1b76f6c3aa3fdd64895cf7fe23f44df0949f7f4721acd564b726539d2c46b732

Analysis

max time kernel
0s
max time network
137s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 08:43

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General

Target

2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe
Size

45KB
MD5

2b7de9acf7686bd15fc22cf14640857d
SHA1

8c9f52fa659cec181b93f6161eaf25634bb486ab
SHA256

1b76f6c3aa3fdd64895cf7fe23f44df0949f7f4721acd564b726539d2c46b732
SHA512

5d96fc72952a9f64c6cf6a9440c6a6ad82b72ec2eb6146c7f7bb3ca921ef16764c1393992b3f932387bbf5e5e0f1da0daefe60525ab2b6ca9db7a42c990143d1
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hi:X6QFElP6n+gJQMOtEvwDpjBmzDkWDti

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000136fc-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000136fc-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2576	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_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 1740 wrote to memory of 2576	1740	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	28
PID 1740 wrote to memory of 2576	1740	2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2576

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
45KB

MD5
ecc3cbcadfede2df90d8dd1ed2be97a8

SHA1
73f3dfb4578afd71e08c58dc2e28640057a6b91d

SHA256
f6b90b3a574f6193b2967cd25c5a11533dc4a97f00b19abb695f8d7ae6cd4dc6

SHA512
33e18c2baf4da1acc0e892f23c741764bdbbcf310cd754bc2425da83e6800232939d0a21582fc83a1ac241121e4b75b896bec5e315e62427b436e931f0fbdf26

Download Submit
memory/1740-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1740-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2576-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2576-15-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download