6e461c718038e66c034ae10d9fd2abde472e28f7fc04e05153ad2ed73ead2d8c

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 13:38

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General

Target

2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe
Size

56KB
MD5

7b4de56fd1780afb9d81e1348c22a68f
SHA1

70e0ac207e2b4b6e4aa87bbe7f86812ea0aee8d1
SHA256

6e461c718038e66c034ae10d9fd2abde472e28f7fc04e05153ad2ed73ead2d8c
SHA512

71553112b39bb94da0e6047e0712a7e07bec9d9ccc25ffe80d89bf6499961723b7bb79d5e063a0f446f02da80e4a1a514334b9bad11db1f7a6b40707cc1c394d
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylsPQQWTa/2wx:79mqyNhQMOtEvwDpjBPY7xv3gy9WTAj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2200-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012266-11.dat	CryptoLocker_rule2
behavioral1/memory/2200-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2672-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2200-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012266-11.dat	CryptoLocker_set1
behavioral1/memory/2200-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2672-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_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 2200 wrote to memory of 2672	2200	2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe	28
PID 2200 wrote to memory of 2672	2200	2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe	28
PID 2200 wrote to memory of 2672	2200	2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe	28
PID 2200 wrote to memory of 2672	2200	2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_7b4de56fd1780afb9d81e1348c22a68f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2672

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
56KB

MD5
1a8c178e61af6aec141aba31e2fc574f

SHA1
9a5bc82ac3b883b548318e273d71b9e39c0fc8f9

SHA256
815db17133ea520d6dd245f6b002b69d0ff867e931158345cdca0a60f77f2a55

SHA512
1df91e6e4145a276a01a471601b40a81003c594933fcc5538de7dc9b43e323f6da624cef2efc2ac7a5ed4940eb6a21d274c17bd595b0ce8e1018665bbeee7aa0

Download Submit
memory/2200-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2200-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2200-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2200-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2200-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2672-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2672-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2672-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download