8f36dd7ea73f09b6d6506816553b35a3e2deea0307606dc7faf87e704d6ca3d3

Analysis

max time kernel
150s
max time network
141s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 15:23

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General

Target

2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe
Size

49KB
MD5

1e982274299411c0acec1ffb63e5ecfa
SHA1

4699f18d4ee7098039a9861d83f74f89a76b7e54
SHA256

8f36dd7ea73f09b6d6506816553b35a3e2deea0307606dc7faf87e704d6ca3d3
SHA512

923cfce1eb93749f869ba313200d99a36566f2e5c3daede2ac7fcc4b9c5717351b91df6f37fa8a3dd875aef75574ebcd8cb1717150cac24c7317ddf41ebd4f97
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vx1x:X6QFElP6n+gJBMOtEvwDpjBtEx7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2704	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	2024-02-14_1e982274299411c0acec1ffb63e5ecfa_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 1700 wrote to memory of 2704	1700	2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe	28
PID 1700 wrote to memory of 2704	1700	2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe	28
PID 1700 wrote to memory of 2704	1700	2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe	28
PID 1700 wrote to memory of 2704	1700	2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_1e982274299411c0acec1ffb63e5ecfa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
49KB

MD5
22ce412d9c5e4f3405206e74857c8e21

SHA1
9fd64d9700fd8838055cb68b3850b61695fb274b

SHA256
86741fd5f829861ace6bf1620404ec2a68e4832e4dddb11d75c7e38590840752

SHA512
e1696e79818eb871505261cb05a372f03ed6a07e6e427399148bf9a5b9eb5007c3ff5c718afd681bfef6578298c763baaebd82d92a583f5cbca8c1b11e0e6f99

Download Submit
memory/1700-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1700-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1700-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2704-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2704-16-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download