e2e322c0457fc159a766450f4f03b5f049a2fbe1043912758f4df589dd9d2088

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
06/10/2024, 01:23

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General

Target

2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe
Size

40KB
MD5

dd0a0bc8e49cf6a2cc8c975685f3167f
SHA1

b964639c02d078ae8e17b71921d777371eacb3f2
SHA256

e2e322c0457fc159a766450f4f03b5f049a2fbe1043912758f4df589dd9d2088
SHA512

46c7a014eed716db6fd201d609a8d9c08d5ec64f5dfd329eaf4400b74da57259a2f6aa5804ac3cc8b75e5c99f25f9401cee925cabfc73afc1e7bc8b0c7173704
SSDEEP

768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWRiH:qTJu9cvMOtEvwDpjppVXzRi

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1636	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/208-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0009000000023455-13.dat	upx
behavioral2/memory/208-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1636-27-0x0000000000500000-0x000000000050F000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 1636	208	2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe	82
PID 208 wrote to memory of 1636	208	2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe	82
PID 208 wrote to memory of 1636	208	2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_dd0a0bc8e49cf6a2cc8c975685f3167f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:208
- 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:1636

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
40KB

MD5
846dbaaf31e992dad7d75318d2743f71

SHA1
bd4596a0e10d29e3553512a7233eb6847b9424d2

SHA256
07e03243271b4576068204a7376476b956b93509d7aca2a062681a205d0d67ca

SHA512
bfb78ceb2f5b9153abc7ff7f882acc529bd224bb445b856f24c39f8a4e5e0789ec638348666245ab54719236a304ab7426f62f09d4a0192470b584f3c805e596

Download Submit
memory/208-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/208-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/208-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/208-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/208-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1636-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1636-21-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1636-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download