b6251f402464c488e25deb7fe3a2c5aeea4376b6cf51173a7bb2ec5498c5cb29

Analysis

max time kernel
92s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 15:39

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General

Target

Uninstall.exe
Size

123KB
MD5

547babef61d913ab1a8ab5391fb65195
SHA1

0004077c7679e5b7fb9cdaeb842ca7c631d0f09f
SHA256

2bf784a7ba86703a5317b656312eac2a18242cc1492b7d5d2eb8b0ac797491ee
SHA512

498f154205794a709ba39aea766d322c300aeee401a104288182cdf731873a374e6ab77e37b0e4227e6f195286def90ea674be33917402e5e33d8aa3b143badb
SSDEEP

1536:HpgpHzb9dZVX9fHMvG0D3XJcnGpbeGLwDg1V/0H1msZ+bpualJf23lsb2G:JgXdZt9P6D3XJhpKG0cz/WmBO3ab2G

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4940	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
4940	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
4940	Au_.exe
4940	Au_.exe
4940	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
behavioral20/files/0x000b000000023b84-3.dat	nsis_installer_1
behavioral20/files/0x000b000000023b84-3.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 4940	4684	Uninstall.exe	84
PID 4684 wrote to memory of 4940	4684	Uninstall.exe	84
PID 4684 wrote to memory of 4940	4684	Uninstall.exe	84

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:4684
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4940

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\nsjAA5A.tmp\InstallOptions.dll

Filesize
14KB

MD5
325b008aec81e5aaa57096f05d4212b5

SHA1
27a2d89747a20305b6518438eff5b9f57f7df5c3

SHA256
c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

SHA512
18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

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C:\Users\Admin\AppData\Local\Temp\nsjAA5A.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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C:\Users\Admin\AppData\Local\Temp\nsjAA5A.tmp\ioSpecial.ini

Filesize
595B

MD5
ec0c2c508c28f4757dce4ad9db7809f7

SHA1
82b52c7fdaacb9577df8d294a599423edbf2bdbd

SHA256
52360d0d81cc3c2c95034f736f195754a0d83d88844bd8ea28a530eead1b8538

SHA512
3aed9b11a7805f77bf507465161765e37e465fdc17f67685c3aa0019e843bcc837a884e1083edbb3850f99ff52806a8a4a84ce435a910468e93c9ab565378bd6

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C:\Users\Admin\AppData\Local\Temp\nsjAA5A.tmp\ioSpecial.ini

Filesize
242B

MD5
5ebba6a273e7a79edada9ecd9dcb2035

SHA1
98f925305b8238f60bf0bb6c12e01717a651eb6f

SHA256
fb734cbc8728911aae956a5b2adcca83189e328dce9dbcf0c8f0271a7f947f0c

SHA512
6a1ca32a5d21040ad4a7e8d402a231a30dfc831477044f84ed2ce5b56e69ddad309fe45307ab45c620f5f049e0a5b293d7a7d7c6d202c929030ecee7b4e01fef

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

Filesize
123KB

MD5
547babef61d913ab1a8ab5391fb65195

SHA1
0004077c7679e5b7fb9cdaeb842ca7c631d0f09f

SHA256
2bf784a7ba86703a5317b656312eac2a18242cc1492b7d5d2eb8b0ac797491ee

SHA512
498f154205794a709ba39aea766d322c300aeee401a104288182cdf731873a374e6ab77e37b0e4227e6f195286def90ea674be33917402e5e33d8aa3b143badb

Download Submit