 2428 WMIC.exe Token: SeSystemtimePrivilege 2428 WMIC.exe Token: SeProfSingleProcessPrivilege 2428 WMIC.exe Token: SeIncBasePriorityPrivilege 2428 WMIC.exe Token: SeCreatePagefilePrivilege 2428 WMIC.exe Token: SeBackupPrivilege 2428 WMIC.exe Token: SeRestorePrivilege 2428 WMIC.exe Token: SeShutdownPrivilege 2428 WMIC.exe Token: SeDebugPrivilege 2428 WMIC.exe Token: SeSystemEnvironmentPrivilege 2428 WMIC.exe Token: SeRemoteShutdownPrivilege 2428 WMIC.exe Token: SeUndockPrivilege 2428 WMIC.exe Token: SeManageVolumePrivilege 2428 WMIC.exe Token: 33 2428 WMIC.exe Token: 34 2428 WMIC.exe Token: 35 2428 WMIC.exe Token: 36 2428 WMIC.exe Token: SeBackupPrivilege 224 vssvc.exe Token: SeRestorePrivilege 224 vssvc.exe Token: SeAuditPrivilege 224 vssvc.exe Token: 33 164 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 164 AUDIODG.EXE Token: SeDebugPrivilege 4264 taskkill.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2788 wrote to memory of 4044 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 100 PID 2788 wrote to memory of 4044 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 100 PID 4044 wrote to memory of 2428 4044 cmd.exe 102 PID 4044 wrote to memory of 2428 4044 cmd.exe 102 PID 2788 wrote to memory of 4984 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 124 PID 2788 wrote to memory of 4984 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 124 PID 2788 wrote to memory of 4984 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 124 PID 2788 wrote to memory of 4108 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 125 PID 2788 wrote to memory of 4108 2788 33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe 125 PID 4108 wrote to memory of 4264 4108 cmd.exe 127 PID 4108 wrote to memory of 4264 4108 cmd.exe 127 PID 4108 wrote to memory of 436 4108 cmd.exe 130 PID 4108 wrote to memory of 436 4108 cmd.exe 130 -
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\33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe"C:\Users\Admin\AppData\Local\Temp\33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe"1⤵
- Checks computer location settings
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\system32\wbem\WMIC.exeC:\Windows\system32\wbem\wmic.exe shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2428
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\README.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
PID:4984
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Windows\system32\taskkill.exetaskkill /f /im "33842966256e6ad79cb3cb03d9e190b17aa1b225a95289f387396e02e5af80aaN.exe"3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4264
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C:\Windows\system32\PING.EXEping -n 1 127.0.0.13⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:436
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:224
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x150 0x3041⤵
- Suspicious use of AdjustPrivilegeToken
PID:164
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
66KB
MD5f98d0e72155decf2f1b00e2f477740df
SHA1d27689aa19f7c32acde9ee446b5a26ef81c39400
SHA2569846bbdce33a1992f1ff879790a3281b375ee7c56d79bd3d808cecf1d9b2d829
SHA51250b7cf1c405eebc64d9f5a59d96c2e8a0b50ea9ec7bbc75280ba81794a78236fb9c465a3be4d4b53a65b0ff0cc240a9896e6e1e7999c7b7491cee262aee63802