19ba3118b05754a0f08075947eaa3320fa7dd76d75eda30f955de3524e284820

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 02:55

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General

Target

2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe
Size

59KB
MD5

ec00599817124cd3efeb72751ebe7bc9
SHA1

7762fb06b6fe0fbfc579177e1cf59cc7719b0188
SHA256

19ba3118b05754a0f08075947eaa3320fa7dd76d75eda30f955de3524e284820
SHA512

4de667211303b259c7808de44c82832d1a256deb455aed5a1a7f1d927bbf90420056aac0ac7a0ac3c80b16b4615731a4e1b1da7262c0f8bc1a08369d8e68140e
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5ax+N+:z6QFElP6n+gKmddpMOtEvwDpj9aYaF

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4180	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1916-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023457-13.dat	upx
behavioral2/memory/1916-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4180-26-0x0000000000500000-0x0000000000510000-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	2024-09-15_ec00599817124cd3efeb72751ebe7bc9_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 1916 wrote to memory of 4180	1916	2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe	84
PID 1916 wrote to memory of 4180	1916	2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe	84
PID 1916 wrote to memory of 4180	1916	2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_ec00599817124cd3efeb72751ebe7bc9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- 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:4180

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
59KB

MD5
caefdd9b46536d9736f0e8996f03f3db

SHA1
14da0497ad95a40240e0bd04df9be9218c0236ed

SHA256
dd780145456cd3a7ab4083e8c3353d57214e77edc8911d27c184a6b666e29f1a

SHA512
167a44d4d4220a4b28664b3ab73a3fd10c13e1f30e882550cfd9ab420d5c6d11a9b54b5e2fff1fc966b26e7bd177ddbc5653e1527e81a5ace718716cee9deb28

Download Submit
memory/1916-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1916-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1916-3-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1916-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4180-19-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/4180-20-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/4180-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download