84b2eacf23ff79ca2d81a1ff905d9ca23c5eeaf2e9df195db7c3615c4a9fca4f

Analysis

max time kernel
151s
max time network
168s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 09:52

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General

Target

2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe
Size

58KB
MD5

f8708d184ab613226c80a2715e8e4af3
SHA1

e20fcc78028ce77ce7d4c210a1060c911f3eae69
SHA256

84b2eacf23ff79ca2d81a1ff905d9ca23c5eeaf2e9df195db7c3615c4a9fca4f
SHA512

c7bdce7d062ab5498b36f7e764c3be8c0fa42415ae1d3b290ed65ee5995dbd5933462b936feab94cefd334756c8b9a27844856c6324081d139d134ab7f4a6320
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPt547/2VoJ:V6QFElP6n+gMQMOtEvwDpjyaLccVCbH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012240-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012240-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1444	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1668	2024-03-10_f8708d184ab613226c80a2715e8e4af3_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 1668 wrote to memory of 1444	1668	2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe	28
PID 1668 wrote to memory of 1444	1668	2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe	28
PID 1668 wrote to memory of 1444	1668	2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe	28
PID 1668 wrote to memory of 1444	1668	2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_f8708d184ab613226c80a2715e8e4af3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1444

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
58KB

MD5
359a07b603a791c13c304479b5d812e7

SHA1
b5555621d0af127266165e453f4209d635b6962e

SHA256
8c2d75afe52ec37e66a4420bb948467a47562aef8dae74a72ef8051076a51118

SHA512
c4beba1e06751a267a06722deb54e62a5cc6e41a50d1ac2c811004ac4d740d11e9907b8dca5196cea7e668242c2422db9ff16abc36ffab0f27dc072dee7adc67

Download Submit
memory/1444-16-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1444-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1668-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1668-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1668-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download