43cf29fe08a46b2229477aba71080b49947eeaf552ceb80e477f5c90aef2594c

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 03:27

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General

Target

2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe
Size

39KB
MD5

0a314df003a5b758d63516053ce90435
SHA1

ca72001f3d66c6cc523e45a0648410a19cbebf2a
SHA256

43cf29fe08a46b2229477aba71080b49947eeaf552ceb80e477f5c90aef2594c
SHA512

228f51e86b430e883f4f18f9ed5b0feca863317a85387be673563a0211f082d5f9c89688df37ced0bd297ed644145c8593eaf676c5697c3f5dd92919389ccebc
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrA:X6QFElP6n+gJQMOtEvwDpjBsYK6rA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2000	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2144	2024-04-17_0a314df003a5b758d63516053ce90435_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 2144 wrote to memory of 2000	2144	2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe	28
PID 2144 wrote to memory of 2000	2144	2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe	28
PID 2144 wrote to memory of 2000	2144	2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe	28
PID 2144 wrote to memory of 2000	2144	2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_0a314df003a5b758d63516053ce90435_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
40KB

MD5
f9f8b0b546324c0c868b9c52b469214d

SHA1
f6ea92a0bd314086945c54389eb2235d1eaba492

SHA256
9e0d79f528536b56c440e5b86203d506fea603fa3f5f158b1f3c400c8e29d233

SHA512
b2b60498e52ba5a77e64d2eb5209829b4c243440231d7d84853b75e4507244980c1ce70ab7dfe690af8030d732478b79c91b52d1f7eec23f5699d03b78240be1

Download Submit
memory/2000-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2000-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2144-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2144-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2144-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download