2a07829fe63d91f75482a33573310441e77f04ce37479d718dab1bdd8878322e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01/05/2024, 19:32

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General

Target

2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe
Size

38KB
MD5

c74be0f51e1af025e405d76fb859b085
SHA1

e898f24c3bbfd3a5a9e4fe6e5be34daf1d21440d
SHA256

2a07829fe63d91f75482a33573310441e77f04ce37479d718dab1bdd8878322e
SHA512

f4e6b510e7aecd98fdd2cd292a4e5cbc7672a9cc363b503764d04c841af8354b74590851b27e08b7b8d0eeb0af2d7ce3ab280dbd16f289cf5ec75dc7731efd9a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axO7:V6QFElP6n+gMQMOtEvwDpjyaYao

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014712-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014712-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2924	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1808	2024-05-01_c74be0f51e1af025e405d76fb859b085_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 1808 wrote to memory of 2924	1808	2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe	28
PID 1808 wrote to memory of 2924	1808	2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe	28
PID 1808 wrote to memory of 2924	1808	2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe	28
PID 1808 wrote to memory of 2924	1808	2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_c74be0f51e1af025e405d76fb859b085_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
38KB

MD5
559f5342b8f64da90276b8a251485f41

SHA1
7c8ae7fd552d94024dcfc4eeac88b29fffb520f0

SHA256
c2c3d74d6cd0118fdf1cd0f496a57e35858be58499b92f250128a511804f19de

SHA512
2f606c348b005e36b3bbb7b8a884f1fe087cda6b27d59a16693858287bc976ef7d37318d3c5ef155e3576776b1cfe1ef72f83ee917fe1533ba087aaae081bf08

Download Submit
memory/1808-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1808-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1808-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2924-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2924-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download