ea9c9a1ceed6fc853ce32bced2b4b867f5f7a77893fd4fb1657b0f6192df03cc

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 00:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe
Size

37KB
MD5

4ef5b2286e36f73a2d1e6e6a3b1e0e16
SHA1

95faaffc6afe839ea39835653c8ae1414cb7401c
SHA256

ea9c9a1ceed6fc853ce32bced2b4b867f5f7a77893fd4fb1657b0f6192df03cc
SHA512

f1c052525bb5e7298edd29e1693c5491f5be7d0cead067683b55a87aa8ddcf60690aaaede50d3a3d7eaee68b8f930c5ad4ebe19f7833e7b178801302c65672ea
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT67:qDdFJy3QMOtEvwDpjjWMl7T67

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2692	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2772	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012251-11.dat	upx
behavioral1/memory/2772-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2692-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2692-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2692	2772	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe	30
PID 2772 wrote to memory of 2692	2772	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe	30
PID 2772 wrote to memory of 2692	2772	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe	30
PID 2772 wrote to memory of 2692	2772	2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_4ef5b2286e36f73a2d1e6e6a3b1e0e16_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
37KB

MD5
1635c2de6f00e203e79118144ffe2c84

SHA1
c0bfef45cc979d41bf622b9cd50503d14f4cd81b

SHA256
b2686562c599e16d50f7914f3fdb7c6d5cc624a9aad97f6b0f7113399274bc1a

SHA512
f1b8c9ce5f634e5a1ed933b0376448d3ee2db18f902488599a4113d86a8036d0a9bf0f6be2fe02a9f8e27f9a05c9c9607380bd61e13e9781c45114dda4ea774e

Download Submit
memory/2692-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2692-27-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2692-20-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2692-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2772-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2772-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2772-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2772-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2772-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2772-14-0x0000000001E60000-0x0000000001E70000-memory.dmp

Filesize
64KB

Download