65c382255951a81ac799c422fdc064128aad5b736de0366fdc2ab69e50d4e380

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 13:36

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General

Target

2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe
Size

71KB
MD5

85cbce7f89a453f6e3e8eb722db49f83
SHA1

90d00b69950fd35c28c18d9d693bc2e263442fd2
SHA256

65c382255951a81ac799c422fdc064128aad5b736de0366fdc2ab69e50d4e380
SHA512

cc7d355b1c11fc4bd7d56d62fc96010e29304b23d6aad98bcdac514bcaec72013edc3a9a8751b31c0a81dacd9390c919574270e4ba4db0011fa2dd33a3bfa7f7
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO6:DW60sllyWOtEvwDpjwF85J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2292-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012339-11.dat	CryptoLocker_rule2
behavioral1/memory/2292-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2976-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2292-13-0x0000000000650000-0x000000000065B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2292-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012339-11.dat	CryptoLocker_set1
behavioral1/memory/2292-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2976-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2292-13-0x0000000000650000-0x000000000065B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_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 2292 wrote to memory of 2976	2292	2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe	28
PID 2292 wrote to memory of 2976	2292	2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_85cbce7f89a453f6e3e8eb722db49f83_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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
71KB

MD5
d6b6b512aef874b78121fa0a33b643c4

SHA1
825358dcb4f1c223d1a4972b37a33eefda812907

SHA256
75fa93162110dd02e11bcc45ad5dc2a1c35d0b9a55d5ead8f97d32a2248f5ecf

SHA512
8970dbb98952a26c4057f8e7912191d6cf95f32d4de1071d0fc02c0abe1331527af549588ce2b4702f8298a9f8835c089645d185192b5c5b95f99d2f2e105fb7

Download Submit
memory/2292-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2292-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2292-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2292-3-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2292-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2292-13-0x0000000000650000-0x000000000065B000-memory.dmp

Filesize
44KB

Download
memory/2976-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2976-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download