cryptolocker | 651f451aaf9a9694884322d91a225294af145006219c346d1a9b50a2d92db6d9

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-10-2024 09:27

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General

Target

7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe
Size

363KB
MD5

7ea2c970326af64b1b196c4dd12e61dc
SHA1

a3dbdf84d229d3ff549855cf7adc34e75d01efd3
SHA256

651f451aaf9a9694884322d91a225294af145006219c346d1a9b50a2d92db6d9
SHA512

1128583ed88f9a44b98c8ab6bbb55a75645e89242dae941dae69c659ba66e40bced6364cb4e05eae5a99be10d2742ed34ec714c314332150ede2fc8c62f6dcd1
SSDEEP

6144:s7I4W+7S5WSSYmPnjpv1WgTO3x5N22vWvLRKKAX5l++SyVI:cBS5VSHFdT85I2vCMX5l+Zn

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
1148	Wawbmdknpbal.exe

Executes dropped EXE 2 IoCs

pid	Process
1148	Wawbmdknpbal.exe
1700	Wawbmdknpbal.exe

Loads dropped DLL 2 IoCs

pid	Process
2132	7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe
1148	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\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	7ea2c970326af64b1b196c4dd12e61dc_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 2132 wrote to memory of 1148	2132	7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe	30
PID 2132 wrote to memory of 1148	2132	7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe	30
PID 2132 wrote to memory of 1148	2132	7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe	30
PID 2132 wrote to memory of 1148	2132	7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe	30
PID 1148 wrote to memory of 1700	1148	Wawbmdknpbal.exe	31
PID 1148 wrote to memory of 1700	1148	Wawbmdknpbal.exe	31
PID 1148 wrote to memory of 1700	1148	Wawbmdknpbal.exe	31
PID 1148 wrote to memory of 1700	1148	Wawbmdknpbal.exe	31

C:\Users\Admin\AppData\Local\Temp\7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7ea2c970326af64b1b196c4dd12e61dc_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\7ea2c970326af64b1b196c4dd12e61dc_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:1148
- - 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:1700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
363KB

MD5
7ea2c970326af64b1b196c4dd12e61dc

SHA1
a3dbdf84d229d3ff549855cf7adc34e75d01efd3

SHA256
651f451aaf9a9694884322d91a225294af145006219c346d1a9b50a2d92db6d9

SHA512
1128583ed88f9a44b98c8ab6bbb55a75645e89242dae941dae69c659ba66e40bced6364cb4e05eae5a99be10d2742ed34ec714c314332150ede2fc8c62f6dcd1

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads