817146dabd19f19663ab07b904e240cf7fd779cea3942be012049f291527e076

Analysis

max time kernel
15s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21-08-2024 04:34

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General

Target

b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe
Size

44KB
MD5

b21f2edd954419d228370e8d05dc2cbb
SHA1

c05a480baad3e260befa599a3a80ad99e9f307a3
SHA256

817146dabd19f19663ab07b904e240cf7fd779cea3942be012049f291527e076
SHA512

0fd7eb1dd2eae1a1ddb4c455ea3c2de61aeefbce23877fa9c6fb806b66aa89d846be6a245ee1c159c60682408dc18992a52a8ed54ab328d04f5a843b7c2065e8
SSDEEP

768:1HzFcojghZP82jnFypRGsEKruDU3ajrS/Uc9UD9E:1zSigX5jFypRGsxrcNO0D9E

Score

8^/10

discovery persistence

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{71FF52D8-C390-2CAD-6784-1483ADA5239B}\stubpath = "%SystemRoot%\\system32\\wuapi.exe"	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{71FF52D8-C390-2CAD-6784-1483ADA5239B}	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2880	cmd.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wuapi.exe	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wuapi.exe	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.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	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2736	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2736	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2736	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2736	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2880	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2880	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2880	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2880	2432	b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b21f2edd954419d228370e8d05dc2cbb_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\reg.exe
  reg delete "HKEY_CURRENT_USER\Software\Microsoft\Active Setup\Installed Components\{71FF52D8-C390-2CAD-6784-1483ADA5239B}" /f
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\B21F2E~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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