4d09255f846354cc25615c5414f3426e8b94abca27d23330f2816eedc50ede17

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 15:29

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General

Target

2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe
Size

46KB
MD5

4d904d2e565db2f25c6aaaaaaa68d97a
SHA1

88d0722d993978b0f395f758b30df1572a3819de
SHA256

4d09255f846354cc25615c5414f3426e8b94abca27d23330f2816eedc50ede17
SHA512

4fa4d55984fc9c0b0cad49e4c4567543febbb7c3732cf740f910dd61d8a93434793769ab2d3ed0f58d5162df64bd1a9569d217fd678843981eb391cfb5c7ca9f
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPojQ:P6QFElP6k+MRQMOtEvwDpjBQpVXzjQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1704-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012279-11.dat	CryptoLocker_rule2
behavioral1/memory/2864-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1704-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2864-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1704-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012279-11.dat	CryptoLocker_set1
behavioral1/memory/2864-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1704-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2864-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2864	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1704	2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_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 1704 wrote to memory of 2864	1704	2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe	28
PID 1704 wrote to memory of 2864	1704	2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe	28
PID 1704 wrote to memory of 2864	1704	2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe	28
PID 1704 wrote to memory of 2864	1704	2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_4d904d2e565db2f25c6aaaaaaa68d97a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2864

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
46KB

MD5
3aa381e8f1136a895270c1714b0d7401

SHA1
fbae4d0343add91306f6d6bfa3d9ba11e05968e2

SHA256
b479d2d5a78d45465c5b90adcd4b52faf1709b67c118691f8c6ad04475a3f664

SHA512
6e3181d57d91e04cb20c606d33062f412d8e4e837684cc5c7267a79e2370c768aa2dd40bd62f6c15c6e501891c75ad1450cdb4fc97a19038a587b0fa06034525

Download Submit
memory/1704-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1704-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1704-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1704-9-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1704-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2864-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2864-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2864-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2864-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download