9c8ff0d147799276fc55903ff2a523e28dd0f3d82274049d9f7bfa0d4458a36e

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/06/2024, 02:29

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General

Target

2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe
Size

47KB
MD5

35c066a841f8137142544763dae151a1
SHA1

c9ed9d791acc2b29a8bbd8019d1d68436d910207
SHA256

9c8ff0d147799276fc55903ff2a523e28dd0f3d82274049d9f7bfa0d4458a36e
SHA512

fec9367fe327076f140cae5e3a9080114b77f2485127b7364927832811212dddfc2a2575d4ef31d4a3089ba6a8e49af9ac62b38af242a3f70ebf5ea951bcc57a
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAP4:P6QFElP6k+MRQMOtEvwDpjBQpVXR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1772-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000016332-11.dat	CryptoLocker_rule2
behavioral1/memory/1772-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2760-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1772-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000016332-11.dat	CryptoLocker_set1
behavioral1/memory/1772-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2760-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2760	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1772	2024-06-05_35c066a841f8137142544763dae151a1_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 1772 wrote to memory of 2760	1772	2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe	28
PID 1772 wrote to memory of 2760	1772	2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe	28
PID 1772 wrote to memory of 2760	1772	2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe	28
PID 1772 wrote to memory of 2760	1772	2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_35c066a841f8137142544763dae151a1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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
47KB

MD5
ef837c53e7e0063aa9439fd581e4aa53

SHA1
62492373a9faafb0614b40877f58907dcd092e7b

SHA256
1c26048b1ad3e9c8054a96431cf0c8aa23210cb69851726e7d4488174792ac30

SHA512
ef40a26168bba9f13abe48d281f6906b904c658fc4c9b00ec531e0dc1e004d2f072ea2974c62c5e89b64d34b507f2e210d0d0ab6e7f089471b99a75bc0608793

Download Submit
memory/1772-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1772-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1772-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1772-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1772-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2760-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download