92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
449s
max time network
454s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
03-06-2024 18:16

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General

Target

KmInstall.exe
Size

565KB
MD5

7383be3a30f5051b37cc238742745a3c
SHA1

4e09e119d95fc52c0675614c31d01ecbc7254e7e
SHA256

43097228487eca0837f4e5d66cfc0e3bc4c0bdbc62151eab8ef8cf3ddccb122a
SHA512

430bb6580f0e22fc594a141fe6ff7646adcc286290cc5609fed1cbe1ce17798505caba38efbf65365b9f6ff26f28589485a0aef2693fe85bfebeb5437fc2da8f
SSDEEP

12288:g4lg5QBgZfKSGDOiYZ5qKi4y9OwRtFalbOVE6:g1ANDOiYZ51Lw3FZE6

Score

5^/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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	KmInstall.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3168	KmInstall.exe
3168	KmInstall.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 100	3168	KmInstall.exe	79
PID 3168 wrote to memory of 100	3168	KmInstall.exe	79
PID 3168 wrote to memory of 4996	3168	KmInstall.exe	80
PID 3168 wrote to memory of 4996	3168	KmInstall.exe	80

C:\Users\Admin\AppData\Local\Temp\KmInstall.exe
"C:\Users\Admin\AppData\Local\Temp\KmInstall.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Users\Admin\AppData\Local\Temp\KmInst64.exe
  "C:\Users\Admin\AppData\Local\Temp\KmInst64.exe" API 0 KmInst32{E4068481-F736-4F81-8202-2E33C70FBE67}
  2⤵
  PID:100
- C:\Users\Admin\AppData\Local\Temp\KmInst64.exe
  "C:\Users\Admin\AppData\Local\Temp\KmInst64.exe" API 0 KmInst32{E8803F57-F4CC-41C6-8C16-F53580A80C08}
  2⤵
  PID:4996

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\bin\Netviewer.exe

Filesize
1.4MB

MD5
001b1c0ab1b83b50f8e0a35905efe3a7

SHA1
537cd4c50692fae470e730259afd722656116a54

SHA256
3db384f5ae0647ba7fe27b28b1f5b299551dcb911e947577ed1bb7c493595d45

SHA512
ec25976f09512745cf4a2d848d846b808a2f2bcc6103d78a62069a55303b6c1e2fa299659d46d692bcc43492bb0a26c4872cac919200347b9b21c21e3ca0bd30

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