64bf0352a9de92423c6e3f24e886e86365ea3330ec118b2ffe5a8b8f0128203b

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:13

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General

Target

2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe
Size

28KB
MD5

f17a03a3009035502e26a03827cfd1b6
SHA1

b767ec4f1b7503fb0f7b25d29543c2327d645b1d
SHA256

64bf0352a9de92423c6e3f24e886e86365ea3330ec118b2ffe5a8b8f0128203b
SHA512

c5a54de964381f8b889869172a48a8b4abba1a5ebafb13a8e021c5160b969c88f8af5b6bca9537e0311778c02baecfe0a4389bed7cf624049a35c21647cb7ca1
SSDEEP

768:jOb2gOo0mw18ae8MrQRN7DctOOtEvwDpjQ:jKUog898rYMOtEvwDpjQ

Score

7^/10

discovery

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4136	asih.exe

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	2024-10-31_f17a03a3009035502e26a03827cfd1b6_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 1700 wrote to memory of 4136	1700	2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe	84
PID 1700 wrote to memory of 4136	1700	2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe	84
PID 1700 wrote to memory of 4136	1700	2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_f17a03a3009035502e26a03827cfd1b6_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1700
- 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:4136

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
28KB

MD5
6f1ff35968542aabc89b8de24714a8b5

SHA1
526af8b27dd91e1feaa30150119fb30496943b50

SHA256
0009a6c91e4bd1f841fd3157fc0812f0102d7f4395b025608855ba48e724080f

SHA512
bf8e04ea5f87444791f33385b7186d8b2b8f902508f1743f96cf559d8823c759346c594f109f726c557d297a86af37c28457fe430d8041e31b45409e64ddc6a0

Download Submit
memory/1700-0-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download
memory/1700-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/1700-2-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/1700-3-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/1700-18-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download
memory/4136-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4136-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4136-27-0x0000000000500000-0x0000000000514000-memory.dmp

Filesize
80KB

Download