73b9bdb7c3196804821a03b1983c908a2342b82f0031f056e2cc87149a2137da

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
14/10/2024, 04:24

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General

Target

2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe
Size

60KB
MD5

0d7b3a1febfeb0c7032989b21994d3f7
SHA1

755e466b614767425a39781f64cc5277c54b2fb4
SHA256

73b9bdb7c3196804821a03b1983c908a2342b82f0031f056e2cc87149a2137da
SHA512

315d24762d4b592fe81792e1973e9b496fe5cf3b2916e06fba6911cdfa8e9034097bd78d7e9afed8c119cf33a3c3a14c7f37bda70faa51f4d60519ed3819dee5
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qp:H6QFElP6n+gou9cvMOtEvwDpjCpVXhp

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4452	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4440-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023ba0-13.dat	upx
behavioral2/memory/4440-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4452-26-0x0000000000500000-0x0000000000510000-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	2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_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 4440 wrote to memory of 4452	4440	2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe	83
PID 4440 wrote to memory of 4452	4440	2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe	83
PID 4440 wrote to memory of 4452	4440	2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_0d7b3a1febfeb0c7032989b21994d3f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4440
- 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:4452

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
60KB

MD5
77deaabc2fc0a079170e7d89db6e03e9

SHA1
72507ab5ffb3e42de9ebaf8c329b2cc218a99769

SHA256
8f6e179b77d591d9f6aa019fc48014a2d5e0d9c12288431d00f1f8d35d250cf9

SHA512
727b25ac6f84d67b4d7d5670a4497b3cc3fa453878968882ac19a21eaef0222e7d0bb24f3641870ce0c94569975720589dadc091dab3a23bf77c375990d93744

Download Submit
memory/4440-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4440-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4440-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4440-3-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/4440-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4452-19-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4452-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4452-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download