8626010aaeff0f868adac3588509444a9d6d89461e7ec4336e68cffe608975bf

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 05:36

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General

Target

2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe
Size

40KB
MD5

d44dd708ec39c2c34484e8e923850959
SHA1

a1ebfce2cc90b279bc2f621b7f1ebb969a08d404
SHA256

8626010aaeff0f868adac3588509444a9d6d89461e7ec4336e68cffe608975bf
SHA512

b9b659bc7fb9812bb1056ae9cf2aebdcbc302061b83f8b033fc28f409f12a8c0b6872ef7c3b7cabfece02261b01a90edae03118536505120f9da56661def5945
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3Hwk:bA6YcA/X6G0W143Qk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001449a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2508	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1904	2024-04-30_d44dd708ec39c2c34484e8e923850959_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 1904 wrote to memory of 2508	1904	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	28
PID 1904 wrote to memory of 2508	1904	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	28
PID 1904 wrote to memory of 2508	1904	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	28
PID 1904 wrote to memory of 2508	1904	2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_d44dd708ec39c2c34484e8e923850959_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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\hasfj.exe

Filesize
40KB

MD5
6a832661a2f975a974e424e9b3d5a612

SHA1
abeddf0657cac8025807383cc6ffe749efdc9c7b

SHA256
874dc3d5d4786cbfa06e29a1ca22286ba103aecc27f7b6f851fb098abc83d93a

SHA512
374a19294d07cfcece9f59fb8e572a5b2d1eae7fc93fa902b7f0583a06fde7ac575a0c906b27bd0f6d91fc66c9bef8f7be1d75e791706e8a3e85926fb2a9f8bf

Download Submit
memory/1904-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1904-0-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1904-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2508-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download