735cc58b7c3b91c709cea968590331f09ad22609bfdecde5a4240298d23ec135

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 01:25

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General

Target

2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe
Size

47KB
MD5

027a869f1c844963bb0135f17c8c9ed6
SHA1

4e9cd7de12d6792451b158445980716cf7c0e763
SHA256

735cc58b7c3b91c709cea968590331f09ad22609bfdecde5a4240298d23ec135
SHA512

75de97f0b641ad1a7b7f40a3f525c6026094dd342aeb1a5395c111eaedbb10311588e18ad1b41501678059c1c39dbd237e26dc46918a1853f7c2d713b5fda8d4
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556yPRZ0h:X6QFElP6n+gJQMOtEvwDpjB0GIWvPRa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122b8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122b8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2092	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	2024-03-13_027a869f1c844963bb0135f17c8c9ed6_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 2344 wrote to memory of 2092	2344	2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe	28
PID 2344 wrote to memory of 2092	2344	2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe	28
PID 2344 wrote to memory of 2092	2344	2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe	28
PID 2344 wrote to memory of 2092	2344	2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_027a869f1c844963bb0135f17c8c9ed6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2092

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
47KB

MD5
d06954dded521579d4157ea670a63f98

SHA1
04c6693bcefc74a93ab815c41f52c732616d4029

SHA256
c22437db6ba17a1544db47540fffa5bc5af019b113673e0aaba687d87c1dab1c

SHA512
8108cdb4ec09625f0bf761a641411c965be0fe52211f6eeb7ef3d0281cd00eded470c2b12fc767c19e2ecd2d82f70864ae09fdd15a262e35a425670302a5dae3

Download Submit
memory/2092-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2092-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2344-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2344-7-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download