c616013cda567a2b3d5772498aa93e73b879075e89ab935747034f3ff5ac5347

General

Target
c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Size 631KB
Sample240825-jfe76avarj
SHA256 c616013cda567a2b3d5772498aa93e73b879075e89ab935747034f3ff5ac5347
MD5 c040fabc614555ed3ee74fbcb3cd80c6
SHA1 b0438090c6d3d66ea9a0e313b285324694dc9646
SHA512 1c7e709c0a6806f17e6fa87d193fd424e567806ffb5c5b74b27ab053b56bbb9093cf9c38cfe1a05d47f806226df36a881576526c907d055fdad57d7761487d2e
SSDEEP 12288:UsAqMGHGSX1388BxGVILSY4oSewnvFdCnxJcWTKsqQLzsDhLELiUMz:UsBbWOSY4HewnvFdjaK8LzsqLifz
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery persistence

Malware Config

Signatures

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\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mstyw32.exe"	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\concp32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\vcl32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\mstyw32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\mstyw32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\concp32.exe	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4556	3148	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 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	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 69ac5ac069debfb4701bd6a85573fd1f	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{921DE6B9-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3148	c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c040fabc614555ed3ee74fbcb3cd80c6_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 744
  2⤵
  - Program crash
  PID:4556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3148 -ip 3148
1⤵
PID:872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

3

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

concp32.exe

Path C:\Windows\SysWOW64\concp32.exe
Size 631KB
SHA256 613dcde828d0a6620ef8da7cab4ed9e3764422f343e8f429ade092b3b3d03f0a
MD5 17a9d2769db286fe6a4698660007da82
SHA1 1c7ec542657fb1a15407931e3580cba5acc8cddc
SHA512 ed24e19ed949b8616f7b6a10861edf9bc9cf93a5c7c99b6d99293c0908cbd1d6fbd66c9fe1c3e115e450561a2c31dcb118df063de9531a09553874c2e247f777
SSDEEP 12288:UsAqMGHGSX1388BxGVILSY4oSewnvFdCnxJcWTKsqQLzsDhLELiUMC:UsBbWOSY4HewnvFdjaK8LzsqLifC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3148-0-0x0000000000400000-0x0000000000435000-memory.dmp

Download

memory/3148-7-0x0000000000400000-0x0000000000435000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads