Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    04-05-2021 09:58

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
  • Deletes itself 1 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 31 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1200
    • 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:1840
      • 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:784
    • C:\Windows\SysWOW64\NAPSTAT.EXE
      "C:\Windows\SysWOW64\NAPSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Lanco,pdf.exe"
        3⤵
        • Deletes itself
        PID:1564

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsn9F0F.tmp\b64gt.dll
    MD5

    c51e82e4d8b71b52311dd3b83ed82da8

    SHA1

    d30a8cd5a36fe7d59b1ec9209913e2297e588b7c

    SHA256

    5293ac79c7ae9256c12874bacd71b555250484a139726625ebc414e871616f12

    SHA512

    45127a9290386396b26f050ed653985651c7c19f281743fc3aa9d0f7b69c72a22a9b5fee09c2862360ef3d1b289a1569babd5b25a0861c271efc7f0e15183c93

  • memory/784-65-0x0000000000460000-0x0000000000470000-memory.dmp
    Filesize

    64KB

  • memory/784-61-0x000000000041D040-mapping.dmp
  • memory/784-63-0x0000000000400000-0x0000000000428000-memory.dmp
    Filesize

    160KB

  • memory/784-64-0x00000000008B0000-0x0000000000BB3000-memory.dmp
    Filesize

    3.0MB

  • memory/1200-73-0x0000000006130000-0x0000000006246000-memory.dmp
    Filesize

    1.1MB

  • memory/1200-66-0x0000000004A30000-0x0000000004AFE000-memory.dmp
    Filesize

    824KB

  • memory/1564-68-0x0000000000000000-mapping.dmp
  • memory/1732-67-0x0000000000000000-mapping.dmp
  • memory/1732-69-0x0000000000C10000-0x0000000000C56000-memory.dmp
    Filesize

    280KB

  • memory/1732-70-0x0000000000080000-0x00000000000A8000-memory.dmp
    Filesize

    160KB

  • memory/1732-71-0x0000000002060000-0x0000000002363000-memory.dmp
    Filesize

    3.0MB

  • memory/1732-72-0x00000000008A0000-0x000000000092F000-memory.dmp
    Filesize

    572KB

  • memory/1840-59-0x00000000757C1000-0x00000000757C3000-memory.dmp
    Filesize

    8KB

  • memory/1840-62-0x0000000001C70000-0x0000000001C72000-memory.dmp
    Filesize

    8KB