0ee2f0cac31a255b6d2cd5189228a1f717aa424c2bfc347f9f75cf61b0e3fa80

Analysis

max time kernel
167s
max time network
206s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2024, 05:57

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General

Target

2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe
Size

93KB
MD5

d33220824166feef192edee7df958a38
SHA1

2e75b3734d96acbd60d557ae907c58fefa463c8f
SHA256

0ee2f0cac31a255b6d2cd5189228a1f717aa424c2bfc347f9f75cf61b0e3fa80
SHA512

228a4c5a820dde12f9505eff99e7d1913b72ebfda3c2dca2633541a45c49535fa16423708100496ea388f8c2b44412df53c286028fdec5c9e946e483690115c4
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01t:AnBdOOtEvwDpj6z/

Score

7^/10

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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2856-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0007000000023207-13.dat	upx
behavioral2/memory/2856-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1444-26-0x0000000000500000-0x000000000050F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 1444	2856	2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe	88
PID 2856 wrote to memory of 1444	2856	2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe	88
PID 2856 wrote to memory of 1444	2856	2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_d33220824166feef192edee7df958a38_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1444

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
93KB

MD5
c09d46bb9f313ef4b924ecaa2123d913

SHA1
ff488592068f23402a06276c35d36dd6dba3e967

SHA256
bb124f8fe862fd817c6d1bf61c6b8bb1ec1d7b3e85fe3d264224479f0aaf9365

SHA512
aba11828b3a4064ca58b0a0e4ee7e10d553658654a87d8087744b6cd86370f220ed6140c262f3f175e316a42b68ef909014cb1d76cc90884caff9950a5903b19

Download Submit
memory/1444-19-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/1444-23-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1444-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2856-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2856-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2856-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2856-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2856-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download