cryptolocker | 76487462acfa06bc90bda7d72bee7f88ea2e70d838a50d9012362958ad93f02a

General

Target

e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe
Size

726KB
MD5

e9cd494b249cea7b968fa89f1e7d40de
SHA1

fd514fe256f815cfecf67fb57e16d106443d90dc
SHA256

76487462acfa06bc90bda7d72bee7f88ea2e70d838a50d9012362958ad93f02a
SHA512

2689268a8fd96fa0e9b65f245bb3ab4ca860e7aa017e930c14d58bbe0ffc52ecb050de43865ebd8b7ff56270075d4a071caed81dff3c4d01c482d183482ff53a
SSDEEP

12288:xBnDWIk+GOifTjyBImx5MKJ5nJDLWrutVPIEwSdbE0HD1s:x5Vk+vibuIm8qZJfWyPwENdf

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
2688	Wawbmdknpbal.exe

Executes dropped EXE 2 IoCs

pid	Process
2688	Wawbmdknpbal.exe
2692	Wawbmdknpbal.exe

Loads dropped DLL 3 IoCs

pid	Process
2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe
2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe
2688	Wawbmdknpbal.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\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*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	e9cd494b249cea7b968fa89f1e7d40de_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 2764 wrote to memory of 2688	2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe	30
PID 2764 wrote to memory of 2688	2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe	30
PID 2764 wrote to memory of 2688	2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe	30
PID 2764 wrote to memory of 2688	2764	e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe	30
PID 2688 wrote to memory of 2692	2688	Wawbmdknpbal.exe	31
PID 2688 wrote to memory of 2692	2688	Wawbmdknpbal.exe	31
PID 2688 wrote to memory of 2692	2688	Wawbmdknpbal.exe	31
PID 2688 wrote to memory of 2692	2688	Wawbmdknpbal.exe	31

C:\Users\Admin\AppData\Local\Temp\e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9cd494b249cea7b968fa89f1e7d40de_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\e9cd494b249cea7b968fa89f1e7d40de_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:2688
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w0000011C
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2692

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
726KB

MD5
e9cd494b249cea7b968fa89f1e7d40de

SHA1
fd514fe256f815cfecf67fb57e16d106443d90dc

SHA256
76487462acfa06bc90bda7d72bee7f88ea2e70d838a50d9012362958ad93f02a

SHA512
2689268a8fd96fa0e9b65f245bb3ab4ca860e7aa017e930c14d58bbe0ffc52ecb050de43865ebd8b7ff56270075d4a071caed81dff3c4d01c482d183482ff53a

Download Submit
memory/2688-16-0x0000000000660000-0x0000000000670000-memory.dmp

Filesize
64KB

Download
memory/2688-17-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/2688-28-0x0000000000660000-0x0000000000670000-memory.dmp

Filesize
64KB

Download
memory/2688-29-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/2692-24-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/2692-25-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/2692-31-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/2692-30-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/2764-1-0x00000000008F0000-0x0000000000900000-memory.dmp

Filesize
64KB

Download
memory/2764-2-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/2764-14-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads