Analysis

  • max time kernel
    153s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    07-09-2021 05:21

General

  • Target

    grace $$.exe

  • Size

    489KB

  • MD5

    ba3c72780f80542fe09aeed80a9a56c6

  • SHA1

    22bc724884cf52efe4c596bcd8ffdd155c783238

  • SHA256

    c840ee368fcab5974485c16fc456b1dc1923cc5e113ce6a96f6f314a7ec5ac94

  • SHA512

    a66602343d24dff4330551b900644ece8fe62059a88327ddac99fb0bc625a7eb3cfa6f3697beed4a0ec9f2f1f227f42dd4e36c43470cf4c71d38b6ad07ee15fd

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

t75f

C2

http://www.vertexnailsblaine.com/t75f/

Decoy

onegolfsydney.com

kaizensportscoaching.com

mliacbjv.icu

rinstech.net

midas-parts.com

istmenian.com

ibrahimpike.com

herbspaces.com

gentleman4higher.com

workabusiness.com

isabusive.website

222555dy.com

lwhyzhzb.xyz

gabrielabravoillanes.com

hearthomelife.com

buildswealth.com

printitaz.com

l-mventures.com

baincot3.com

nstaq-labs.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Local\Temp\grace $$.exe
      "C:\Users\Admin\AppData\Local\Temp\grace $$.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2176
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3932
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:1164

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Command-Line Interface

    1
    T1059

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1164-131-0x0000000000000000-mapping.dmp
    • memory/2176-126-0x000000000041D110-mapping.dmp
    • memory/2176-128-0x0000000000CC0000-0x0000000000CD0000-memory.dmp
      Filesize

      64KB

    • memory/2176-125-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/2176-127-0x0000000000D60000-0x0000000001080000-memory.dmp
      Filesize

      3.1MB

    • memory/2996-129-0x0000000005EF0000-0x0000000006062000-memory.dmp
      Filesize

      1.4MB

    • memory/2996-136-0x0000000006160000-0x000000000621B000-memory.dmp
      Filesize

      748KB

    • memory/3340-121-0x0000000005560000-0x0000000005576000-memory.dmp
      Filesize

      88KB

    • memory/3340-123-0x000000000C8C0000-0x000000000C91F000-memory.dmp
      Filesize

      380KB

    • memory/3340-122-0x000000000C820000-0x000000000C821000-memory.dmp
      Filesize

      4KB

    • memory/3340-118-0x0000000005170000-0x0000000005171000-memory.dmp
      Filesize

      4KB

    • memory/3340-124-0x000000000F3B0000-0x000000000F3DA000-memory.dmp
      Filesize

      168KB

    • memory/3340-115-0x0000000000830000-0x0000000000831000-memory.dmp
      Filesize

      4KB

    • memory/3340-120-0x00000000050A0000-0x00000000050A1000-memory.dmp
      Filesize

      4KB

    • memory/3340-119-0x00000000050F0000-0x00000000050F1000-memory.dmp
      Filesize

      4KB

    • memory/3340-117-0x00000000055D0000-0x00000000055D1000-memory.dmp
      Filesize

      4KB

    • memory/3932-134-0x0000000002E20000-0x0000000003140000-memory.dmp
      Filesize

      3.1MB

    • memory/3932-133-0x0000000002AD0000-0x0000000002AF9000-memory.dmp
      Filesize

      164KB

    • memory/3932-132-0x0000000000200000-0x000000000020B000-memory.dmp
      Filesize

      44KB

    • memory/3932-135-0x0000000002D10000-0x0000000002D9F000-memory.dmp
      Filesize

      572KB

    • memory/3932-130-0x0000000000000000-mapping.dmp