025429a2ca83224ae85ae0e29557826961d176d2a07b1df269dfd15df0cefe08

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 03:37

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General

Target

2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe
Size

38KB
MD5

57a2103c73f036c3c4cc34d097a097ef
SHA1

c60a35dd32ca735bdd5a827f9017f9b39112d21f
SHA256

025429a2ca83224ae85ae0e29557826961d176d2a07b1df269dfd15df0cefe08
SHA512

d5f1ae2a2abb422937800bc2b2f91e6147fb8b4f410c1f2c96faae1daab243435943e8c65e1fdf4d62c893c4faaf047a2e63458f46940def3c16f0697cd38719
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBjb1iIJSFlWvmv359:X6QFElP6n+gJQMOtEvwDpjBngHnZ3z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2704	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1808	2024-04-23_57a2103c73f036c3c4cc34d097a097ef_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 1808 wrote to memory of 2704	1808	2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe	28
PID 1808 wrote to memory of 2704	1808	2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe	28
PID 1808 wrote to memory of 2704	1808	2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe	28
PID 1808 wrote to memory of 2704	1808	2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_57a2103c73f036c3c4cc34d097a097ef_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
38KB

MD5
42fce37855b95cee0771a1b693141aeb

SHA1
d2de3ecffe44e292dd74164f52d02ad304df5107

SHA256
9274319fd8d032f381f4c4ccc83920d1b971d4104a8e4a627e83c1be6b606a77

SHA512
ff17ac7cd937aa13f61049c5c44568b1496b0eb75630f2a13e2c5b18b10f93e51c6c3dee2ba65ec50cdaa91a25275043d1e3710568f0c6afdc833d543f8b6bcf

Download Submit
memory/1808-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1808-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1808-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2704-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2704-17-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download