eb03659bb78f387b685edfb77eba07ef345fc485712bdeb85d856f5b406c39dc

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 20:32

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General

Target

f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
Size

296KB
MD5

f1dd7bc55bc2ae931fbac16caad5d426
SHA1

3f80f95c6ba27c5b19ce2a2c64273282a6e940df
SHA256

eb03659bb78f387b685edfb77eba07ef345fc485712bdeb85d856f5b406c39dc
SHA512

6350857f1f3b028265cf964a3b0810bf7a050137bc4c396a02a896bce6e01db845f89eafd4abc796696d17abf23988068543f2132fb0b532fd29cab2928d6996
SSDEEP

6144:00BMhwjXMwGrAswx96CIXomvyhhiAXf2N8+kAyrLyZeWeB:0uM+jcVFJyhM8uNWAEeZHg

Score

7^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 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	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	uninstall.exe

Executes dropped EXE 1 IoCs

pid	Process
1712	uninstall.exe

Loads dropped DLL 4 IoCs

pid	Process
1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
1712	uninstall.exe
1712	uninstall.exe
1712	uninstall.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
File opened for modification	\??\PhysicalDrive0	uninstall.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor 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\CentralProcessor\0\Identifier	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	uninstall.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	uninstall.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1712	uninstall.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28
PID 1240 wrote to memory of 1712	1240	f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1dd7bc55bc2ae931fbac16caad5d426_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\uninstall.exe
  C:\Users\Admin\AppData\Local\Temp\uninstall.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\uninstall.exe

Filesize
296KB

MD5
f1dd7bc55bc2ae931fbac16caad5d426

SHA1
3f80f95c6ba27c5b19ce2a2c64273282a6e940df

SHA256
eb03659bb78f387b685edfb77eba07ef345fc485712bdeb85d856f5b406c39dc

SHA512
6350857f1f3b028265cf964a3b0810bf7a050137bc4c396a02a896bce6e01db845f89eafd4abc796696d17abf23988068543f2132fb0b532fd29cab2928d6996

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