eb6f9130e4951a9ff1daa8dceab4a026ed3613317a780748839de5c663d61113

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 14:51

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General

Target

2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe
Size

46KB
MD5

7d378984d8e379a7ca65462d5afb40dc
SHA1

efc0a4521e10e1384ad240ac0713adf721db708c
SHA256

eb6f9130e4951a9ff1daa8dceab4a026ed3613317a780748839de5c663d61113
SHA512

8feda65929b7d6258face324d80b3577be253a852ba22c9945af1857e9901e460cd221a6e6646cb059017f58f662191ce85fd07626907c1af47e417302e58ae5
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJv:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015c3d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015c3d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2820	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
624	2024-05-22_7d378984d8e379a7ca65462d5afb40dc_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 624 wrote to memory of 2820	624	2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe	28
PID 624 wrote to memory of 2820	624	2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe	28
PID 624 wrote to memory of 2820	624	2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe	28
PID 624 wrote to memory of 2820	624	2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_7d378984d8e379a7ca65462d5afb40dc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:624
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2820

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
46KB

MD5
b31c74cbfcd2b0ef8735893a7b835546

SHA1
1468486f7a1411a340bb33d368062a5c05617fda

SHA256
000acd3003419aa71f9781623baa17b5e28a5fbff2d98de1c6b1243c96ad080c

SHA512
03efb34a111ad87d81f695c172398e7cd7d75fa5072132432fbad4d7fcfd327a382e2438a922acfe8e8592f49e0a275a37128c90993bc2cdb323c822e0b9641b

Download Submit
memory/624-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/624-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/624-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2820-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2820-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download