Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    04-05-2021 09:39

General

  • Target

    Lanco,pdf.exe

  • Size

    245KB

  • MD5

    d539972067e967998d09d0a2f1b31b52

  • SHA1

    20fce9b0e4e0f86143dfba1259b0293a32d74cbb

  • SHA256

    b36a2901bfafd8723bfddd0388f65b0a46237b063ca33edbf773bb589f929981

  • SHA512

    ffa91ce8a780bf1a8fb9f2dba0d5fc74744c82a600d6890acafeff6610828e6d8da751b34cb2ea46558c9a2387c66415c82c254c6131467546fbbae19b3bcd65

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.buymobilia.com/ugtw/

Decoy

keystohumanconnection.com

kba5imberly.xyz

wanshuila.com

haus2690dsgnbuild.com

sf-exprrss.com

volesvip.com

pointmansoutpost.com

rytfs.com

hosoume.com

momentsbymich.com

foxterrier-vonderfinsterley.com

uviibe.com

chiaraborrello.com

ild.academy

chinchinyap.com

cn-emmy.com

ixhaberler.com

styles28.space

schutz-service.com

ycgcwsp.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2740
    • C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2968
    • C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe"
        3⤵
          PID:684

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsa796E.tmp\b64gt.dll

      MD5

      c51e82e4d8b71b52311dd3b83ed82da8

      SHA1

      d30a8cd5a36fe7d59b1ec9209913e2297e588b7c

      SHA256

      5293ac79c7ae9256c12874bacd71b555250484a139726625ebc414e871616f12

      SHA512

      45127a9290386396b26f050ed653985651c7c19f281743fc3aa9d0f7b69c72a22a9b5fee09c2862360ef3d1b289a1569babd5b25a0861c271efc7f0e15183c93

    • memory/684-122-0x0000000000000000-mapping.dmp

    • memory/848-126-0x0000000000AE0000-0x0000000000B6F000-memory.dmp

      Filesize

      572KB

    • memory/848-125-0x0000000000C80000-0x0000000000FA0000-memory.dmp

      Filesize

      3.1MB

    • memory/848-123-0x00000000010B0000-0x00000000010B7000-memory.dmp

      Filesize

      28KB

    • memory/848-124-0x0000000000360000-0x0000000000388000-memory.dmp

      Filesize

      160KB

    • memory/848-121-0x0000000000000000-mapping.dmp

    • memory/912-116-0x0000000002480000-0x0000000002482000-memory.dmp

      Filesize

      8KB

    • memory/2740-120-0x00000000056E0000-0x000000000584C000-memory.dmp

      Filesize

      1.4MB

    • memory/2740-127-0x0000000005850000-0x000000000599A000-memory.dmp

      Filesize

      1.3MB

    • memory/2968-119-0x00000000005A0000-0x00000000005B0000-memory.dmp

      Filesize

      64KB

    • memory/2968-118-0x0000000000B20000-0x0000000000E40000-memory.dmp

      Filesize

      3.1MB

    • memory/2968-117-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/2968-115-0x000000000041D040-mapping.dmp