Analysis

  • max time kernel
    169s
  • max time network
    184s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-10-2021 17:44

General

  • Target

    IMG-pic 0699821.exe

  • Size

    1001KB

  • MD5

    14f80d04ac41196b969f4a6a60016a5a

  • SHA1

    7fbf938dcb3c873b4e6bb0b0ca00cff825c59d65

  • SHA256

    e07717afe65c94d4cae860225c8d6aaa4d3bde732598d34c96f98ff927e1d489

  • SHA512

    d2c757df0c99e93f40f6000cdf64493d62ee41f32471091800616f1aaca1063cc48c1f0d26b6d5ea2a5d44cb636b6e86cf4b1dcfe540242cf8640b17c896642a

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epns

C2

http://www.lnvietnam.online/epns/

Decoy

mmfaccao.com

blttsperma.quest

946abe.net

indispensablehands.com

jkformationfrance.com

phonerepaire.com

lienquan-trian.com

youkuti.com

empowermindbodystudios.com

seunicapf.com

fk-link.xyz

kunai.tech

difficultbutdoablebrand.com

ejworkspace.com

teracorp.biz

thekids.today

quintaalentejana.com

annaviruksham.com

jshengrong.com

nsmetalmakina.xyz

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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe
      "C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:568
      • C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe
        "C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3012
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:1264

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/568-115-0x0000000003CC1000-0x0000000003CD5000-memory.dmp
    Filesize

    80KB

  • memory/568-114-0x0000000002420000-0x0000000002421000-memory.dmp
    Filesize

    4KB

  • memory/1264-122-0x0000000000000000-mapping.dmp
  • memory/1264-126-0x0000000000C90000-0x0000000000D20000-memory.dmp
    Filesize

    576KB

  • memory/1264-125-0x0000000002DA0000-0x00000000030C0000-memory.dmp
    Filesize

    3.1MB

  • memory/1264-124-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1264-123-0x0000000000D90000-0x0000000000D9C000-memory.dmp
    Filesize

    48KB

  • memory/2988-121-0x00000000050E0000-0x000000000520B000-memory.dmp
    Filesize

    1.2MB

  • memory/2988-127-0x0000000002A20000-0x0000000002ACF000-memory.dmp
    Filesize

    700KB

  • memory/3012-119-0x0000000000AB0000-0x0000000000DD0000-memory.dmp
    Filesize

    3.1MB

  • memory/3012-120-0x00000000005D0000-0x00000000005E1000-memory.dmp
    Filesize

    68KB

  • memory/3012-117-0x000000000041D410-mapping.dmp
  • memory/3012-116-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB