cryptolocker | 6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c

Analysis

max time kernel
154s
max time network
157s
platform
windows10_x64
resource
win10v20210408
submitted
26-07-2021 12:39

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General

Target

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
Size

360KB
MD5

354f7ec15741db7fcdfe7b158c14dfaa
SHA1

1265f62cb1bf781baaf5161e8b2fcd40a4026747
SHA256

6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c
SHA512

c8425a333a0aa7cb916406b825baaba2e462a81dcfc64b725dceadd81163f8928463603f70e6d5c354dd0ad59e4ed74572bcd780957d947bfa9d97ae89477227

Score

10^/10

cryptolocker persistence ransomware suricata

Malware Config

Signatures

CryptoLocker
Ransomware family with multiple variants.
ransomware cryptolocker
suricata: ET MALWARE Zeus GameOver Possible DGA NXDOMAIN Responses
suricata

Executes dropped EXE 2 IoCs

pid	Process
4008	Wawbmdknpbal.exe
3972	Wawbmdknpbal.exe

Deletes itself 1 IoCs

pid	Process
4008	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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	Wawbmdknpbal.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\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 516 wrote to memory of 4008	516	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	74
PID 516 wrote to memory of 4008	516	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	74
PID 516 wrote to memory of 4008	516	6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe	74
PID 4008 wrote to memory of 3972	4008	Wawbmdknpbal.exe	75
PID 4008 wrote to memory of 3972	4008	Wawbmdknpbal.exe	75
PID 4008 wrote to memory of 3972	4008	Wawbmdknpbal.exe	75

C:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe
"C:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:516
- C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
  "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" "/rC:\Users\Admin\AppData\Local\Temp\6af16a07d19bcb99eed8b440d7a110ee1bad1dd95eaeda2302c423ab9a5a146c.sample.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4008
- - C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe
    "C:\Users\Admin\AppData\Roaming\Wawbmdknpbal.exe" /w00000220
    3⤵
    - Executes dropped EXE
    PID:3972

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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