fb37eb2308ef7c8bc08eee207453532cfd7be52a28b0ddebc0a7d3c9fc65d5b1

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 06:22

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General

Target

2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe
Size

37KB
MD5

162cd2a2e7b6e766a81a4928c4c96a92
SHA1

beceae9a7d5e1d5387f4d72ea8d4594a31ecaf67
SHA256

fb37eb2308ef7c8bc08eee207453532cfd7be52a28b0ddebc0a7d3c9fc65d5b1
SHA512

36f84ee5191d8982748d45b8e8b8c456567258668bbe7177c89be9d589c560afb7a13b0e9f724e5fb5d067baf9b15efe7d942c3b3cc71f2df36da042655d845c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHO:X6QFElP6n+gJQMOtEvwDpjBmzDg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012241-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012241-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2492	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2216	2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_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 2216 wrote to memory of 2492	2216	2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe	28
PID 2216 wrote to memory of 2492	2216	2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe	28
PID 2216 wrote to memory of 2492	2216	2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe	28
PID 2216 wrote to memory of 2492	2216	2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_162cd2a2e7b6e766a81a4928c4c96a92_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2492

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
37KB

MD5
919423e5a7287fd30759aa64681a605c

SHA1
94178eab5e867e9533574a093c33b07c515a1aad

SHA256
8a96199d0de9cca6cc9329e710457910c8ccb8dfc99f1bfe9a6e70e55360c2ce

SHA512
5c7dad3f4ccc74679017065abd023a12964b14531ac4bb92372211e507be8fa72e2dd3afdae77ba71abc4ecd78ba8a8110c291bc5fc0f3d23c2340121f6ee330

Download Submit
memory/2216-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2216-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2216-3-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2492-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2492-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download