93b67e8549f519f940b379d4509d2e3f2ec8bc812252f0a141120062316b2d20

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 11:37

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General

Target

bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
Size

46KB
MD5

bb91e76821ac6ea5bf6081f6eae44f12
SHA1

5b7ca07c52bce52bad6087f91129db6100cecc30
SHA256

93b67e8549f519f940b379d4509d2e3f2ec8bc812252f0a141120062316b2d20
SHA512

9cc1e61b368afc5c5baca53ef7b02954fd470c799c576762e9fadd739cf197f51a58392e4f8fefa7eeea05ed2a85c93a0f9d49058755488170526ad7fa11670f
SSDEEP

768:N0yZ9pQiKtPz5l2PYXahnqcS6eC4L269ShZTVuPpYRbwQGaPuUxzGwNtQ0YrSTX4:aytQRPzGnBS6eC4Lb9kTVuxY5mamNwNK

Score

10^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exeC:\\Users\\Admin\\AppData\\Roaming\\appconf32.exe,"	TSTheme.exe

Deletes itself 1 IoCs

pid	Process
2840	TSTheme.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 1 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	TSTheme.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	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TSTheme.exe

Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	TSTheme.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	TSTheme.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	TSTheme.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe
2840	TSTheme.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31
PID 1280 wrote to memory of 2840	1280	bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bb91e76821ac6ea5bf6081f6eae44f12_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\SysWOW64\TSTheme.exe
  C:\Windows\system32\TSTheme.exe
  2⤵
  - Modifies WinLogon for persistence
  - Deletes itself
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer Protected Mode
  - Modifies Internet Explorer Protected Mode Banner
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

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

memory/1280-0-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1280-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2840-1-0x0000000000170000-0x000000000017D000-memory.dmp

Filesize
52KB

Download
memory/2840-2-0x0000000000170000-0x000000000017D000-memory.dmp

Filesize
52KB

Download
memory/2840-4-0x0000000000170000-0x000000000017D000-memory.dmp

Filesize
52KB

Download
memory/2840-6-0x0000000075051000-0x0000000075052000-memory.dmp

Filesize
4KB

Download
memory/2840-7-0x0000000075040000-0x0000000075150000-memory.dmp

Filesize
1.1MB

Download
memory/2840-8-0x0000000000170000-0x000000000017D000-memory.dmp

Filesize
52KB

Download
memory/2840-12-0x0000000000170000-0x000000000017D000-memory.dmp

Filesize
52KB

Download