cryptolocker | 4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

General

Target

fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe
Size

837KB
MD5

fec5a0d4dea87955c124f2eaa1f759f5
SHA1

ea2e50e16448ac8131391e5322663660ef0a5632
SHA256

4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629
SHA512

2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9
SSDEEP

24576:ghZnfY/dbcSq8cluurLKjgHKOKWOGNpBpK:wfYFwt1fKjgHKYdpBp

Score

10^/10

cryptolocker discovery persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Cryptolocker family
cryptolocker

Deletes itself 1 IoCs

pid	Process
2424	Wawbmdknpbal.exe

Executes dropped EXE 2 IoCs

pid	Process
2424	Wawbmdknpbal.exe
2708	Wawbmdknpbal.exe

Loads dropped DLL 3 IoCs

pid	Process
2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe
2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe
2424	Wawbmdknpbal.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wawbmdknpbal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wawbmdknpbal.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2424	2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2424	2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2424	2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe	30
PID 2356 wrote to memory of 2424	2356	fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2708	2424	Wawbmdknpbal.exe	31
PID 2424 wrote to memory of 2708	2424	Wawbmdknpbal.exe	31
PID 2424 wrote to memory of 2708	2424	Wawbmdknpbal.exe	31
PID 2424 wrote to memory of 2708	2424	Wawbmdknpbal.exe	31

C:\Users\Admin\AppData\Local\Temp\fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\fec5a0d4dea87955c124f2eaa1f759f5_JaffaCakes118.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w000000CC
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2708

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

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

\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
837KB

MD5
fec5a0d4dea87955c124f2eaa1f759f5

SHA1
ea2e50e16448ac8131391e5322663660ef0a5632

SHA256
4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

SHA512
2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9

Download Submit
memory/2356-0-0x00000000004D2000-0x00000000004D4000-memory.dmp

Filesize
8KB

Download
memory/2356-2-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2356-1-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2356-15-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2424-17-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2424-16-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2424-18-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2424-29-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2424-31-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2708-25-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2708-26-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2708-24-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2708-30-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads