9b6ee6f26b635792651b7cbfe95eeb73aa11bff2b735f9aad7330100b1498d8d

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/03/2024, 07:34

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General

Target

2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe
Size

55KB
MD5

d8e30b06a48c76dd5a9f2cc0ddd7e0e9
SHA1

d59a4bc1468862527f2c8f52af462e6a71201c0d
SHA256

9b6ee6f26b635792651b7cbfe95eeb73aa11bff2b735f9aad7330100b1498d8d
SHA512

957b72a5897e9f0da98b9f63736141105e6b662094282e8c13decb20beb6dbf6bfbfdaed9fe2945a089d913c770e368d757da3c5d26fb37b0c6811d5eb0ea893
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylSV/CCjgd:79mqyNhQMOtEvwDpjBPY7xv3g8Od

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000900000001447e-11.dat	CryptoLocker_rule2
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000900000001447e-11.dat	CryptoLocker_set1
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_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 2360 wrote to memory of 3056	2360	2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe	28
PID 2360 wrote to memory of 3056	2360	2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe	28
PID 2360 wrote to memory of 3056	2360	2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe	28
PID 2360 wrote to memory of 3056	2360	2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_d8e30b06a48c76dd5a9f2cc0ddd7e0e9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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
55KB

MD5
ab4cac470758457956e5e386e5da6a10

SHA1
9192cafe8dfc3b8616105001f986caeb3b3fe53b

SHA256
7a71ab762c4a831ef077ee57324830a0df3782f19417e1b1f2d923c6bf1677e1

SHA512
dcea301d3b9042666b264ffe96b8afb80ac843038184c3cde334614b57475cb151bcb5fe031188d9552f4c4e4ee3e794e1c50bf998d9194381a5f9ce06651faf

Download Submit
memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2360-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2360-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3056-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/3056-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3056-20-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download