8f4f01e1fa967ec9eb8685b94ca386e9251c6687a63aeeb710b27e7b74ec1e45

Analysis

max time kernel
134s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 16:41

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General

Target

a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
Size

923KB
MD5

a350e5bbc6f02377bd1064d33d02e9bf
SHA1

cbec53ac08dc6c4fcbfd4093b3c83c87b317f762
SHA256

8f4f01e1fa967ec9eb8685b94ca386e9251c6687a63aeeb710b27e7b74ec1e45
SHA512

7421566be620bab6c009a99781fe2bb62caa8cec8df637437cdcd50a35ad72bd7a06338d2afbe2887575836ca28dcb2827e2103d2b1bb7082c2bf2e962de090d
SSDEEP

24576:ofFNoIrqIKi3r0YAwMAZhMzAD4M/JMWCV1WcsSUQFcNTMvvWg6E:UhKcWzBM+Wk1BmIru3E

Score

7^/10

discovery evasion themida

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Wine	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/3840-0-0x0000000000400000-0x00000000004EA000-memory.dmp	themida
behavioral2/memory/3840-2-0x0000000000400000-0x00000000004EA000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56
PID 3840 wrote to memory of 3436	3840	a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3436
- C:\Users\Admin\AppData\Local\Temp\a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a350e5bbc6f02377bd1064d33d02e9bf_JaffaCakes118.exe"
  2⤵
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3436-3-0x000000007FFF0000-0x000000007FFF1000-memory.dmp

Filesize
4KB

Download
memory/3436-5-0x000000007FFC0000-0x000000007FFC6000-memory.dmp

Filesize
24KB

Download
memory/3840-0-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3840-1-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/3840-2-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3840-9-0x0000000010000000-0x0000000010011000-memory.dmp

Filesize
68KB

Download