8dbe8dd87884556a5a59e5980cab5e7c98b1593364d23a5dad8e6349b3d35938

Analysis

max time kernel
132s
max time network
142s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04-02-2024 15:33

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General

Target

2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe
Size

149KB
MD5

a164427cd50b27593c8253b6c587aefe
SHA1

48abbb6e2542089e6a62e1c1b5ac8362793fb43a
SHA256

8dbe8dd87884556a5a59e5980cab5e7c98b1593364d23a5dad8e6349b3d35938
SHA512

5a9c537e1407697b7bc326f4e36fdae7af8466482952f8f3bd8424ff592e2385ff3f350468083799f3558b0afdf7176fea2a429b5f204567f42f83988e114081
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFYrPu:V6a+pOtEvwDpjt22P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2132	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-02-04_a164427cd50b27593c8253b6c587aefe_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 2180 wrote to memory of 2132	2180	2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe	28
PID 2180 wrote to memory of 2132	2180	2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe	28
PID 2180 wrote to memory of 2132	2180	2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe	28
PID 2180 wrote to memory of 2132	2180	2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_a164427cd50b27593c8253b6c587aefe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2132

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
150KB

MD5
6d4cee11960f2fa38ac33c0c6c5e45ca

SHA1
289c87ced103d5dbb3aed20d77bd205c8571fbb0

SHA256
4e5c7314e68248e59e246b452d413822c93b6a898770590b9e0582cd6923165f

SHA512
bb2ed55d599ad7035e54578553300e5321be65923d997d2f0cbd4f39772ccff926eb541ae9b948f100a353bd1cf6d574470c57024c56085203128f0f2ac699ad

Download Submit
memory/2132-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2132-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2180-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download