3c4fa46e5c205e763fa0f067362f4cd8d8fecc1b5d7cddf07f4cfcd331c8249b

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
29-04-2024 22:02

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General

Target

2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe
Size

39KB
MD5

1d7f98d1912a9d8a99b90a19a46d2593
SHA1

8e8687385d6e196701ae22565b31aa10ca7381a9
SHA256

3c4fa46e5c205e763fa0f067362f4cd8d8fecc1b5d7cddf07f4cfcd331c8249b
SHA512

8ad89c4fba83f3621edb9a7a012f09e5f39257073b610e9c73ca71d61b26660a07e5a24a9062d193a8ee21188a377d4a438f3638fd1a299daff77caa6ced7809
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axZmGBq:V6QFElP6n+gMQMOtEvwDpjyaYa/mGq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001444f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001444f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2544	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_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 2080 wrote to memory of 2544	2080	2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe	28
PID 2080 wrote to memory of 2544	2080	2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe	28
PID 2080 wrote to memory of 2544	2080	2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe	28
PID 2080 wrote to memory of 2544	2080	2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_1d7f98d1912a9d8a99b90a19a46d2593_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2544

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
39KB

MD5
51e5abb28eea9287ef116b4675fb3f57

SHA1
ccae6d9aa150b0de30eaf5fd7f2a9bb390f0d230

SHA256
1774240f4713438ca7618281962ae52fcdde223bd342919239832cdd9cf07505

SHA512
e3989fdb71a98aa5db10bb56cb9ba99d3a27a60818cf08efffc516adad9878695d84826bfb6378582a369541f76701a3433d6d54f4dd43ddfd166761aa2231b4

Download Submit
memory/2080-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2080-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2080-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2544-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2544-16-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download