945b847b0c8128007b684ce683687cbdbbcaf22de571b07b461e7ba6a82ea21b

Analysis

max time kernel
135s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 02:31

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General

Target

Uninstall.exe
Size

48KB
MD5

9cc4b0b295dde88e04e82fcfe1a6e0aa
SHA1

9bc1029b26593e870d2112073b9c9e043fa8665e
SHA256

01b3137f0e9caf1f7781a2505a7e08e4b19311402bb9419be66c44a5b2b529e9
SHA512

4277640f5f21403d8b0998c2a0d49a11ed228463dd15b11bf3bbf8d9c4cd4872fd6d837c13329792bbd7f5d3297524a71ed838a79753967ab2da595080f9a41b
SSDEEP

768:SoOjbhlc7sUoQnAz3ppOo0QJSHijv5js/wJJQPgd2iZQAm6kRRS+NoJRnOIx:XOPhlosUoAarDX1JJQgdLeAyNZk

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3524	Au_.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral30/files/0x00070000000236c8-4.dat	nsis_installer_1
behavioral30/files/0x00070000000236c8-4.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 3524	1360	Uninstall.exe	91
PID 1360 wrote to memory of 3524	1360	Uninstall.exe	91
PID 1360 wrote to memory of 3524	1360	Uninstall.exe	91

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3524

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4248,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=2152 /prefetch:8
1⤵
PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
48KB

MD5
9cc4b0b295dde88e04e82fcfe1a6e0aa

SHA1
9bc1029b26593e870d2112073b9c9e043fa8665e

SHA256
01b3137f0e9caf1f7781a2505a7e08e4b19311402bb9419be66c44a5b2b529e9

SHA512
4277640f5f21403d8b0998c2a0d49a11ed228463dd15b11bf3bbf8d9c4cd4872fd6d837c13329792bbd7f5d3297524a71ed838a79753967ab2da595080f9a41b

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