45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b

Analysis

max time kernel
71s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19/10/2022, 16:30

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General

Target

45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe
Size

248KB
MD5

9247ad13749929716a66eda778c88540
SHA1

67a20e6651841a5e0067a2ce6b925df9b4060cc4
SHA256

45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b
SHA512

22afaaa99d181a913449a37f4d1cef8e84b78420b844a2ec466da22f05bf2dfb1ba76fbfede3439934fbef1c8be1fb11cff367d2f9f6a59866ad525416f96ace
SSDEEP

1536:BHdzhnsTe/Koejg1bykBiMTKWNkTXCoSGbFtBu8cP/a6zm8jeR2qeBgsetxAA27n:ldzRsirqgAkbKW0rbFDSy0tVVet6A2Q2

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4664	killa.exe

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\killa.exe	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe
File created	C:\Windows\killa.exe	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4664	4280	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe	85
PID 4280 wrote to memory of 4664	4280	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe	85
PID 4280 wrote to memory of 4664	4280	45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe	85

C:\Users\Admin\AppData\Local\Temp\45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe
"C:\Users\Admin\AppData\Local\Temp\45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Windows\killa.exe
  "C:\Windows\killa.exe" 2C:\Users\Admin\AppData\Local\Temp\45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b.exe
  2⤵
  - Executes dropped EXE
  PID:4664

Network

MITRE ATT&CK Enterprise v6

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:\Windows\killa.exe

Filesize
248KB

MD5
9247ad13749929716a66eda778c88540

SHA1
67a20e6651841a5e0067a2ce6b925df9b4060cc4

SHA256
45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b

SHA512
22afaaa99d181a913449a37f4d1cef8e84b78420b844a2ec466da22f05bf2dfb1ba76fbfede3439934fbef1c8be1fb11cff367d2f9f6a59866ad525416f96ace

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C:\Windows\killa.exe

Filesize
248KB

MD5
9247ad13749929716a66eda778c88540

SHA1
67a20e6651841a5e0067a2ce6b925df9b4060cc4

SHA256
45422a73d79f39c9962cf634929cca9f0a187fcc5a5c51374c461ba4058a789b

SHA512
22afaaa99d181a913449a37f4d1cef8e84b78420b844a2ec466da22f05bf2dfb1ba76fbfede3439934fbef1c8be1fb11cff367d2f9f6a59866ad525416f96ace

Download Submit