23ea87aa549f2fb1cc9b504a5abc5a7243fe57194c84a21231c75dd3e2aed2c7

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 03:53

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General

Target

2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe
Size

92KB
MD5

9f69269fd490a58348b01a2f643183ed
SHA1

f6bbce35ee108d86f724ce431880a56eeeb1cc66
SHA256

23ea87aa549f2fb1cc9b504a5abc5a7243fe57194c84a21231c75dd3e2aed2c7
SHA512

5141aaf2e6326e229327805a9e49939ee08f46f570c88d63cfc2bf6e28cdab9179f43b379de055b21ef7e932b10f152a53ab4b115f2f1239e9e8b0b72afd189d
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAeC:n6a+1SEOtEvwDpjYYvQd2P7

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1836	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1820-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b26-13.dat	upx
behavioral2/memory/1820-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1836-26-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 1836	1820	2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe	86
PID 1820 wrote to memory of 1836	1820	2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe	86
PID 1820 wrote to memory of 1836	1820	2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_9f69269fd490a58348b01a2f643183ed_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1820
- 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:1836

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
56749bba1c708dd7809b181696fb56d2

SHA1
780b632d98f2c88ad14353cb1258811a61b376ef

SHA256
e0c8f1a8092f06c032933fae0548929699a29b25599b618f59f2b4fab0aec1b8

SHA512
1947fbb085a2f7ba1c4181fdd60e1d8d78cec1352ad66ca54f25e7829327b0a3febf935b8a39113349e75fd4aff017eea7f24acf0dbac1a7474fac1ee31c8382

Download Submit
memory/1820-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1820-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1820-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1820-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1820-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1836-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1836-25-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1836-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download