5713f347d6a22e5879171d4388d3c408bda326986bc7c608ae5d202e48beea17

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-02-2024 15:01

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General

Target

2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe
Size

130KB
MD5

be55d81b04464717a060b8a1ec6055f8
SHA1

25c59d6248e0ac9317e51cfa13f858bac9b63e01
SHA256

5713f347d6a22e5879171d4388d3c408bda326986bc7c608ae5d202e48beea17
SHA512

9bcede9382a1151935d09793a4a7affb38d6fa2fd5e2b67628c400357b3a059539e25cf7a2a777b15c53d88425ffc1f00811698c7dc4495250776540f31dec45
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1eds:V6a+pOtEvwDpjtzc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-02-20_be55d81b04464717a060b8a1ec6055f8_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 2240 wrote to memory of 2708	2240	2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe	18
PID 2240 wrote to memory of 2708	2240	2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe	18
PID 2240 wrote to memory of 2708	2240	2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe	18
PID 2240 wrote to memory of 2708	2240	2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe	18

C:\Users\Admin\AppData\Local\Temp\2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_be55d81b04464717a060b8a1ec6055f8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
130KB

MD5
0b05d0042529c836ee868f231c738567

SHA1
b199068de25fb01f6b79bb1e47e247b736a11e7b

SHA256
eb51545102aa20047a5be189f576b63e90ac03fdccfe0670abebc63fdda55a0c

SHA512
4c62a426a800bf553343a130f717e9ca0355691df9bd33f18431f30fbadd8c4f7ef218302ade60432dc08f3c91c978d580a8c4d235924a9278f61afe3174c47c

Download Submit
memory/2240-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2708-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download