f642293be37b95c23bfc994a7eb76e35337e86a2315fe18a314d16623257b194

General

Target

6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Size

226KB
MD5

6838e7456102a1e9ea00059205e42418
SHA1

5add4083a2ce784a22f5f543f9bb51d8da9a0fe6
SHA256

f642293be37b95c23bfc994a7eb76e35337e86a2315fe18a314d16623257b194
SHA512

0dc1740a0bca44ac776b0f84850bf74f6ad534913973c4fe80ce14b4ab72965a52d4b6b12d920f3851912c0336ed71111996df2d475fbf0064bdf59fcaaab855
SSDEEP

6144:FKsp/bS6Hjj08VRCnKpYQEQP2uCmD8BVoPKx1wjIik:FrxVH/0QP21mwvDx1bB

Score

10^/10

discovery evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 4 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe,C:\\WINDOWS\\System32\\userinit.exe,"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe,C:\\WINDOWS\\System32\\userinit.exe,"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.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\{nnPJ8AWW-gCoH-HeaG-aFiK-E7pNQaD5oGaQ}	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{nnPJ8AWW-gCoH-HeaG-aFiK-E7pNQaD5oGaQ}\JyYFlNCl6JMVPI3 = "\"C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe\" /ActiveX"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Disables Task Manager via registry modification
evasion

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4212-1-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-3-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-6-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-7-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-8-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-9-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/4212-22-0x0000000000400000-0x000000000047A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JyYFlNCl6JMVPI3 = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JyYFlNCl6JMVPI3 = "C:\\Users\\Admin\\AppData\\Roaming\\SboxService.exe"	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 344 set thread context of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93

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	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
4212	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93
PID 344 wrote to memory of 4212	344	6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:344
- C:\Users\Admin\AppData\Local\Temp\6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\6838e7456102a1e9ea00059205e42418_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Boot or Logon Autostart Execution: Active Setup
  - Disables RegEdit via registry modification
  - Adds Run key to start application
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:4212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/344-0-0x00000000005E0000-0x000000000060E000-memory.dmp

Filesize
184KB

Download
memory/344-4-0x00000000005E0000-0x000000000060E000-memory.dmp

Filesize
184KB

Download
memory/344-5-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/4212-1-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-3-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-6-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-7-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-8-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-9-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4212-22-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads