5a4ec8061f50a0dffacc27707fcb5b93d71c8d546549875347a848997fcbeb0c

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 05:41

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General

Target

2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe
Size

55KB
MD5

bde5e39aff9dba4980d9c67a72b4028c
SHA1

a21a95574cbe963ab8f4c56fd4201776e5274615
SHA256

5a4ec8061f50a0dffacc27707fcb5b93d71c8d546549875347a848997fcbeb0c
SHA512

d0354971cf4091f1ea2d5889ec73f0feeb661c634171a5edb8ddd3da1a92b1f09b0e19bcda18edc0fd3dfd62cbba65a99e84f639dbd3e00814d5b34a9a31c43d
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkVL:z6QFElP6n+gKmddpMOtEvwDpj31ikVL

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1920	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1980-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b22-13.dat	upx
behavioral2/memory/1980-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1920-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1920	1980	2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe	85
PID 1980 wrote to memory of 1920	1980	2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe	85
PID 1980 wrote to memory of 1920	1980	2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- 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:1920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
55KB

MD5
5cc673aabe30f5ecdd8454bd16052256

SHA1
78bea0ce6b6abb5cc7ca1a307d8317839d7bff55

SHA256
f7b267723bda8373d3103a3356c2952861c6ef9c8b424637928c038300002dea

SHA512
115e35f8bc826ae7459f43a9655c4aef8da02e222bd0de85a4c08900e75275370d48eb210c236011f532877a99d525316a18918bb30f138a3b54f16d1868700a

Download Submit
memory/1920-19-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/1920-20-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1920-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1980-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1980-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1980-2-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1980-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/1980-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download