3fac807292eefb3f79e213b5b490c3e69198a434c570749d596b209d71248b91

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
02-10-2024 04:28

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General

Target

2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe
Size

89KB
MD5

84489f9d240a47b90d0b78eff2e2f0ab
SHA1

a1206b5adba700254989782c5fb7a664047f2056
SHA256

3fac807292eefb3f79e213b5b490c3e69198a434c570749d596b209d71248b91
SHA512

6522e365afb80f9458fe67b21d4b55ba70fa3fb50926faca744cf444dfb16f0b3059492ae5af7f8ac2b98faedb707a9455d47d1dc29643f094cd4c219a07d97f
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpP:AnBdOOtEvwDpj6zM

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1092	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4944-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000800000002345a-13.dat	upx
behavioral2/memory/4944-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1092-26-0x0000000000500000-0x000000000050F000-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	2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_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 4944 wrote to memory of 1092	4944	2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe	84
PID 4944 wrote to memory of 1092	4944	2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe	84
PID 4944 wrote to memory of 1092	4944	2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_84489f9d240a47b90d0b78eff2e2f0ab_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- 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:1092

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
90KB

MD5
2d37c1f4404b821f04d3347b482a5871

SHA1
ce25617402d8960ae65c7ab6d28850b18bbcc278

SHA256
f1d6676bea55dae9d0a692b43f968707f0ac5ddfb51e0ae85bc07366a98e62e0

SHA512
7b1d29fe7b22fc59d440e367bf2d1e5693e7df62236846ca9e0689b31b7747b237273381a1310c4db7723b0b109bc72c5ca980ef7c7aa69fd2028102a5407ee7

Download Submit
memory/1092-20-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/1092-19-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1092-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4944-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4944-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4944-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4944-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4944-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download