1f24eeecf818064d3d869a9b811ab78704e0192d7c8e81609eb08f3ae1a09557

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 23:03

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General

Target

2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe
Size

46KB
MD5

8b903e8f39081095afaaf9f403cc7a1e
SHA1

14ef52d9bcbf6db2a6a95a71dfef2dafb58f4e05
SHA256

1f24eeecf818064d3d869a9b811ab78704e0192d7c8e81609eb08f3ae1a09557
SHA512

b8f999224ef58d3f93debac1b17905c2405b78d855410e79cae4c2ca7c9432e2958b724dccdf3c1abb4ff44ed5c30d6cf5493d21a13a33566f08ef98e464edee
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXckdp7:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225c-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001225c-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2432	2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_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 2432 wrote to memory of 2116	2432	2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe	28
PID 2432 wrote to memory of 2116	2432	2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe	28
PID 2432 wrote to memory of 2116	2432	2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe	28
PID 2432 wrote to memory of 2116	2432	2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_8b903e8f39081095afaaf9f403cc7a1e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
46KB

MD5
45b1cc4bb02b241b339da16d026e23f8

SHA1
d8f1f47674dcdfc50609fccca4eac849f961f986

SHA256
8b780e62c81bce0b14e83722a6cc54c578c2f5cf704f3e4ffae564f8880cdb5c

SHA512
863495c2ef2162d414e47509ec5341ce04b670071d13767d68defda7bd49ce73769c120c422f810eb086e58e048e718885357cfd4469382dc6503684f19d110e

Download Submit
memory/2116-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2116-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2432-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2432-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2432-6-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download