94f2ef2d8ea0aff6bc9b15771e5599a5c932e3bc6cfd6ef6cd756e9b3f6148b5

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/04/2024, 14:05

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General

Target

2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe
Size

89KB
MD5

402f2e33f3a863508492018397bf3577
SHA1

4670c93571a3232e9828d360599713af59d82b6f
SHA256

94f2ef2d8ea0aff6bc9b15771e5599a5c932e3bc6cfd6ef6cd756e9b3f6148b5
SHA512

7b8bb839a5f4680175d5533577ad583f285a95eda5cf47c1d1bb0ef2d57b5bd1ff72c213e926c61f118ad2d8ddd46a187d4fc2d6aac7b7f0698d30f8cf9450e5
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQoV:vCjsIOtEvwDpj5H8zPsa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012258-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012258-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3036	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-04-06_402f2e33f3a863508492018397bf3577_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 2156 wrote to memory of 3036	2156	2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe	28
PID 2156 wrote to memory of 3036	2156	2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe	28
PID 2156 wrote to memory of 3036	2156	2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe	28
PID 2156 wrote to memory of 3036	2156	2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

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\misid.exe

Filesize
89KB

MD5
406a3fa49043077f2719b131489f6dab

SHA1
3117b5f7a0eb41f779397ac9c70480f348e9fcac

SHA256
e48a2276e5f7bf204d2a5214ec2aa3d307b74fa0688a84371b165428d0198de6

SHA512
1c21eb43a2e52146c2fed1a3a064fa3b7dcbc519930d97025c72c43fb7e27a35af793af90aa4dfc245aefe196b73d697d4de214ede7df41dd0af5360ad6f206d

Download Submit
memory/2156-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2156-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2156-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3036-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3036-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download