41b094d9133bbccc221dc2701539b2379391050bb37cff498b543dd0dfd766e9

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-05-2024 00:45

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General

Target

2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe
Size

47KB
MD5

3ea2ae1a44fe8265a4d30a61b8740ef2
SHA1

d846b1bfdee274a46ca735430557feba8ff34270
SHA256

41b094d9133bbccc221dc2701539b2379391050bb37cff498b543dd0dfd766e9
SHA512

8cf8ce9ecb98093c3c74bf4c91e70dd5d33c1162d89e231d5a8cb45be9eda632a6e08c1bce843ef66f806759256e8e6d1c711160431d6066e0ff139744fced9d
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsBwWZ:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3WN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000143fa-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000143fa-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2796	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
856	2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_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 856 wrote to memory of 2796	856	2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_3ea2ae1a44fe8265a4d30a61b8740ef2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2796

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
47KB

MD5
11d39ca38d5971e023a7ae57108a2755

SHA1
306f5c7b20d6db294e3b2684870b91eb5fa2232e

SHA256
886f0ae56629c56af74f176c166c2bef9d60d12a9facedd81bb6e40428cf2c91

SHA512
fbe4c0e09f5fbf63355ab102211202c07a3c360d31e19515062cf29ec5ac4de4504c771c69d2b7ecf1ee65e36d44c274fda3c7ba6bdd1a618ea21b598cfd14b2

Download Submit
memory/856-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/856-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/856-2-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2796-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2796-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download