0f790249a9167a3a3c54db959cec8aea208f359123c1ee3bf273a4574ad17294

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 08:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe
Size

93KB
MD5

e8c92d9fb3e8e5158ffd2a4da6d0cfdd
SHA1

348e6c6cee845cdeeae718b1b280ec35c4de984e
SHA256

0f790249a9167a3a3c54db959cec8aea208f359123c1ee3bf273a4574ad17294
SHA512

d02963bd06728e8124359edad20cfb48f594c60d57f56ebbfb78e26a9e6b30221301f996e355a02b5ba291f1e9ad0c963729124f674a45beb81f17f9094c72cd
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCk:26a+2OtEvwDpjtzf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122c9-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122c9-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2144	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1812	2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_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 1812 wrote to memory of 2144	1812	2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe	28
PID 1812 wrote to memory of 2144	1812	2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe	28
PID 1812 wrote to memory of 2144	1812	2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe	28
PID 1812 wrote to memory of 2144	1812	2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_e8c92d9fb3e8e5158ffd2a4da6d0cfdd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2144

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
93KB

MD5
8fb4823c8c1a8e9de451e16bb91ae5f3

SHA1
d8c2afb114bed9c9cb855c363536276cfdfe5839

SHA256
c4af3297f8e54ac1d86c4bfc201eb74e68077a590fcf5e1570770934ab7f870b

SHA512
92fb87d1c89f97351bb697b704b0cfbff2bc170b99d5af792e86ed91177e25bafb74cfac9e42c5f8d6d6c859c316dcf253b49b6c7e4ba5c728d39572c0fe357a

Download Submit
memory/1812-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1812-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1812-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2144-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2144-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download