6527602ed871ea1ebcc1c88f1f9f118611a0b90cd0a73d2bb347854b5ea75838

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
06/04/2024, 04:22

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General

Target

2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe
Size

98KB
MD5

d9cb4fb7181335d8e192d4ef0c721c9f
SHA1

f6796b5500e61e99cd474dd3bbd6b5051ba1808e
SHA256

6527602ed871ea1ebcc1c88f1f9f118611a0b90cd0a73d2bb347854b5ea75838
SHA512

5195ebf9d35b10e92593fc85343c99f499e8fbddcca5f0051ef5d3471e9c96d91a3cc5b673ec2c9525a7424cb06aa728a79938dba82a7ef7bab072892fc466e1
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbCRsVp:V6a+pOtEvwDpjtz9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000121cc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000121cc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1076	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_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 2368 wrote to memory of 1076	2368	2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe	28
PID 2368 wrote to memory of 1076	2368	2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe	28
PID 2368 wrote to memory of 1076	2368	2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe	28
PID 2368 wrote to memory of 1076	2368	2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_d9cb4fb7181335d8e192d4ef0c721c9f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1076

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
98KB

MD5
ced3c57cda6ef540656348fd70ae643b

SHA1
daf3b0e610f00db55bb56b3a4163a01ff3ce5687

SHA256
7ae87dc81af1258a75a9b02efed9b70c81371db9b59847d34224cc84e1154a93

SHA512
f2ab410e44d1c7c277f8a12bef2b5822b7c813a1aeba0f8e793acc69777722348ce6f80b3e5b8d81631e030aff8273f6e5c3eeb7323ce88156e21271c518310d

Download Submit
memory/1076-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2368-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2368-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download