a4b3a691ce6a3e55440b9a847436f083662adf5ab5bcd5f171cec8ec643c64dc

Analysis

max time kernel
131s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 07:03

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General

Target

7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe
Size

56KB
MD5

7308c40d5f90648f542eadff5a8255ec
SHA1

c93cb767338f0e6eb878edb5a83116eebe36d461
SHA256

a4b3a691ce6a3e55440b9a847436f083662adf5ab5bcd5f171cec8ec643c64dc
SHA512

8899f2129cd051bfd5d5f1d27156284eed86a0c9c6aacaac07ec80cc0b41c5d88a2b028c72c4bc36d5788ce1786c12647f93cbfd5a36798cd42849d46ddf7157
SSDEEP

768:A4JpVfMPCXp8psFM1EWND33jo7gSXeEN8kWbvNspVUQNO:bHMOp4fD3sfXVN8kWZspVUQ

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"	7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
3144	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	7308c40d5f90648f542eadff5a8255ec_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	64	7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 4840	64	7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe	85
PID 64 wrote to memory of 4840	64	7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe	85
PID 64 wrote to memory of 4840	64	7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7308c40d5f90648f542eadff5a8255ec_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\7308C4~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840

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:3144

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
c7ed90ca18c5020291f19b5ed408708d

SHA1
c22e2b5a143d13e1d8e951cde90fff9fb64daaf6

SHA256
39035609b0eea4b7122625459232c4a27bf3caa92741639fb7e65da583e1300a

SHA512
4ac91bf4b8d05040ce67da2c2dae5992f3c889e9f4148acc5f9ce2a1341ec202b6441687752f28266e692ddb20f18dffd6adae2cf3cd2c773cba4c72afbd5320

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