1234f20e85e6fe42ec9baf95cfd1745964cd0273d071642f10b3b9952d2cca73

General

Target

7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Size

228KB
MD5

7716f695228f451da6048afedbf0ec5c
SHA1

112acae8be69453ddcf05a69e7e7595227117583
SHA256

1234f20e85e6fe42ec9baf95cfd1745964cd0273d071642f10b3b9952d2cca73
SHA512

534fd00991935b3d386a1b53aabebfd9829baffa6d20c2fda788cb3d82fef83213b53d663437cd52df8ec5edf9c2d6edcff265b4f71ddae3e37a5a6a63817330
SSDEEP

6144:VWwZltVp6fQ5R8GdwPikVuQxx9CjmmlLWi1rp:VWidpm50ipVNxDCdlbF

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe,C:\\WINDOWS\\System32\\userinit.exe,"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe,C:\\WINDOWS\\System32\\userinit.exe,"	7716f695228f451da6048afedbf0ec5c_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\{61r1K7Zg-HMWm-14l4-knLL-DFbthPjzcAFc}	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{61r1K7Zg-HMWm-14l4-knLL-DFbthPjzcAFc}\BX6kRBeYBXtpN21 = "\"C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe\" /ActiveX"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Disables Task Manager via registry modification
evasion

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/912-0-0x0000000000400000-0x0000000000451600-memory.dmp	upx
behavioral2/memory/1424-3-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/1424-4-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/1424-6-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/1424-7-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/912-8-0x0000000000400000-0x0000000000451600-memory.dmp	upx
behavioral2/memory/1424-10-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/1424-9-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral2/memory/1424-23-0x0000000000400000-0x000000000047A000-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-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BX6kRBeYBXtpN21 = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe"	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\BX6kRBeYBXtpN21 = "C:\\Users\\Admin\\AppData\\Roaming\\y6drxuj c7ti.exe"	7716f695228f451da6048afedbf0ec5c_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\	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 912 set thread context of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85

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	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
1424	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85
PID 912 wrote to memory of 1424	912	7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912
- C:\Users\Admin\AppData\Local\Temp\7716f695228f451da6048afedbf0ec5c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7716f695228f451da6048afedbf0ec5c_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:1424

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

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Downloads

memory/912-0-0x0000000000400000-0x0000000000451600-memory.dmp

Filesize
325KB

Download
memory/912-8-0x0000000000400000-0x0000000000451600-memory.dmp

Filesize
325KB

Download
memory/1424-3-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-4-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-6-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-7-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-10-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-9-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1424-23-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads