d341e169b19a3805c1cf45770c855a7d5900cc6bc08b1dca5859a6170ac06262

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2023 14:49

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General

Target

45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe
Size

28KB
MD5

45a7e407be2cfbbaeca7693e867fc544
SHA1

5ac6fd29d7a64d44ffa8ea0b84cf179ac47323e4
SHA256

d341e169b19a3805c1cf45770c855a7d5900cc6bc08b1dca5859a6170ac06262
SHA512

33f928719c0d21be1a61a27f19f805bf70482d35b4df92c041f6fc18fe671de40c866e6f6827d55af58f877c38bc5851d7cf316f5b113d2c57ebe17108931daa
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSz8:b/yC4GyNM01GuQMNXw2PSo

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3924	retln.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 3924	2800	45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe	81
PID 2800 wrote to memory of 3924	2800	45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe	81
PID 2800 wrote to memory of 3924	2800	45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe	81

C:\Users\Admin\AppData\Local\Temp\45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\45a7e407be2cfbbaeca7693e867fc544_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  PID:3924

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

C:\Users\Admin\AppData\Local\Temp\retln.exe

Filesize
28KB

MD5
944dbd373bb274f027e3adb8a3385339

SHA1
e92082bccb7831c4c91f2b33091f55047f69c643

SHA256
2e4f9fac61b25d93f101e455fe01732d2521a91c3d0000ba704a23f69a25bb8a

SHA512
07ce33f0f216f8f41bba1b251a7872cfd50b7b13c8eafc9fe03ae721ae44c36bdff56c18b6ea44666fa6e3e4f9e6f9beedd372aaaa6b590fb7d0e759f0c43a11

Download Submit
C:\Users\Admin\AppData\Local\Temp\retln.exe

Filesize
28KB

MD5
944dbd373bb274f027e3adb8a3385339

SHA1
e92082bccb7831c4c91f2b33091f55047f69c643

SHA256
2e4f9fac61b25d93f101e455fe01732d2521a91c3d0000ba704a23f69a25bb8a

SHA512
07ce33f0f216f8f41bba1b251a7872cfd50b7b13c8eafc9fe03ae721ae44c36bdff56c18b6ea44666fa6e3e4f9e6f9beedd372aaaa6b590fb7d0e759f0c43a11

Download Submit
C:\Users\Admin\AppData\Local\Temp\retln.exe

Filesize
28KB

MD5
944dbd373bb274f027e3adb8a3385339

SHA1
e92082bccb7831c4c91f2b33091f55047f69c643

SHA256
2e4f9fac61b25d93f101e455fe01732d2521a91c3d0000ba704a23f69a25bb8a

SHA512
07ce33f0f216f8f41bba1b251a7872cfd50b7b13c8eafc9fe03ae721ae44c36bdff56c18b6ea44666fa6e3e4f9e6f9beedd372aaaa6b590fb7d0e759f0c43a11

Download Submit
memory/2800-133-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2800-134-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2800-135-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3924-153-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download