f1634a2ef6694bab4b76a02fef5c3e3c224419240cdf0314b4388c395304c8f6

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 09:51

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General

Target

2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe
Size

58KB
MD5

ea0e1999466a00da2216a380c360c51a
SHA1

aa5b3c3bb45646b2c50c8c7ac42b2a6012b76e9b
SHA256

f1634a2ef6694bab4b76a02fef5c3e3c224419240cdf0314b4388c395304c8f6
SHA512

ee805368e9ec07a55e5683f26b7a503cc4a3f31db06ed80e482b7ed0690a64b7199204efd7816ceddd716cb76225f8588334182a723b81d97d9d4de37cb59d94
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt7gY:V6a+pOtEvwDpjvA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1308	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2636	2024-02-12_ea0e1999466a00da2216a380c360c51a_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 2636 wrote to memory of 1308	2636	2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe	28
PID 2636 wrote to memory of 1308	2636	2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe	28
PID 2636 wrote to memory of 1308	2636	2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe	28
PID 2636 wrote to memory of 1308	2636	2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ea0e1999466a00da2216a380c360c51a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1308

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
58KB

MD5
0db04f9298b5f4bab19dc363aeccd693

SHA1
ad0523687abe1463040229fd1e241593fcde4b29

SHA256
b18d1dc7754fc4639988c20c3064282a28bda2ea50041d2c11e7251cf8622d88

SHA512
045226829d68fc232ddb7c9b3d69a7db4320365d3a7d98b794b32f0a97d9ac444c89bf837f147eb345746b3c60f491b24d8503e112e2ca11c158f0ecfa4f26a1

Download Submit
memory/1308-15-0x0000000001CD0000-0x0000000001CD6000-memory.dmp

Filesize
24KB

Download
memory/1308-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2636-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2636-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2636-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download