fad6c45adf54eeee4384ca18eff2a5e5a4ebb015d48134085087d29c5f8567ca

Analysis

max time kernel
143s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 05:59

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General

Target

2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe
Size

119KB
MD5

a316597c3e22e2c5364321435acd9deb
SHA1

faf51e34d86bb082b242fd1853117ee597a1a816
SHA256

fad6c45adf54eeee4384ca18eff2a5e5a4ebb015d48134085087d29c5f8567ca
SHA512

818b4413ddf9b6983a49ee1a0d338e0041baae0330ff1b81c5b127e4bb0d2d757f593a77334e74a80f5c6c63a6ff5b76cbed662cd22cca6386ec17238b52f1e4
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgpwqWsviOf:z6a+CdOOtEvwDpjcza

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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1356	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3252-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0006000000023230-13.dat	upx
behavioral2/memory/3252-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1356-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1356-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 1356	3252	2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe	91
PID 3252 wrote to memory of 1356	3252	2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe	91
PID 3252 wrote to memory of 1356	3252	2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_a316597c3e22e2c5364321435acd9deb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1356

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
119KB

MD5
db4d1c9255ad87a4b0345f736470655b

SHA1
f7a2e502a7053dd6a3fe80a0c9e957368bf9b131

SHA256
140260644350c4ab624ba558c5ed348e648274c71554a2ada756df4082bbe9ea

SHA512
ac0099ccdc71beffe6e9b26d551673c27bfce9dbb08324baf5538df6b4456876d7b4dfc3c169bcb8359aac82a1c9462e5c3cdee48718ca807ccc4890ea7d9d79

Download Submit
memory/1356-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1356-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3252-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3252-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3252-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3252-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3252-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download