98f9015bfa21dc409441247251a42ed762d2fe00801bbfbefa71b530051f81ff

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 19:58

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General

Target

2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe
Size

136KB
MD5

b0d93e795d964bf438c8f76379a8221b
SHA1

d01720c65f973ae3355336f5e56b973bc678f24b
SHA256

98f9015bfa21dc409441247251a42ed762d2fe00801bbfbefa71b530051f81ff
SHA512

39f10ba6c92c9d94f064cf5e45fcd3fc8bd99a9f5bd14c95be5dd312cebf3d26553930a9efbed0e4d04230c178dc531f5ba778cdb9692e4f5504cacede321910
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwqWsviy6M:u6a++OtEvwDpj6zA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2528	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	2024-02-23_b0d93e795d964bf438c8f76379a8221b_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 2716 wrote to memory of 2528	2716	2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe	28
PID 2716 wrote to memory of 2528	2716	2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe	28
PID 2716 wrote to memory of 2528	2716	2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe	28
PID 2716 wrote to memory of 2528	2716	2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_b0d93e795d964bf438c8f76379a8221b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

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
136KB

MD5
d9460b7f134c5facf4cae05557129854

SHA1
8de87a97101cc766f0c7eac09885e6881a0ec534

SHA256
9aae68c1c9e3fe5cc788da150f2e05227151fab98aec5eeb4eabcaf54ed22365

SHA512
29024bf6ea8dc916ba555456772d7ad36ed5f4c2b1cc601551bb1297d678d43b58f5960d682b2d18bbcdc22329ab29f4fab7596d39e8333f43f5d199c862d7bf

Download Submit
memory/2528-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2528-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2716-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2716-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2716-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download