50918409db0209b52a30fcab31cb566d73c772d84fe581212a6e1071f700690e

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 19:33

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General

Target

2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe
Size

79KB
MD5

6526e70e4962e7975fc6c5a3888e2b1e
SHA1

1d1dffa0732a41f4754a9b59151379602e4ed993
SHA256

50918409db0209b52a30fcab31cb566d73c772d84fe581212a6e1071f700690e
SHA512

0462744a0b694dc271fd1fe57abf480a76e112bbd4971dec3e3f46b16702f10683fda16201f8c84149e665e90d90772a838c1a3ae57f91b14c9fa9f4cfcd90c2
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlupU:V6a+pOtEvwDpjvpN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000155f6-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000155f6-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2616	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2952	2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_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 2952 wrote to memory of 2616	2952	2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe	28
PID 2952 wrote to memory of 2616	2952	2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe	28
PID 2952 wrote to memory of 2616	2952	2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe	28
PID 2952 wrote to memory of 2616	2952	2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_6526e70e4962e7975fc6c5a3888e2b1e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2616

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
79KB

MD5
632c4d8cce7db74d8d524aa021a3dd50

SHA1
25cb99c645a21d29015709179185c079142360fa

SHA256
7c12419728486765e982e6f682d57e9047b12e00c18bcb6bd7385b7e1f30994c

SHA512
ce2ab2c6abc44ef4084bc880a6e90b52ad5b0b7175563ed39de34eef9f346258dbfdde11be8d5872bd242899855840704829288840b0fdd9c304692adda1dc23

Download Submit
memory/2616-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2616-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2952-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2952-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2952-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download