fb9208b62c29b40f368dd8c41359c99341245803cdf7180f1e984fe1cb904b5a

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 10:44

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General

Target

cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe
Size

56KB
MD5

cf5d969773d4ac3281da461ee63f70ef
SHA1

757bc006c3a1756e85c76bd91ff9d9ca2f11168f
SHA256

fb9208b62c29b40f368dd8c41359c99341245803cdf7180f1e984fe1cb904b5a
SHA512

7b798647715163d479d63ff1542ee55600c6747c81427fc825102cd95e51595a65ec2df97adf01b45c14b7f2136286db7bea61037e2262706a4df32d34a47917
SSDEEP

768:vXKwk4iHrx0gpGpV03EAVl2FxSR+QKHnRQx+adEk1x43f+XAc0rlCv6zKVSO+bgO:voHrdoAZRKex+Hkv4+An66zKVSnbG

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUv32.dll"	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3464	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 4092	3464	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe	86
PID 3464 wrote to memory of 4092	3464	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe	86
PID 3464 wrote to memory of 4092	3464	cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cf5d969773d4ac3281da461ee63f70ef_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3464
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\CF5D96~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4092

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\windows\SysWOW64\fastuv32.dll

Filesize
52KB

MD5
5eafd918d0c8d0cdf39291201a528d1a

SHA1
7908de3117d78074af309b5ea4c62e85a3091cf6

SHA256
6669616c304afd3e4071d4397ebefc907c4d5a1ccbf2401deb6150c7d338cefe

SHA512
004a7d6986a178a245ab2131a5326f8d5b8b0f3fb5fab27bb4f9d51308bd582731c1ce1ec00f62cb31142b0477aad532e3535db02632970d8348a39c9894f545

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