Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 04:30

General

  • Target
    InternetExplorer.exe
  • Size 855KB
  • Sample241106-e43adatpav
  • SHA256 35607928da6aded83ef5a7261408406e3d80bb0a11ee5cfb29e24e91007d5f27
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xred

C2
  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Signatures

  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 18 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\InternetExplorer.exe
    "C:\Users\Admin\AppData\Local\Temp\InternetExplorer.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Users\Admin\AppData\Local\Temp\._cache_InternetExplorer.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_InternetExplorer.exe"
      2⤵
      • Executes dropped EXE
      • Installs/modifies Browser Helper Object
      • System policy modification
      PID:3172
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4656
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • System policy modification
        PID:4052
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/p/?LinkId=255141# -embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:392 CREDAT:17410 /prefetch:2
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:3528
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2280
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" InjUpdate/# -embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3980 CREDAT:17410 /prefetch:2
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2204

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Synaptics.exe

        • Path C:\ProgramData\Synaptics\Synaptics.exe
        • Size 855KB
        • SHA256 35607928da6aded83ef5a7261408406e3d80bb0a11ee5cfb29e24e91007d5f27
        • MD5 SHA1 SHA512 SSDEEP

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187
        • Size 471B
        • SHA256 7900093a0b4cad3b1837c7d3f485d6aa8da596447baca8397ac6a140b59924ac
        • MD5 SHA1 SHA512

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187
        • Size 412B
        • SHA256 97cfb711021d9879cf01ba98be50ae0ed1ca2c5536c130ee7640747f657b822a
        • MD5 SHA1 SHA512

        www.msn[1].xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DOMStore\4TZGA8A9\www.msn[1].xml
        • Size 127B
        • SHA256 3f3e23e0de85c19c4813d55a04eb7c55e7bd94fdb0062553bb7ba9d0097a392e
        • MD5 SHA1 SHA512

        RecoveryStore.{DC97BE58-9BF7-11EF-B319-C67090DD1599}.dat

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{DC97BE58-9BF7-11EF-B319-C67090DD1599}.dat
        • Size 5KB
        • SHA256 9ef0ae5e63d161587c59d76bd764f4120fe7ef8a3dec6f542f76f15779af2ad7
        • MD5 SHA1 SHA512 SSDEEP

        verF81B.tmp

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF81B.tmp
        • Size 15KB
        • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
        • MD5 SHA1 SHA512 SSDEEP

        imagestore.dat

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\5a279vn\imagestore.dat
        • Size 866B
        • SHA256 80ce4780f1a2800ed78bb48bcda5c3e937850f4200fbfd912df2d8c3dad8124d
        • MD5 SHA1 SHA512

        suggestions[1].en-US

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3DWZNJ32\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP

        favicon[1].ico

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\favicon[1].ico
        • Size 758B
        • SHA256 bbf8da37d92138cc08ffeec8e3379c334988d5ae99f4415579999bfbbb57a66c
        • MD5 SHA1 SHA512

        ._cache_InternetExplorer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\._cache_InternetExplorer.exe
        • Size 102KB
        • SHA256 f0a192490cf0da43cf8c8ec39e7ad95e86a7ba9e7c8493d401727f62fd53f665
        • MD5 SHA1 SHA512 SSDEEP

        7yaGR9Ah.xlsm

        • Path C:\Users\Admin\AppData\Local\Temp\7yaGR9Ah.xlsm
        • Size 17KB
        • SHA256 8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
        • MD5 SHA1 SHA512 SSDEEP

        7yaGR9Ah.xlsm

        • Path C:\Users\Admin\AppData\Local\Temp\7yaGR9Ah.xlsm
        • Size 21KB
        • SHA256 1c5086fc0f46566ce351981b39fcd5e17b3daf95b25fce9adcbde957332c9f58
        • MD5 SHA1 SHA512 SSDEEP

        memory/2280-199-0x00007FFD4AB00000-0x00007FFD4AB10000-memory.dmp

        memory/2280-193-0x00007FFD4D3B0000-0x00007FFD4D3C0000-memory.dmp

        memory/2280-200-0x00007FFD4AB00000-0x00007FFD4AB10000-memory.dmp

        memory/2280-197-0x00007FFD4D3B0000-0x00007FFD4D3C0000-memory.dmp

        memory/2280-196-0x00007FFD4D3B0000-0x00007FFD4D3C0000-memory.dmp

        memory/2280-194-0x00007FFD4D3B0000-0x00007FFD4D3C0000-memory.dmp

        memory/2280-195-0x00007FFD4D3B0000-0x00007FFD4D3C0000-memory.dmp

        memory/2476-0-0x0000000002280000-0x0000000002281000-memory.dmp

        memory/2476-130-0x0000000000400000-0x00000000004DC000-memory.dmp

        memory/3172-71-0x0000000000650000-0x000000000066E000-memory.dmp

        memory/3172-65-0x00007FFD6E9C3000-0x00007FFD6E9C5000-memory.dmp

        memory/4656-335-0x0000000000400000-0x00000000004DC000-memory.dmp

        memory/4656-336-0x0000000002130000-0x0000000002131000-memory.dmp

        memory/4656-132-0x0000000002130000-0x0000000002131000-memory.dmp

        memory/4656-386-0x0000000000400000-0x00000000004DC000-memory.dmp