8a39f08aeb10508fe21467c20b0f821624c9301c2ecfa2dcde42d3cbc47877d3

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 21:27

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General

Target

2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe
Size

51KB
MD5

a7d6d9b286c087af05611656b3d62441
SHA1

3e8ad9ca979c9b38b201b3bdd1c8a774a5fbdaa6
SHA256

8a39f08aeb10508fe21467c20b0f821624c9301c2ecfa2dcde42d3cbc47877d3
SHA512

dc0c45dfb385e85264ad4975b1b996994d6d82884c5b36cf585891320a5de7efda8f8650221e4e25946701c2268c20a666c443760b002c7dc416e74864a4165d
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZUM:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLqM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012120-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012120-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1276	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-05-30_a7d6d9b286c087af05611656b3d62441_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 1992 wrote to memory of 1276	1992	2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe	28
PID 1992 wrote to memory of 1276	1992	2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe	28
PID 1992 wrote to memory of 1276	1992	2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe	28
PID 1992 wrote to memory of 1276	1992	2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_a7d6d9b286c087af05611656b3d62441_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1276

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
51KB

MD5
f53b92fc788790a8837fe373d437bb75

SHA1
65ab08d465de38a57eb7fc14250b810cd1ff606f

SHA256
c50e21883f9525441ba7013795a2e0b48e2d8ed5d9e6d10166d0d10705356666

SHA512
d4fa745ca4528c7d488e183454896e7c59543c7bae085c6996cd57f8408473f3e8d400f85566830aad666c0d0fb4e30019333eda796886d04f6c922891e66235

Download Submit
memory/1276-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/1276-22-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1992-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1992-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download