3a81661b4f7e5d2e44847a52b46b49fb92fa2e12a4e3ab63df4b248966397567

General

Target

4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe
Size

145KB
MD5

4797668cd0a042063e3d2f34aaf3333c
SHA1

fdf90f965acbee58ee8e31fa62ddb657cfc12eb0
SHA256

3a81661b4f7e5d2e44847a52b46b49fb92fa2e12a4e3ab63df4b248966397567
SHA512

1deb315b1bed701b191a0454d44fde877b1712215864c2274c0df29f6ed6c5e91f59a563fe7864252d5f201ea27ba6532b2b217a117a36a211261321fb241f4c
SSDEEP

3072:3R1+aJe1mgawzxsBub861jIHxowR1sxn8xfyRGF27T+Ihi0Mbk6/pb8DEc3OjQD8:3RUTV5ny1sl44FMbkm5c3rZFPM0pjmbp

Score

8^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
1224	serv.exe

Loads dropped DLL 3 IoCs

pid	Process
1224	serv.exe
1224	serv.exe
1224	serv.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\serv = "C:\\Windows\\serv.exe s"	serv.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\kbdkwmas.dll	serv.exe
File created	C:\Windows\SysWOW64\mscowmsd.exe	serv.exe
File created	C:\Windows\SysWOW64\msvcwuap.dll	serv.exe
File created	C:\Windows\SysWOW64\e1.dll	serv.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\serv.exe	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe
File created	C:\Windows\serv.dll	serv.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4612	notepad.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1224	serv.exe
1224	serv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	serv.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1224	serv.exe
1224	serv.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 1224	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	89
PID 1464 wrote to memory of 1224	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	89
PID 1464 wrote to memory of 1224	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	89
PID 1464 wrote to memory of 4612	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	90
PID 1464 wrote to memory of 4612	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	90
PID 1464 wrote to memory of 4612	1464	4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe	90
PID 1224 wrote to memory of 3428	1224	serv.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3428
- C:\Users\Admin\AppData\Local\Temp\4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\4797668cd0a042063e3d2f34aaf3333c_JaffaCakes118.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Windows\serv.exe
    C:\Windows\serv.exe s
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1224
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\System32\notepad.exe C:\Users\Admin\AppData\Local\Temp\824F.tmp
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4612

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

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\824F.tmp

Filesize
65KB

MD5
a1443bcab5fdf3e3cc70485ff9a1ba7c

SHA1
2e7f79fe403030bf3487169bd3e233a6e432c48c

SHA256
c546388480e575816370ca9614a23241ecb885094bd3a4f64aae43574d0cd113

SHA512
3aa1a1cb844863409976b2139f101d9e91dcf16b83517eb0b81de63e99c38af7236f64281bd802353843b59c47ecbf01760bbac236a1459db7861aae59124458

Download Submit
C:\Windows\SysWOW64\msvcwuap.dll

Filesize
20KB

MD5
f76d28f5028944a79b35ff1eceda8e97

SHA1
ecd7ab75eb98fe8b424bdc2f9bead7045eb95b46

SHA256
1bcb085f7d3507ad1966427eee490c18a1df054d9262ccedf6b3e4230befdbb7

SHA512
ab5addcdfd097e48ec6c17f79955f3b77ecdfa33e572a1cb49cba4114998ea7da5e417fc38de4d378c5b7b2cbf925e4751ab8d6936136315ca048e16e8296f0e

Download Submit
C:\Windows\serv.dll

Filesize
7KB

MD5
348b8714e4a6c47615b24eac4f6caf55

SHA1
cbcaa8b7ca3406bc488624129bb4551fc09dceff

SHA256
8e83d6374ee37f26b1f10040df7bdba87768a1ee802893a72ed3fd4e128d2cd7

SHA512
6001547ee3bbf313791032f3ab3b4f5be31c1e869966df9b6b66d82b4aa405ac5fc86c0d162824af48cce0fb0f821df09912bb8f0f5baf81f4b53b8574658474

Download Submit
C:\Windows\serv.exe

Filesize
145KB

MD5
4797668cd0a042063e3d2f34aaf3333c

SHA1
fdf90f965acbee58ee8e31fa62ddb657cfc12eb0

SHA256
3a81661b4f7e5d2e44847a52b46b49fb92fa2e12a4e3ab63df4b248966397567

SHA512
1deb315b1bed701b191a0454d44fde877b1712215864c2274c0df29f6ed6c5e91f59a563fe7864252d5f201ea27ba6532b2b217a117a36a211261321fb241f4c

Download Submit
memory/1224-21-0x0000000077752000-0x0000000077753000-memory.dmp

Filesize
4KB

Download
memory/1224-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1464-0-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1464-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads