cryptolocker | 4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

Analysis

max time kernel
600s
max time network
599s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2022 22:28

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General

Target

4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe
Size

837KB
MD5

fec5a0d4dea87955c124f2eaa1f759f5
SHA1

ea2e50e16448ac8131391e5322663660ef0a5632
SHA256

4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629
SHA512

2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9
SSDEEP

24576:ghZnfY/dbcSq8cluurLKjgHKOKWOGNpBpK:wfYFwt1fKjgHKYdpBp

Score

10^/10

cryptolocker persistence ransomware

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker

Executes dropped EXE 2 IoCs

pid	Process
1072	Wawbmdknpbal.exe
2876	Wawbmdknpbal.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CryptoLocker = "C:\\Users\\Admin\\AppData\\Roaming\\Wawbmdknpbal.exe"	Wawbmdknpbal.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1084 wrote to memory of 1072	1084	4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe	83
PID 1084 wrote to memory of 1072	1084	4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe	83
PID 1084 wrote to memory of 1072	1084	4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe	83
PID 1072 wrote to memory of 2876	1072	Wawbmdknpbal.exe	84
PID 1072 wrote to memory of 2876	1072	Wawbmdknpbal.exe	84
PID 1072 wrote to memory of 2876	1072	Wawbmdknpbal.exe	84

C:\Users\Admin\AppData\Local\Temp\4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe
"C:\Users\Admin\AppData\Local\Temp\4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1084
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1072
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w00000218
    3⤵
    - Executes dropped EXE
    PID:2876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

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
837KB

MD5
fec5a0d4dea87955c124f2eaa1f759f5

SHA1
ea2e50e16448ac8131391e5322663660ef0a5632

SHA256
4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

SHA512
2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9

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

Filesize
837KB

MD5
fec5a0d4dea87955c124f2eaa1f759f5

SHA1
ea2e50e16448ac8131391e5322663660ef0a5632

SHA256
4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

SHA512
2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9

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

Filesize
837KB

MD5
fec5a0d4dea87955c124f2eaa1f759f5

SHA1
ea2e50e16448ac8131391e5322663660ef0a5632

SHA256
4f3220da017e7be3e0b168a958134aae6dc96458cb12118e849465e2af752629

SHA512
2d52122e66c2239dff9186c3d91c036ba5a3ab3645bcdaba58157c5e2712b0b15131eee44b6760bfb45506f2f7155202c3cca141585c20e1f1333ddba07038b9

Download Submit
memory/1072-139-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/1072-147-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/1084-132-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/1084-138-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2876-144-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/2876-148-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download