5a00d6f468e02f8c267e713afb157c58cbf1e9cd32db7f8723ec148663c225e4

General

Target

63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
Size

88KB
MD5

63623f925d63a400ebf84fd5722fa73e
SHA1

8da91204b0940633d31df941f9c5a1d707f669d8
SHA256

5a00d6f468e02f8c267e713afb157c58cbf1e9cd32db7f8723ec148663c225e4
SHA512

76772529b5df3ba498e023896a1ccb623106c3c191498015293bc946e773c098274d49c9083418799af6c55f0fad9a5a8d0a04f3d47cb191b362cc4766724adc
SSDEEP

1536:RCcT79F9ZYyi/yp31ocAgYpG6Iv2NyxQAGsTmol0s:5TP3JnNAj6v2sTxl0s

Score

10^/10

bootkit evasion persistence

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe = "C:\\Users\\Public\\HD-H83DF-384922-KO\\msngrnem.exe:*:Enabled:Windows Messenger v11"	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
3012	msngrnem.exe
4640	msngrnem.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Messenger v11 = "C:\\Users\\Public\\HD-H83DF-384922-KO\\msngrnem.exe"	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe

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	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
File opened for modification	\??\PhysicalDrive0	msngrnem.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3448 set thread context of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3012 set thread context of 4640	3012	msngrnem.exe	89

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
3012	msngrnem.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 3448 wrote to memory of 2580	3448	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	84
PID 2580 wrote to memory of 3012	2580	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	88
PID 2580 wrote to memory of 3012	2580	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	88
PID 2580 wrote to memory of 3012	2580	63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe	88
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89
PID 3012 wrote to memory of 4640	3012	msngrnem.exe	89

C:\Users\Admin\AppData\Local\Temp\63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Users\Admin\AppData\Local\Temp\63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\63623f925d63a400ebf84fd5722fa73e_JaffaCakes118.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe
    "C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe"
    3⤵
    - Executes dropped EXE
    - Writes to the Master Boot Record (MBR)
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3012
  - - C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe
      "C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe"
      4⤵
      Executes dropped EXE
      PID:4640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Pre-OS Boot

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\HD-H83DF-384922-KO\msngrnem.exe

Filesize
88KB

MD5
63623f925d63a400ebf84fd5722fa73e

SHA1
8da91204b0940633d31df941f9c5a1d707f669d8

SHA256
5a00d6f468e02f8c267e713afb157c58cbf1e9cd32db7f8723ec148663c225e4

SHA512
76772529b5df3ba498e023896a1ccb623106c3c191498015293bc946e773c098274d49c9083418799af6c55f0fad9a5a8d0a04f3d47cb191b362cc4766724adc

Download Submit
memory/2580-2-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2580-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2580-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4640-73-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4640-74-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4640-77-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads