191ceafbc9ea53a4d7a1760ea0c746cc1ee3fd346d919c35f8db3d0a6dc1d82c

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2023, 16:24

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General

Target

383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe
Size

62KB
MD5

383b0742c51b15f8d3a826054c07c9e1
SHA1

407e83c29beacbebfde81af1463c9dbd40020a62
SHA256

191ceafbc9ea53a4d7a1760ea0c746cc1ee3fd346d919c35f8db3d0a6dc1d82c
SHA512

5c77144fe536ef88c18078da53539efa2bb36df79c6c512b5c2a78cc2b9f44fef750bb7801f7edad46435b7d417d29f7626e9c8f96b789116f6bce5304afddbb
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5aFr7YO5:z6QFElP6n+gKmddpMOtEvwDpj9aYaFA0

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4740	asih.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2324-133-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0008000000023207-146.dat	upx
behavioral2/files/0x0008000000023207-148.dat	upx
behavioral2/files/0x0008000000023207-149.dat	upx
behavioral2/memory/2324-150-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4740-159-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 4740	2324	383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe	81
PID 2324 wrote to memory of 4740	2324	383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe	81
PID 2324 wrote to memory of 4740	2324	383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe	81

C:\Users\Admin\AppData\Local\Temp\383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\383b0742c51b15f8d3a826054c07c9e1_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4740

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
62KB

MD5
deb7c105bbcdaf7607ca0521b9941d51

SHA1
356653719477633095c05ed5348e886e7b615e28

SHA256
8bf441f3e680df2e11e9f67e80bb266ebe6b13539307a2c232f5a866db193b3b

SHA512
c95389a9b4539d02e4ed847f2a80e3b8722f52ab7589e5dade53ffde78e56872e7b39058515f8ba345d73b344645ac9d7688af7bdee4ba0d37b116134ef7b73d

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
62KB

MD5
deb7c105bbcdaf7607ca0521b9941d51

SHA1
356653719477633095c05ed5348e886e7b615e28

SHA256
8bf441f3e680df2e11e9f67e80bb266ebe6b13539307a2c232f5a866db193b3b

SHA512
c95389a9b4539d02e4ed847f2a80e3b8722f52ab7589e5dade53ffde78e56872e7b39058515f8ba345d73b344645ac9d7688af7bdee4ba0d37b116134ef7b73d

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
62KB

MD5
deb7c105bbcdaf7607ca0521b9941d51

SHA1
356653719477633095c05ed5348e886e7b615e28

SHA256
8bf441f3e680df2e11e9f67e80bb266ebe6b13539307a2c232f5a866db193b3b

SHA512
c95389a9b4539d02e4ed847f2a80e3b8722f52ab7589e5dade53ffde78e56872e7b39058515f8ba345d73b344645ac9d7688af7bdee4ba0d37b116134ef7b73d

Download Submit
memory/2324-133-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2324-134-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2324-135-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2324-136-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/2324-150-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4740-152-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4740-153-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/4740-159-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download