d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b

Analysis

max time kernel
150s
max time network
117s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/07/2026, 15:50

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General

Target
SAMPUninstall.exe
Size 56KB
Sample260729-s97nyaah67
SHA256 d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b
MD5 bffa504cd63305418858b150faa8f408
SHA1 86886fd2378aa33935cf684f056454859713aed4
SHA512 6b8958a4ccffce02ba8e4390f66121a02116e2b2ef9c4baa2eea62b8acfe380d0c0dd5e773f83b7062467a34019612d3f8a531e1a4ffcefb769de964cbf02019
SSDEEP 1536:HLXB65939tY6HBg4sXJOgdLeAyN/dIM6su:HLk395hYXJOceAlMM
TLSH
T18943BF0A37C488BBD66A06711AB7D77AF7FAE71123104A376B501F7F2930282DE15297
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery installer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2716	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	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	SAMPUninstall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral8/files/0x000d00000001c4a8-0.dat	nsis_installer_1
behavioral8/files/0x000d00000001c4a8-0.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 2716	3856	SAMPUninstall.exe	90

C:\Users\Admin\AppData\Local\Temp\SAMPUninstall.exe
"C:\Users\Admin\AppData\Local\Temp\SAMPUninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3856
- 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:2716

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

InstallOptions.dll

Path C:\Users\Admin\AppData\Local\Temp\nso72E5.tmp\InstallOptions.dll
Size 14KB
SHA256 c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b
MD5 325b008aec81e5aaa57096f05d4212b5
SHA1 27a2d89747a20305b6518438eff5b9f57f7df5c3
SHA512 18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf
SSDEEP 192:86d+dHXLHQOPiY53uiUdigyU+WsPdc/A1A+2jwK72dwF7dBEnbok:86UdHXcIiY535zBt2jw+BEnbo
TLSH
T1ED622A11778888F3DBD2013EB4533707AF9D5126B4929ED2CA271ECA6D2B05D7EB2346
MD5 SHA1 SHA512 SSDEEP TLSH

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ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nso72E5.tmp\ioSpecial.ini
Size 577B
SHA256 f6895534ba7b90a0d8b432a1f9a1d4b933f4c64ac32f48c014b4d38aad319f2a
MD5 2e1d0434ca772c4b906b4a881344cd12
SHA1 fd1afb28aae73c63176384879e2ef91d5ee7e7c3
SHA512 a443ca4e90ba43714247cd02d2b43cbc85fd8f11735071c2ee84716402a76a7475f4d9957dd9023baeb89687284c5e07f4ae4658d8468ad15c8ba314b6fc3524
TLSH
T15FF0EB8A811F533E0910199265FF3A9123D00C348B8A3BB0F53EC847A34DEE188DDD83
MD5 SHA1 SHA512 TLSH

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ioSpecial.ini

Path C:\Users\Admin\AppData\Local\Temp\nso72E5.tmp\ioSpecial.ini
Size 538B
SHA256 28812003b4f0267be6803162a903c747d18bf6da66b2dd1f5cc3d78950b9ce57
MD5 fdcbf5a18f3852aed76164c6ef8aa7f1
SHA1 50ee19ce20bcb272e4921f0e589909caf6c51350
SHA512 aad1824088c021364ddba9540235961d6bc18a19b0ee9cfb0d312d6493cd9f6cbae1f6c2ee084e71aac42dda724e114a01396b5549516771de8de14457d2ef46
TLSH
T1A2F0C98A851B533E19205996A9FE3B9513D00C384B4137B1F93E8847A34DEE189D9A83
MD5 SHA1 SHA512 TLSH

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Au_.exe

Path C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
Size 56KB
SHA256 d00f8bf2eaa1994b0064d7b14fc987b0aab9b3c440a4177257ee2d3217fe6d3b
MD5 bffa504cd63305418858b150faa8f408
SHA1 86886fd2378aa33935cf684f056454859713aed4
SHA512 6b8958a4ccffce02ba8e4390f66121a02116e2b2ef9c4baa2eea62b8acfe380d0c0dd5e773f83b7062467a34019612d3f8a531e1a4ffcefb769de964cbf02019
SSDEEP 1536:HLXB65939tY6HBg4sXJOgdLeAyN/dIM6su:HLk395hYXJOceAlMM
TLSH
T18943BF0A37C488BBD66A06711AB7D77AF7FAE71123104A376B501F7F2930282DE15297
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads