10e79959ac22729f9178e5aa339a5a8b45d7584e712d3e0cc02e611f3005e926

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 12:27

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General

Target

2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe
Size

55KB
MD5

510442b2771ba3478d57f6a91781b895
SHA1

40a7b19a327eba24133aa8ad03eb43fedb7f8421
SHA256

10e79959ac22729f9178e5aa339a5a8b45d7584e712d3e0cc02e611f3005e926
SHA512

3a31b64c533caacf6047cb4d7d407837e556dae7efb3ed60be6d4ba583870ffce070ce43657be31488e2ecbe93be4229fb20883d4b738afcb77ef14d82784d16
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLlHU:X6a+SOtEvwDpjBrOI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2656	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3020	2024-02-02_510442b2771ba3478d57f6a91781b895_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 3020 wrote to memory of 2656	3020	2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe	28
PID 3020 wrote to memory of 2656	3020	2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe	28
PID 3020 wrote to memory of 2656	3020	2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe	28
PID 3020 wrote to memory of 2656	3020	2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_510442b2771ba3478d57f6a91781b895_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2656

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
2c8179341e7746cc0b1e77c2ce24495b

SHA1
a377f9a7f3e69c4d3016d1e516370260997e580f

SHA256
2ce9aed5c998c688f2d163a60ef3b6a31b409018ed0764447f8a1c9c2c3a7ea2

SHA512
f7ba8d41ec21b85fc6ba6903bbdce140c9492bc317e291031d6060095923bae39284bb5f2ed81eb53b62d62196adff4f79b71833d1f8c8383e099bd38ebac3ea

Download Submit
memory/2656-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2656-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3020-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3020-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3020-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download