a558e92ab010954a5b3a6a6e1b8b0e3b3bcbba4c867fde47bad9efc1642a6ad1

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 09:54

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General

Target

2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe
Size

82KB
MD5

ff51a1afb2284154a1d5366fe81e3e5e
SHA1

5713bf8cfd45326fe3a540de62d771b32657a5fc
SHA256

a558e92ab010954a5b3a6a6e1b8b0e3b3bcbba4c867fde47bad9efc1642a6ad1
SHA512

d052832f8e121369d3c7e2b1e2a7c641f9f524ac7ca3eaa51ea6e0daf314fed2770804b99d12d6bd3846a9a74a24520e6d474e5089ddf6870645294be3bd82d3
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLg:V6a+pOtEvwDpjvpV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2236	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_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 3016 wrote to memory of 2236	3016	2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe	28
PID 3016 wrote to memory of 2236	3016	2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe	28
PID 3016 wrote to memory of 2236	3016	2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe	28
PID 3016 wrote to memory of 2236	3016	2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_ff51a1afb2284154a1d5366fe81e3e5e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2236

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
82KB

MD5
1e9bc54411f4b117324e8dd15cae4a88

SHA1
88ac7e91c8c11376a11088c24ea776c7725fe507

SHA256
07de93fe4484f50aa0b1ecfb63e19322e7c46b314a9da05294fa85bb8a4e0bf8

SHA512
581c4d12481d44d41bde3b9ffc9b3dd3bb8316d507cd7d67b6cd37b3776fb115c1bba6814041f117a38e3eed48e0d66a43a8949be919aa635d5dacee41973399

Download Submit
memory/2236-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2236-16-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download