Overview

overview

8

Static

static

5

a243b5b5de...22.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    26/08/2026, 16:49

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General

  • Target
    a243b5b5deb26cb92a9773f820db3ede1c981c70a53c6c5776af18cb82c1a922.exe
  • Size 55KB
  • Sample260826-vbterssfqf
  • SHA256 a243b5b5deb26cb92a9773f820db3ede1c981c70a53c6c5776af18cb82c1a922
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwaredefense_evasiondiscoverypersistencespywarestealerupx

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 2 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 7 IoCs
    defense_evasion
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 59 IoCs
    adwarespyware
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
    stealer
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • Views/modifies file attributes 1 TTPs 7 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\a243b5b5deb26cb92a9773f820db3ede1c981c70a53c6c5776af18cb82c1a922.exe
    "C:\Users\Admin\AppData\Local\Temp\a243b5b5deb26cb92a9773f820db3ede1c981c70a53c6c5776af18cb82c1a922.exe"
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.212ok.com/Gbook.asp?qita
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3452
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3452 CREDAT:17410 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4612
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.ymtuku.com/xg/?tan
      2⤵
      • Modifies Internet Explorer settings
      PID:4008
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4916
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3528
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4108
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1084
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1008
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\WINDOWS\windows.exe"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\WINDOWS\windows.exe"
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "c:\system.exe"
      2⤵
      • Hide Artifacts: Hidden Files and Directories
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "c:\system.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3248

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Size 471B
        • SHA256 f7cccd2162c39913b76b17d0abf3fa4ea12466464a68b1251e6abd3b76aa1646
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Size 416B
        • SHA256 ca29d8e5e3dd6f4e1bf106a5b0fea417a50433e20daabce3d462e8c2284d5b63
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico
        • Size 4KB
        • SHA256 5b2c34b3c4e8dd898b664dba6c3786e2ff9869eff55d673aa48361f11325ed07
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        suggestions[1].en-US
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VJ7S99NZ\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        Kno604B.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\Kno604B.tmp
        • Size 88KB
        • SHA256 1e2e25bf730ff20c89d57aa38f7f34be7690820e8279b20127d0014dd27b743f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        windows.exe
        • Path C:\WINDOWS\windows.exe
        • Size 55KB
        • SHA256 6a890ebe6565f2a682f9857db761c4c861f272443b2156b1002d35d0049a7687
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        system.exe
        • Path C:\system.exe
        • Size 55KB
        • SHA256 ed0dc18fc51413564267d9949eebb53642fd7d4e859fe6c5f6e3783f19abaf81
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/896-0-0x0000000000400000-0x0000000000429000-memory.dmp
        Download

        memory/896-37-0x0000000000400000-0x0000000000429000-memory.dmp
        Download