4be68960127aa390bad84ddf942b84ace983284cebd5db10fd602d5db0f2d619

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2024, 02:55

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General

Target

2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe
Size

92KB
MD5

fff00bfda98949d46034c6698f635a5c
SHA1

7d4c7c695915860126cc745c070de7ebd11ce9a1
SHA256

4be68960127aa390bad84ddf942b84ace983284cebd5db10fd602d5db0f2d619
SHA512

1e1370fa3c0be03611f079e1d484dd585c67a4d237b68170543c873293b976fd83c00bd8793696e6a62b2a231188bf284d0a324bc8b7081fef72d2187859bf57
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAe4:n6a+1SEOtEvwDpjYYvQd2Pd

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4952-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b81-13.dat	upx
behavioral2/memory/4952-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2788-26-0x0000000000500000-0x0000000000510000-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	2024-10-18_fff00bfda98949d46034c6698f635a5c_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 4952 wrote to memory of 2788	4952	2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe	86
PID 4952 wrote to memory of 2788	4952	2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe	86
PID 4952 wrote to memory of 2788	4952	2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_fff00bfda98949d46034c6698f635a5c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4952
- 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:2788

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
92KB

MD5
2eeab410ab9274b5cab7ceee04b27a52

SHA1
cde87e03b98299fa9ae4dc9ba8e58294984b19f8

SHA256
8688975b3bd3376cbc23b1d01698625f0f4a6494eb794d1a7386955adc7687a3

SHA512
6a93f3b90fc51b7e08a41c7f32a67d85e2ceeba2fbee23818d11e40522f4d24fe3dd947c3e53a46bcabb8a32afafe0b0e4a90e25dc90b771474ec05a026f1905

Download Submit
memory/2788-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2788-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2788-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4952-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4952-1-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/4952-2-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download
memory/4952-3-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4952-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download