Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-05-2021 13:08

General

  • Target

    doc_391200004532000450.scr

  • Size

    899KB

  • MD5

    1e1f169ac3fc87ad55252f38cad083bb

  • SHA1

    ec778acec7bfe578f6d13556765e5ed5ba0a405b

  • SHA256

    6c6dd45a923d7eb6fa1f114a5a4c20fab27bc03e44a5c8cb8627d43da93dfe48

  • SHA512

    edad0f0ec3c9b0daebbd7ab17ab182cdeabb3fad0ba0d08a2191f1007f41b8cf995ed9082fa3439857065900a1ed3b5c73091113aa8bb6dc3db6813ebf24ee35

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.austinenglishtutor.com/ipio/

Decoy

fatiguemanager.co.uk

malignment.com

fashionashton.com

soawstservices.com

gardengarages.com

affirm.digital

savetheboxes.com

stepupjam.net

sassyfurbaby.com

rarecares.institute

hisarsteel.com

thespotifygrowthguide.com

111indianbend.com

kizilaykorkuevi.com

zeegostar.com

scuolateatroarsenale.com

dyaspaar.com

no1jt.com

gain2020live.com

dearhim.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\doc_391200004532000450.scr
      "C:\Users\Admin\AppData\Local\Temp\doc_391200004532000450.scr" /S
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:568
      • C:\Windows\SysWOW64\mshta.exe
        C:\Windows\System32\mshta.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2668
    • C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2300

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/568-114-0x0000000002330000-0x0000000002331000-memory.dmp
    Filesize

    4KB

  • memory/2300-121-0x0000000000000000-mapping.dmp
  • memory/2300-125-0x0000000004840000-0x00000000048CF000-memory.dmp
    Filesize

    572KB

  • memory/2300-124-0x00000000049F0000-0x0000000004D10000-memory.dmp
    Filesize

    3.1MB

  • memory/2300-122-0x0000000000A30000-0x0000000000A49000-memory.dmp
    Filesize

    100KB

  • memory/2300-123-0x0000000002B00000-0x0000000002B29000-memory.dmp
    Filesize

    164KB

  • memory/2668-116-0x0000000002C00000-0x0000000002C01000-memory.dmp
    Filesize

    4KB

  • memory/2668-119-0x0000000003300000-0x0000000003310000-memory.dmp
    Filesize

    64KB

  • memory/2668-118-0x0000000003670000-0x0000000003990000-memory.dmp
    Filesize

    3.1MB

  • memory/2668-117-0x0000000010410000-0x0000000010439000-memory.dmp
    Filesize

    164KB

  • memory/2668-115-0x0000000000000000-mapping.dmp
  • memory/2708-120-0x00000000050C0000-0x0000000005210000-memory.dmp
    Filesize

    1.3MB

  • memory/2708-126-0x00000000028C0000-0x000000000295B000-memory.dmp
    Filesize

    620KB