374225d40642940cc0688afd42e04a2053f995c3a129d1157779a7e34cf0f1b0

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-03-2024 05:32

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General

Target

2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe
Size

52KB
MD5

ee92ed8d8620fb2e4dbf32aaebdf1b86
SHA1

be0c99a55f261ece69cf3f4bd8392ec551d74990
SHA256

374225d40642940cc0688afd42e04a2053f995c3a129d1157779a7e34cf0f1b0
SHA512

418d42a5e9a1759f78f1dc1b9ed205897ae788e863146b09a3691838bab314242f25654ee44e97bafc8bbc3130687333ff40709681014807bd8b8a9024cb355d
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJQ:X6QFElP6n+gJBMOtEvwDpjBtE1yILJQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_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 2000 wrote to memory of 2504	2000	2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe	28
PID 2000 wrote to memory of 2504	2000	2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_ee92ed8d8620fb2e4dbf32aaebdf1b86_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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
52KB

MD5
4be937b6959df3282c6aff92969e28eb

SHA1
1e4c32d52a8efd9ec49fd194f8c59eea369b1487

SHA256
1c199efa0f1d1137ab9bfd133c4cc42eaa2d0380bf09e28112f876cc3f50eaa7

SHA512
b077d6ef8d2fc4f8920f8cc6216b3a18d3542b8790c9d8a65f9ee5fd077310865c80bfdcac25a9f6de0db8267d30bf0d7216db1dda06c5d1d6f95931b5c04a3c

Download Submit
memory/2000-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2000-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2000-5-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2504-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2504-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download