9d809fcc1899691a7fa4877bc8e5314ce6ede3488e9de9764de1fb4885222553

Analysis

max time kernel
134s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 05:45

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General

Target

2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe
Size

85KB
MD5

868551eec720d6662f619ae14d09cbad
SHA1

4328ecb5c744bca196dd3168051230867c8e5f0e
SHA256

9d809fcc1899691a7fa4877bc8e5314ce6ede3488e9de9764de1fb4885222553
SHA512

f0b421b9e7f80978aa203872c821c7fadee091b3de1d05e673f856da96558dda4b896833ceb39bd27faf6d4dec43c370aeb71fb8601f4242aee92d46604c66ee
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYg:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2812	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1556	2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 2812	1556	2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_868551eec720d6662f619ae14d09cbad_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
85KB

MD5
bfb20ee1953b4fc8deb00f120dd432a7

SHA1
d8695c353f1004153153a222ad4843b07449b5ce

SHA256
98308e3a4eb691ec916a9af54fe77ae8b8b125b0a3e9648f85d1f6ba5a05071a

SHA512
173e80ffc9daacc217b8df87db173d0175e7743ed4337214a9c274dacd5568c6ea761a25c57c317c24ef7e997c5057c3260e6edd0619928030a59230a1019756

Download Submit
memory/1556-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1556-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1556-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2812-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2812-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download