d35a4a4bd91f998e9596b4318a6e5451f0e2371be6bc535e470617bcab15545b

Analysis

max time kernel
14s
max time network
21s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26/07/2024, 22:27

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General

Target

75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe
Size

2.1MB
MD5

75fc8f3243e4b3e8b95b137466b4c2eb
SHA1

2c46cab582c1230659e7c18542e5f973449deb7e
SHA256

d35a4a4bd91f998e9596b4318a6e5451f0e2371be6bc535e470617bcab15545b
SHA512

f38eb56fdac919b40e5a7f23172d442bb110a6902f18cbfa69be5eed271d63625769a4f2ca9212152f0a6881db4e32c1c855d01c4be8e663c2ae891a87bcee96
SSDEEP

49152:q/NyJ9hfV+uqm5yUu3bRV8lBxQPABzyes5P:m8J9hfqm5yUu3DCBxdBq

Score

7^/10

discovery evasion trojan

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	75fc8f3243e4b3e8b95b137466b4c2eb_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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Wine	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ntprint.exe	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1848	75fc8f3243e4b3e8b95b137466b4c2eb_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	ntprint.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2796	1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe	31
PID 1848 wrote to memory of 2796	1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe	31
PID 1848 wrote to memory of 2796	1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe	31
PID 1848 wrote to memory of 2796	1848	75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\75fc8f3243e4b3e8b95b137466b4c2eb_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\75FC8F~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796

C:\Windows\SysWOW64\ntprint.exe
C:\Windows\SysWOW64\ntprint.exe
1⤵
- System Location Discovery: System Language Discovery
PID:2776

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/1848-0-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download
memory/1848-1-0x0000000000401000-0x0000000000409000-memory.dmp

Filesize
32KB

Download
memory/1848-2-0x0000000000400000-0x000000000088E000-memory.dmp

Filesize
4.6MB

Download