cryptolocker | b3530b7519660996d28eb31a8d5b585ec60601843c77dd9f2b712812c99843e4

General

Target

a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe
Size

732KB
MD5

a8e0d4771c1f71709ddb63d9a75dc895
SHA1

347b21e94912e99fb312153948d1f2758454e136
SHA256

b3530b7519660996d28eb31a8d5b585ec60601843c77dd9f2b712812c99843e4
SHA512

00eb0353b5568995dd359df63c166025f788a70d4616312c609bbad410faaca490fc84ea4379c3a3f2eaf50cabd97987e87d266f6a9c63786113ed44ed0dabf3
SSDEEP

12288:YOpgKjXa7yw83/HhJ0I1Rn7r0EQvqFg9iBUVC3noXA:YOpgKjqL83/IgYEQiFkMmEoX

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
2844	Wawbmdknpbal.exe

Executes dropped EXE 2 IoCs

pid	Process
2844	Wawbmdknpbal.exe
2796	Wawbmdknpbal.exe

Loads dropped DLL 3 IoCs

pid	Process
2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe
2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe
2844	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\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	Wawbmdknpbal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Wawbmdknpbal.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2844	2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe	31
PID 2224 wrote to memory of 2844	2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe	31
PID 2224 wrote to memory of 2844	2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe	31
PID 2224 wrote to memory of 2844	2224	a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe	31
PID 2844 wrote to memory of 2796	2844	Wawbmdknpbal.exe	32
PID 2844 wrote to memory of 2796	2844	Wawbmdknpbal.exe	32
PID 2844 wrote to memory of 2796	2844	Wawbmdknpbal.exe	32
PID 2844 wrote to memory of 2796	2844	Wawbmdknpbal.exe	32

C:\Users\Admin\AppData\Local\Temp\a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a8e0d4771c1f71709ddb63d9a75dc895_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\a8e0d4771c1f71709ddb63d9a75dc895_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:2844
- - 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:2796

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
732KB

MD5
a8e0d4771c1f71709ddb63d9a75dc895

SHA1
347b21e94912e99fb312153948d1f2758454e136

SHA256
b3530b7519660996d28eb31a8d5b585ec60601843c77dd9f2b712812c99843e4

SHA512
00eb0353b5568995dd359df63c166025f788a70d4616312c609bbad410faaca490fc84ea4379c3a3f2eaf50cabd97987e87d266f6a9c63786113ed44ed0dabf3

Download Submit
memory/2224-0-0x000000000047F000-0x0000000000480000-memory.dmp

Filesize
4KB

Download
memory/2224-1-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2224-2-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2224-15-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2796-26-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2796-27-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2796-29-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2796-32-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2844-17-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2844-20-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2844-24-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2844-16-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download
memory/2844-31-0x0000000000400000-0x00000000004D0000-memory.dmp

Filesize
832KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads