7fec827e7870cdfbdf6bb340b42333f9d194cac7e7b1efbc949ea742b6ab7204

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 03:24

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General

Target

2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe
Size

40KB
MD5

a6e86e098d34e4a2a804f6b8c449a15c
SHA1

1aeef71e2d98d43049cf306389e612c4004bf7b6
SHA256

7fec827e7870cdfbdf6bb340b42333f9d194cac7e7b1efbc949ea742b6ab7204
SHA512

43c1110d01e972b135d67841494985b8349db5eedef594c46c15c8ba1cc05e9c5a973cad40e24d4774824c014c1113bd295d65b81df877400e592c3c803a2885
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRY:X6QFElP6n+gJQMOtEvwDpjBmzDka

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014b70-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014b70-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1624	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1908	2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_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 1908 wrote to memory of 1624	1908	2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe	28
PID 1908 wrote to memory of 1624	1908	2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe	28
PID 1908 wrote to memory of 1624	1908	2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe	28
PID 1908 wrote to memory of 1624	1908	2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_a6e86e098d34e4a2a804f6b8c449a15c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1624

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
40KB

MD5
5d06fcc4ca388d5ec1d8e5e32b4a3d82

SHA1
a811cff4e878136bacd948efdeab94602fdb7a43

SHA256
ca62e03e5c7855494f3c3af1a9181377f7b8f9a2ef84b8342a0f3465ace6def9

SHA512
aec576363114beb210d54c7d1552621526b0a8c177df06a28dff74af879b18818c15bfd25aa1adf4ac29362293c7563e98da5a4c73df1bf3bdf293179a16d62c

Download Submit
memory/1624-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1624-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1908-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1908-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1908-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download