e0a50bb0ea787af8f588f419b7274827d670733b0d68be7aee48e3566e55702e

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/09/2024, 03:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Uninstall.exe
Size

55KB
MD5

b229fb8e3c8827a8120f3dea24eb3949
SHA1

acb3d677502bd0d4aae423eb7b0781f19ebc879a
SHA256

d4e1d092357f19838eebdce6d6b886f2a2dbf7bb8db21e8a0e898136ddec5a29
SHA512

8c5fb8d39f8146db8ae101035a192d86497d80fc08c699ac5e1d3505fa9bda39a69756cce0414727363b1aec12f0f204237ed27417a6e80c8191c9e761b7aba3
SSDEEP

1536:BQpQ5EP0ijnRTXJgVkq3yhp95fH4F6oSf:BQIURTXJSMhp/Hpf

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2748	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2096	Uninstall.exe
2748	Au_.exe
2748	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
behavioral17/files/0x000500000001a41c-2.dat	nsis_installer_1
behavioral17/files/0x000500000001a41c-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2748	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2748	2096	Uninstall.exe	30
PID 2096 wrote to memory of 2748	2096	Uninstall.exe	30
PID 2096 wrote to memory of 2748	2096	Uninstall.exe	30
PID 2096 wrote to memory of 2748	2096	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2748

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\nsd75DD.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nsd75DD.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

Download Submit
\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
55KB

MD5
b229fb8e3c8827a8120f3dea24eb3949

SHA1
acb3d677502bd0d4aae423eb7b0781f19ebc879a

SHA256
d4e1d092357f19838eebdce6d6b886f2a2dbf7bb8db21e8a0e898136ddec5a29

SHA512
8c5fb8d39f8146db8ae101035a192d86497d80fc08c699ac5e1d3505fa9bda39a69756cce0414727363b1aec12f0f204237ed27417a6e80c8191c9e761b7aba3

Download Submit