378a2f9b2e1452e555f80b1cd62c1703200c503c61ac51554f61c1c7f765334f

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/04/2024, 04:25

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General

Target

2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe
Size

31KB
MD5

08d60cba66a02e85880146baf8ecc023
SHA1

5330eda2d081bee303754c0e87bc99b1340537fa
SHA256

378a2f9b2e1452e555f80b1cd62c1703200c503c61ac51554f61c1c7f765334f
SHA512

50c6be055a4e524417a423d01c862aa12f971d96a56c1df1cb18ee242035a60f3d5c0314f9ca7b2065e00f248b033c0a088e73f7ddd2adcf6490bd1b4fdd7084
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTG3:bG74zYcgT/Ekd0ryfjq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/files/0x000d00000000e655-24.dat	CryptoLocker_rule2
behavioral1/memory/2504-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2140-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2140-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2504-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2504	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	2024-04-28_08d60cba66a02e85880146baf8ecc023_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 2140 wrote to memory of 2504	2140	2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe	28
PID 2140 wrote to memory of 2504	2140	2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe	28
PID 2140 wrote to memory of 2504	2140	2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe	28
PID 2140 wrote to memory of 2504	2140	2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_08d60cba66a02e85880146baf8ecc023_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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\hasfj.exe

Filesize
31KB

MD5
53f417fc39c1ea3d9544bc772728b0f5

SHA1
b0da9d96075cf605d991b05a328c2e2dafaab3ee

SHA256
6a4ce96661192d8127b4d773a0966d0b919fe95ce1cff764689d3c2e2c8831d9

SHA512
4bed50a3c019902f2ff4de7adf68498450497f9023f2a496f277e7a2e00599ad0691956f88bd9517180fc29dcd4709fd550220cc0d59d445c5380e878b3fddc2

Download Submit
memory/2140-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2140-9-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2140-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/2140-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2140-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2504-25-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2504-18-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2504-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2504-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download