cryptolocker | 4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d

General

Target

4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe
Size

360KB
MD5

b07325f2686e5c26791424d9de7a5c54
SHA1

f7d4163877616c819758c07c8c926a9b60c844fa
SHA256

4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d
SHA512

8f4824daef0b9bf70b7de5994baad455e4a1153c0f3976ebcf2f4b061c77a124f8ca0db9455a6bd8d36cb1c1c7e583964b951eb93571f1aa2c277f91775429b4
SSDEEP

6144:7Y56KnPgfagNgMhJAp/WgTO3x5N22vWvLRKKAX5l++SyVI4H:qdgfpN/AxT85I2vCMX5l+Zn

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
Executes dropped EXE 2 IoCs

Processes:

Wawbmdknpbal.exeWawbmdknpbal.exe

pid process

1712 Wawbmdknpbal.exe
1176 Wawbmdknpbal.exe
Deletes itself 1 IoCs

Processes:

Wawbmdknpbal.exe

pid process

1712 Wawbmdknpbal.exe
Loads dropped DLL 1 IoCs

Processes:

4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe

pid process

1492 4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe

pid	process
1712	Wawbmdknpbal.exe
1176	Wawbmdknpbal.exe

pid	process
1712	Wawbmdknpbal.exe

pid	process
1492	4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Wawbmdknpbal.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exeWawbmdknpbal.exe

description	pid	process	target process
PID 1492 wrote to memory of 1712	1492	4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe	Wawbmdknpbal.exe
PID 1492 wrote to memory of 1712	1492	4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe	Wawbmdknpbal.exe
PID 1492 wrote to memory of 1712	1492	4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe	Wawbmdknpbal.exe
PID 1492 wrote to memory of 1712	1492	4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe	Wawbmdknpbal.exe
PID 1712 wrote to memory of 1176	1712	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1712 wrote to memory of 1176	1712	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1712 wrote to memory of 1176	1712	Wawbmdknpbal.exe	Wawbmdknpbal.exe
PID 1712 wrote to memory of 1176	1712	Wawbmdknpbal.exe	Wawbmdknpbal.exe

C:\Users\Admin\AppData\Local\Temp\4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe
"C:\Users\Admin\AppData\Local\Temp\4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w000000C8
    3⤵
    - Executes dropped EXE
    PID:1176

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
360KB

MD5
b07325f2686e5c26791424d9de7a5c54

SHA1
f7d4163877616c819758c07c8c926a9b60c844fa

SHA256
4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d

SHA512
8f4824daef0b9bf70b7de5994baad455e4a1153c0f3976ebcf2f4b061c77a124f8ca0db9455a6bd8d36cb1c1c7e583964b951eb93571f1aa2c277f91775429b4

Download Submit
C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
360KB

MD5
b07325f2686e5c26791424d9de7a5c54

SHA1
f7d4163877616c819758c07c8c926a9b60c844fa

SHA256
4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d

SHA512
8f4824daef0b9bf70b7de5994baad455e4a1153c0f3976ebcf2f4b061c77a124f8ca0db9455a6bd8d36cb1c1c7e583964b951eb93571f1aa2c277f91775429b4

Download Submit
C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe

Filesize
360KB

MD5
b07325f2686e5c26791424d9de7a5c54

SHA1
f7d4163877616c819758c07c8c926a9b60c844fa

SHA256
4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d

SHA512
8f4824daef0b9bf70b7de5994baad455e4a1153c0f3976ebcf2f4b061c77a124f8ca0db9455a6bd8d36cb1c1c7e583964b951eb93571f1aa2c277f91775429b4

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

Filesize
360KB

MD5
b07325f2686e5c26791424d9de7a5c54

SHA1
f7d4163877616c819758c07c8c926a9b60c844fa

SHA256
4a19518be677153ab92e1208e7507dd6adef0de0fa34295dfa5d7ac9efce176d

SHA512
8f4824daef0b9bf70b7de5994baad455e4a1153c0f3976ebcf2f4b061c77a124f8ca0db9455a6bd8d36cb1c1c7e583964b951eb93571f1aa2c277f91775429b4

Download Submit
memory/1176-60-0x0000000000000000-mapping.dmp

Download
memory/1492-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1712-56-0x0000000000000000-mapping.dmp

Download

Analysis

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