f7d4fb78ed65eb48f52200c873231d32fea42e8b1b1b8c3aefb87ecb170ad1e6

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
08/03/2024, 05:42

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General

Target

2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe
Size

95KB
MD5

42f6e8941ac9515bb216944966b56723
SHA1

691637c294f472affcae15f9a9b037b5db509ab5
SHA256

f7d4fb78ed65eb48f52200c873231d32fea42e8b1b1b8c3aefb87ecb170ad1e6
SHA512

ca9d2ee22a0f79e2451af4c4e95216b0936908768264d8d142aaa101d7b9d1461342fd47e63c3ca32030f829672ccea36ea283bce73430fc80442ac35179a55d
SSDEEP

1536:Z6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNC4wxy:Z6a+pOtEvwDpjtzB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015f01-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015f01-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2176	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1328	2024-03-08_42f6e8941ac9515bb216944966b56723_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 1328 wrote to memory of 2176	1328	2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe	28
PID 1328 wrote to memory of 2176	1328	2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe	28
PID 1328 wrote to memory of 2176	1328	2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe	28
PID 1328 wrote to memory of 2176	1328	2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_42f6e8941ac9515bb216944966b56723_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2176

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
95KB

MD5
cc76a0ab19ed0e51e777911eda3ce75f

SHA1
47b74161a922610c016da353e91d9ede48baa5b7

SHA256
dc2785d46dcf81733a86065bf770bdc42f16bff1fbca861bcafea9e1b4c9952f

SHA512
5a037ad7805aa7a3d888d5425de8f01f5ed4e5e21f795d632945222ce4db6b1e647d5e9de008a0315641f48213631c1222b37d71610793dcef94e1da30440cba

Download Submit
memory/1328-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1328-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1328-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2176-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2176-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download