d126bab2b1b571d369da3bf978f1573e6670d2d5a73cdcb1cc031e8396f2a293

Analysis

max time kernel
140s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
06/07/2024, 08:52

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General

Target

27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe
Size

244KB
MD5

27f5f3b431d159dd058210156d7d94ae
SHA1

b0ba53092865155787b8058a470971b875ceef65
SHA256

d126bab2b1b571d369da3bf978f1573e6670d2d5a73cdcb1cc031e8396f2a293
SHA512

516ec9511c41fe01b410af4084127f450199e2be8535081149e901622bca7fd15bd206ad7016ee7a8439d1be44aef60fb60dca63eb5fb380c214d0ea013c5598
SSDEEP

6144:l58IQr7HrLIoNNMAZTbXioa81LnQLoqUIRvp3T:PLQr7HrvL1Rn0IIRvt

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 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 = "\"C:\\Windows\\winlogon.exe\","	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe \"C:\\Windows\\winlogon.exe\""	winlogon.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4fz8rk-15aq-16nc-23or4-2ke0fa051515}	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4fz8rk-15aq-16nc-23or4-2ke0fa051515}\StubPath = "\"C:\\Windows\\winlogon.exe\" /lanzateActiveX"	winlogon.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3000	winlogon.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	winlogon.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\winlogon.exe	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe
File opened for modification	C:\Windows\winlogon.exe	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 3000	2440	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe	84
PID 2440 wrote to memory of 3000	2440	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe	84
PID 2440 wrote to memory of 3000	2440	27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\winlogon.exe
  "C:\Windows\winlogon.exe" /instalando /melt "C:\Users\Admin\AppData\Local\Temp\27f5f3b431d159dd058210156d7d94ae_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Boot or Logon Autostart Execution: Active Setup
  - Deletes itself
  - Executes dropped EXE
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\winlogon.exe

Filesize
244KB

MD5
27f5f3b431d159dd058210156d7d94ae

SHA1
b0ba53092865155787b8058a470971b875ceef65

SHA256
d126bab2b1b571d369da3bf978f1573e6670d2d5a73cdcb1cc031e8396f2a293

SHA512
516ec9511c41fe01b410af4084127f450199e2be8535081149e901622bca7fd15bd206ad7016ee7a8439d1be44aef60fb60dca63eb5fb380c214d0ea013c5598

Download Submit
memory/2440-0-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2440-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3000-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3000-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads