78e3e2f1d2733ae0fae64561347da2ba64864ef84b5adb99382804edd942ebdc

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 03:34

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General

Target

2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe
Size

51KB
MD5

7d3267e54cf80a2c2e233f7834b91d6a
SHA1

6f548ec468768889865a896c592be6ad01ed20fa
SHA256

78e3e2f1d2733ae0fae64561347da2ba64864ef84b5adb99382804edd942ebdc
SHA512

d7edaef0312765a85f4a9f9da28d5ca89e15a7c64d61aee202e70aacdca6b34e2d4def1d3083a74bd2eb622cf6faaec3fbdc05baac9ab2237d7e316fe2d6b2de
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGf1:79mqyNhQMOtEvwDpjBxe8GGf1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1724-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000013309-11.dat	CryptoLocker_rule2
behavioral1/memory/1724-13-0x00000000021E0000-0x00000000021EF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2484-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1724-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1724-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000013309-11.dat	CryptoLocker_set1
behavioral1/memory/1724-13-0x00000000021E0000-0x00000000021EF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2484-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1724-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2484	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1724	2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_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 1724 wrote to memory of 2484	1724	2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe	28
PID 1724 wrote to memory of 2484	1724	2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_7d3267e54cf80a2c2e233f7834b91d6a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2484

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
51KB

MD5
4ef3588b810dafe162e93a4e01f5fb23

SHA1
a8a40ab643261ccb1db4e8d2357778e804383115

SHA256
96718264013f026c744fa799bd40179d02c40011f4c418883719a16a84100699

SHA512
a545fda7940d5a33f8c7312a10d98ae29e4265308c33b5455f7846554672b6aaa8d736cbafa7a2351afd8acea2fd4d5d2017ff49ab13ff6897608b20ee3d7065

Download Submit
memory/1724-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1724-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1724-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1724-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1724-13-0x00000000021E0000-0x00000000021EF000-memory.dmp

Filesize
60KB

Download
memory/1724-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2484-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2484-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2484-26-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download