5dd5fce57a50826618d6d0d0dd09001f010753447cf1edaaec79207a7b729700

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 12:10

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General

Target

2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe
Size

93KB
MD5

a1ba080b8025d9373963cbe3b5fcfad7
SHA1

6408c33aa87130089f8e49312041a0e627a23bd7
SHA256

5dd5fce57a50826618d6d0d0dd09001f010753447cf1edaaec79207a7b729700
SHA512

2f1ce37adc825a551c100a7d90784fbf0a925c7d7bef3e809fd7d1d71c83d5e17f0ec705e049417b53e6cb4020df6b1185871e4034c8fbef724bb78d0186b7b3
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCCA:26a+2OtEvwDpjtzO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1072	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1972	2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_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 1972 wrote to memory of 1072	1972	2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe	28
PID 1972 wrote to memory of 1072	1972	2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe	28
PID 1972 wrote to memory of 1072	1972	2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe	28
PID 1972 wrote to memory of 1072	1972	2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_a1ba080b8025d9373963cbe3b5fcfad7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1072

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
94KB

MD5
e8ad7707afe9f936d15c63a8bd021a1f

SHA1
31e23cc3a222cecf1829ef1fe8c8b437b45365b3

SHA256
fcc6d345344867a28a1c6805731d6e745041467864e1db7977fbc9969b13a1bd

SHA512
698145599fd0cfab622c4f6ecc1466896043bb512dcfd21ebd2773952511cffed9a685f5de4ce0051aec4aae46851bf17cb7d13296556c251b0a95c02b727008

Download Submit
memory/1072-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1972-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1972-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1972-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download