422d1513b125e91e2eb3191cf4723e67df13c672f738ed691a1f10d3e7f6e6bb

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 15:30

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General

Target

2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe
Size

74KB
MD5

b095489d1c056e97c175d8cda69f84b5
SHA1

6ffe4bbd4d96f67fce658e200f006d033bef6953
SHA256

422d1513b125e91e2eb3191cf4723e67df13c672f738ed691a1f10d3e7f6e6bb
SHA512

a836e8ba7d07d11af5accf1c9222416bc3a6ddd0cd7d2613ff42fb22f3bb356d5b4cbb64d352e4902f64db75afb8ec7df3bfc47ef0260f5f0f15d227dcce59e8
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1ct:X6a+SOtEvwDpjBZYvQd2a

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122f3-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122f3-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2380	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-02-03_b095489d1c056e97c175d8cda69f84b5_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 2332 wrote to memory of 2380	2332	2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe	28
PID 2332 wrote to memory of 2380	2332	2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe	28
PID 2332 wrote to memory of 2380	2332	2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe	28
PID 2332 wrote to memory of 2380	2332	2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_b095489d1c056e97c175d8cda69f84b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2380

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
74KB

MD5
e41aee01d48492a94a81fb5023d1785f

SHA1
1cb42f1e2644812895864d00e6bb89f8eb912680

SHA256
af6fe7c7c307a497e951f3ad4e897ff9903e8c732c83be4320066e57e0704272

SHA512
9e94fe25f63025baf7b86dd98f3dab2bda8c56c5ee71cc2f491efaa30a1541e412887e1ebcb6591a0c8610a1cd174d274a24927bce41fb8dd621bd3e56bdca17

Download Submit
memory/2332-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2332-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download