1681ee92966047652046efe9d62c270c3ff2e615f34981db791d59185351de84

Analysis

max time kernel
133s
max time network
148s
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 09:41

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General

Target

73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
Size

328KB
MD5

73845d9a8687cebd99fb57a0ef9a5c2c
SHA1

60c45525a5be8d12d8b2569a3738183ef0f5ee40
SHA256

1681ee92966047652046efe9d62c270c3ff2e615f34981db791d59185351de84
SHA512

d770a46b46d9f923174a41cd64ccb5542675b75e7bfb8e3026d7d991dff31a31fd9ef74aecabdd6624b5a3d7c97f67dd1e8ad27523dcbf973560f7f14264ce33
SSDEEP

6144:Ake4FipkzuKsEo1gr8lciDn7kRQIMTeDxXezjSIX8okH1z6vzhBRDW0v:w4Fipkzufir8eMTeDxXQX5kH1z67h7rv

Score

7^/10

bootkit discovery 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	uninstall.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4392	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	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
File opened for modification	\??\PhysicalDrive0	uninstall.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	73845d9a8687cebd99fb57a0ef9a5c2c_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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4392	uninstall.exe
4392	uninstall.exe
4392	uninstall.exe
4392	uninstall.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
464	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
4392	uninstall.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 4392	464	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe	84
PID 464 wrote to memory of 4392	464	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe	84
PID 464 wrote to memory of 4392	464	73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73845d9a8687cebd99fb57a0ef9a5c2c_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:464
- 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
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:4392

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
328KB

MD5
73845d9a8687cebd99fb57a0ef9a5c2c

SHA1
60c45525a5be8d12d8b2569a3738183ef0f5ee40

SHA256
1681ee92966047652046efe9d62c270c3ff2e615f34981db791d59185351de84

SHA512
d770a46b46d9f923174a41cd64ccb5542675b75e7bfb8e3026d7d991dff31a31fd9ef74aecabdd6624b5a3d7c97f67dd1e8ad27523dcbf973560f7f14264ce33

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