621f646fc179862feb1a1a2557e3e10561c1b8dfe673d0bb0e1bc365331b3c80

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18/10/2024, 03:14

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
$0/uninstall.exe
Size 78KB
Sample241018-dreswatfkb
SHA256 8f75ba9703c28b460025e05615222ed2b31e5eed829bfbab30bb029e873c0c24
MD5 490071c63a8583c44546421214809399
SHA1 f2268f3629b25b73b7f3ad984d867be01c19a670
SHA512 00301e21a10071a875b41ab8dbb715fad81af1c28f2badc8d2580b7b40ef52315fbd4af5e1e9a33c2070c3dc5c818632f0bed98f6e46d0869a3859997e12425b
SSDEEP 1536:PEkjY1zy214Qay0DGkJ7qAELVigJGo5hcpw/1q792sX7Ia12/DY:8kjAJ4dDGkJ+AI0bo1qRka0/U
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
980	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
980	Au_.exe
980	Au_.exe
980	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 1 IoCs

installer

resource	yara_rule
behavioral4/files/0x000d000000023b6d-3.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 980	3024	uninstall.exe	84
PID 3024 wrote to memory of 980	3024	uninstall.exe	84
PID 3024 wrote to memory of 980	3024	uninstall.exe	84

C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024
- 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\$0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:980

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

InstallOptions.dll

Path C:\Users\Admin\AppData\Local\Temp\nso75DD.tmp\InstallOptions.dll
Size 13KB
SHA256 551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc
MD5 d765c492c21689e3d9d61634371fd861
SHA1 ac200933671ae52c9d5544d0e2e8e9144d286c83
SHA512 9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f
SSDEEP 192:9B6RvrfvOuJQDghBy/X7QKq3TLGciZJf0EzWzMnz6WoF1dBs:v6RrviWaX7eiZJ7nz6bB
MD5 SHA1 SHA512 SSDEEP

Submit Download

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nso75DD.tmp\System.dll
Size 10KB
SHA256 802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd
MD5 fe24766ba314f620d57d0cf7339103c0
SHA1 8641545f03f03ff07485d6ec4d7b41cbb898c269
SHA512 60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3
SSDEEP 192:rO6dJA/ruAFEiUdWWE6hE5RYUdJfbub1aMBgMO:yKAFERdlxhGRYUzqZaMB
MD5 SHA1 SHA512 SSDEEP

Submit Download

ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nso75DD.tmp\ioSpecial.ini
Size 703B
SHA256 a1c9f078deea99c95cd996e3460cdccaad10b911b0a8f8edd2f7c1dce1d3acdc
MD5 524912a0e6d6a54b9594f10b878b2d9e
SHA1 ce365aba889c75732c82a8901f1f7c32e8fbd8ef
SHA512 9439989d04911deee0b1b9f95e89b711a0e50ef320a7731d53db710ef79c0a579a20a9c4f7c587c64c85473586e7b8b0a6c2a40523d45ef3728aa12ab45ac6af
MD5 SHA1 SHA512

Submit Download

ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nso75DD.tmp\ioSpecial.ini
Size 628B
SHA256 72a634c2db63507d110e1c6f2c7af7b395b6ce81a6e873d56a3e241cb7ba759b
MD5 6f63f5e1a1e02cc323b13cc799264fa2
SHA1 16e4f87f9f3b19f590b36869df566af1648ce295
SHA512 35580ed54a0e54c63c17efab834b76ae4e276d8989b34209bc6deebcbf7728edc424a1c69844e508e24303d3dd80413c874ccafd5371fb0506c94c2818767088
MD5 SHA1 SHA512

Submit Download

Au_.exe

Path C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 78KB
SHA256 8f75ba9703c28b460025e05615222ed2b31e5eed829bfbab30bb029e873c0c24
MD5 490071c63a8583c44546421214809399
SHA1 f2268f3629b25b73b7f3ad984d867be01c19a670
SHA512 00301e21a10071a875b41ab8dbb715fad81af1c28f2badc8d2580b7b40ef52315fbd4af5e1e9a33c2070c3dc5c818632f0bed98f6e46d0869a3859997e12425b
SSDEEP 1536:PEkjY1zy214Qay0DGkJ7qAELVigJGo5hcpw/1q792sX7Ia12/DY:8kjAJ4dDGkJ+AI0bo1qRka0/U
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads