4cb3ac8aa682021b7dfd936dcfcec3baa182d97448767b5a0b656eaa4ca9767f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 22:48 UTC

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General

Target

2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe
Size

385KB
MD5

6b510bf5b07c6e0384c20db9524fad80
SHA1

302395aa040ae4f1d0503b91e836aebf520555b3
SHA256

4cb3ac8aa682021b7dfd936dcfcec3baa182d97448767b5a0b656eaa4ca9767f
SHA512

712e83c44ef264b0db2a28f794ab5318ad392155c766d428df4b3521a1fcd366e3789e4a5db8770f12a951d2c2786c2cfed5ddfe10b2b779b41c6f7cbcc7ce6c
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXo:nnOflT/ZFIjBz3xjTxynGUOUhXo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014b70-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2708	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1368	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_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 1368 wrote to memory of 2708	1368	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	28
PID 1368 wrote to memory of 2708	1368	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	28
PID 1368 wrote to memory of 2708	1368	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	28
PID 1368 wrote to memory of 2708	1368	2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b510bf5b07c6e0384c20db9524fad80_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

Network

DNS

mytarta.com

hasfj.exe

Remote address:

8.8.8.8:53

Request

mytarta.com

IN A

Response

No results found

8.8.8.8:53

mytarta.com

dns

hasfj.exe

57 B
107 B
1
1

DNS Request

mytarta.com

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\hasfj.exe

Filesize
385KB

MD5
fe871d25be7dacaac27abbebcd6b2da1

SHA1
869cc7c9f9a29137246d552ef27559f963e62b83

SHA256
e0756e305056d7485563b95c2920850f538ae05d6a7317da4d30d227561cd87d

SHA512
cac4d0ee04ad2f9865a41ae1f07e4a40fead89379aaf96a9815a2ddbb29e1d176832569aae5eacf7a0d6ca5e011a34c90b1e842eca6d7c7de9c2b00c4fe7fbac

Download Submit
memory/1368-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1368-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1368-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2708-19-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download