3dba52538347a6e692c9f0274d19078e0080a762dde0ff9f42860c93c7a3b3f8

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
03/02/2024, 02:34

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General

Target

2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe
Size

72KB
MD5

b0bb975205dce74748b645220f46ad79
SHA1

90381192611413ecdf43d7eb39d75b83a8fe2582
SHA256

3dba52538347a6e692c9f0274d19078e0080a762dde0ff9f42860c93c7a3b3f8
SHA512

e88d47220a9f4b01177d54e90d876ea4a301028f750b87d1effe045a266502b44df425b3ca1226ea1e69bd42949d7eb5e1cacc6a4be8a6f2752568b7a82d23c2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1sc:X6a+SOtEvwDpjBZYvQd2H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015df1-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015df1-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2092	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	2024-02-03_b0bb975205dce74748b645220f46ad79_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 2548 wrote to memory of 2092	2548	2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe	28
PID 2548 wrote to memory of 2092	2548	2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe	28
PID 2548 wrote to memory of 2092	2548	2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe	28
PID 2548 wrote to memory of 2092	2548	2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_b0bb975205dce74748b645220f46ad79_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2092

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
73KB

MD5
cc70d837857540b4943b9f4809439ed8

SHA1
12c0cd6f552ed167a99ed702e7058d9d9d03c67f

SHA256
e6a2e00d21a96fdfd995be35d6a0dee14e0a27c4bea6c805de14a79fe27ae5e9

SHA512
b599928498710af6683b15b06ec8551ecbaf8b86760732daad9d1050c6ca3bc953be1cff9f2a61add8b338436e5c59a415e99408bac6f95894a8c6d35cbaae09

Download Submit
memory/2092-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2548-0-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2548-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2548-8-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download