b87b9d06d6724a5b7f4d504df2b3d034324b543e16e50ac8ed593c1d6c6d002e

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 23:30

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General

Target

2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe
Size

49KB
MD5

cb27ba7eb740b5a53b9cb7ca13e0335f
SHA1

48e0e4e476e7a806e3fe9542670dadd6c4b5c749
SHA256

b87b9d06d6724a5b7f4d504df2b3d034324b543e16e50ac8ed593c1d6c6d002e
SHA512

376886ba4e9493a72c05bb9b592c2888ca74325cf5f0867571dbe9bce00761278ec4f22487f6e5929ef0815730f8ebe00364b44c51eb99961401d2bf8e277d56
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSy:bgGYcA/53GAA6y37Q6dI+d5q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222b-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_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 1624 wrote to memory of 2932	1624	2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe	28
PID 1624 wrote to memory of 2932	1624	2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_cb27ba7eb740b5a53b9cb7ca13e0335f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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\hasfj.exe

Filesize
49KB

MD5
39fbc046cb191856707ce74be76ecb01

SHA1
7154022248c078761a82f32f6a0681038ce1c257

SHA256
ee069b6f4a0a77ec3b02a7a4836061f2773092e5df8bc3c4e5c4d0ace26b082f

SHA512
0530cd5970c28c75325b639ef7cbe993126952158b0155bbe253eeae4a0205a92fa063d64826f61b20764c831b3292e06374a78e690bb7d59d5eced45137debc

Download Submit
memory/1624-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1624-5-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2932-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2932-16-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download