337636a582057f56ad523e65132d87aa65ab2decc28f5ccbd788e1b723fec5e4

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2024, 07:28

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General

Target

2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe
Size

62KB
MD5

626d72d9d7b098121b8e0c62729f90e4
SHA1

595c063043072002074be080e47d72c7e3ca2def
SHA256

337636a582057f56ad523e65132d87aa65ab2decc28f5ccbd788e1b723fec5e4
SHA512

783352a59df6784ea8b9ee3513f31a5a95e35698951e1888d57b7acd9714f91de80c6ccb5f56cb5acfdecec00bb6667e35131dcc043435bda3f0899b5da7047e
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhA:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhA

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4220	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3176-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023488-13.dat	upx
behavioral2/memory/3176-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4220-26-0x0000000000500000-0x0000000000510000-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	2024-10-04_626d72d9d7b098121b8e0c62729f90e4_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 3176 wrote to memory of 4220	3176	2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe	82
PID 3176 wrote to memory of 4220	3176	2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe	82
PID 3176 wrote to memory of 4220	3176	2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_626d72d9d7b098121b8e0c62729f90e4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3176
- 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:4220

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
62KB

MD5
a5dff39cd678503a25edde20d5441f5c

SHA1
506507523cd18f9b9f899d6e4597924004141d94

SHA256
0f382ebc2554e64772b0868a210f0d86a425fad36b53e831e5640e70c433160e

SHA512
6d1fb7941a1e81e8a6808aea15392ff910e1f935c40cca36ae7ba3eddc72cdb9087c0ae1a4b1c21445711c12bf341c01dbee944ec02ed64ad42cd882396fa23a

Download Submit
memory/3176-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3176-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3176-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/3176-3-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3176-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4220-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4220-20-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4220-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download