b62cace486c317564463a3d7ba8632720aa6f0d296a5fb1c98695354a8c462e3

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 05:56

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General

Target

2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe
Size

93KB
MD5

2c3449992dce67ce90a6cebe4e6059c1
SHA1

34b661a06879e6a53ac06227919cbd6b4eadd1f5
SHA256

b62cace486c317564463a3d7ba8632720aa6f0d296a5fb1c98695354a8c462e3
SHA512

473125ea2436da994129465617f6cefe523842376ca251187a052a54d4349eaea28d0a0b980a794858d04e140c281f8e51a466c7dce2a98d0430ff1fe15ba4e7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01T:AnBdOOtEvwDpj6zR

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	2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2288	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/856-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000600000001e71b-13.dat	upx
behavioral2/memory/856-20-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2288-26-0x0000000000500000-0x000000000050F000-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 856 wrote to memory of 2288	856	2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe	89
PID 856 wrote to memory of 2288	856	2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe	89
PID 856 wrote to memory of 2288	856	2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-11_2c3449992dce67ce90a6cebe4e6059c1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2288

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
feb192ff63a99c8e7222f4fdc241dcb4

SHA1
4ce148e24d06230806933f43e53a05cf33be6aee

SHA256
ad9a54d1192226766e3d6599d4c04b072d470d6d689ab00283071abcb5d530a0

SHA512
9a41e2455d1d27c68c7c270e2f3d4f4d10d58d248eff35361aedc6e05af4aec1331cd4a86eef45d1579ec62e29fa949628883f64d39ed4d1d271391f9c59506d

Download Submit
memory/856-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/856-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/856-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/856-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/856-20-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2288-18-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2288-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2288-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download