f9cf47e1b055ac5518cef2f79f5a3c5f763cf951fc19ddd697f24c462d9429a3

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 21:34

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General

Target

2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe
Size

46KB
MD5

de457d4cfe116818344677ffe51e8ecf
SHA1

a53eb52d5f76a3a6eb2dc3a8ed1cbb9daa19ff4c
SHA256

f9cf47e1b055ac5518cef2f79f5a3c5f763cf951fc19ddd697f24c462d9429a3
SHA512

af3f63734bd5892db88e1c026963a62646b3a63301227ef6c0bf0ddf854f70001e9ea712178f3721d808e4aeb7e2191a4699108388672ab661de62fcceb6f442
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsil:V6QFElP6n+gMQMOtEvwDpjyaYaFAh39l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001228a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001228a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2244	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3020	2024-05-01_de457d4cfe116818344677ffe51e8ecf_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 3020 wrote to memory of 2244	3020	2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe	28
PID 3020 wrote to memory of 2244	3020	2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe	28
PID 3020 wrote to memory of 2244	3020	2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe	28
PID 3020 wrote to memory of 2244	3020	2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_de457d4cfe116818344677ffe51e8ecf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2244

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
46KB

MD5
78d337ad4a21aa0f56b609eee8fb6e20

SHA1
0723a0b0fda4468e66a4e7d687b930045273906d

SHA256
1caf20d44d3f26f13effa9687139e3cdfa35577289b5070fb4bd5a0f614056d6

SHA512
8dba946c11ed1e093206332e73a36676220a6a0f02ccce0d87e834c3ec011be07510a7dafeae7885f3030088ed39f91ad8a626398c6d3cd709d03ae01e04bbf4

Download Submit
memory/2244-15-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2244-22-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3020-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3020-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3020-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download