156df9312a7949ae08c3aa369e5cec591190d222a1fd77913fa444cde551d2a5

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
05/05/2024, 04:37

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General

Target

2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe
Size

43KB
MD5

944edf8388f3629f649ba1d29d2bfd91
SHA1

583af3bc144880dd0f091d3e1dd2bde4f93d08be
SHA256

156df9312a7949ae08c3aa369e5cec591190d222a1fd77913fa444cde551d2a5
SHA512

6c521f25c103fe5fc2cdf0460a6e063ffbfd8362ecb220627cf3d9fddedf71cc944f81e1d1896886bf64befbc7de85f6af43115f2a236ea737a76f8d17075fc4
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9HY:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000016056-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000016056-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1936	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	2024-05-05_944edf8388f3629f649ba1d29d2bfd91_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 1968 wrote to memory of 1936	1968	2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe	28
PID 1968 wrote to memory of 1936	1968	2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe	28
PID 1968 wrote to memory of 1936	1968	2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe	28
PID 1968 wrote to memory of 1936	1968	2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_944edf8388f3629f649ba1d29d2bfd91_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1936

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
43KB

MD5
fdbda96e6e4783f41bbf202954fccc05

SHA1
a99d8992dbe83d112d727c8d44d603fe0a0acc8d

SHA256
77bbf735f153369e0b75299a1b71d28ad0ee7602488569636ba3212983c8335f

SHA512
e3144e85ab26055dc60c106abf34a306bd886d0d89f9f33708f05ff1a25bd9f9004e6252b5c63e948052bce4ec7ef22629a655406fb1feaeee17c0f779ae758e

Download Submit
memory/1936-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1936-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1968-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1968-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1968-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download