Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    03-05-2021 17:04

General

  • Target

    Remittance Advice pdf.exe

  • Size

    753KB

  • MD5

    f597d74f90311fa86a708b211892d76f

  • SHA1

    2d8f68efc677df2b2958e5631bffaf610a5661ab

  • SHA256

    84d44657f148197e79e253ab0b50cdd8003e2b760318f9ab760b47fe4e25a594

  • SHA512

    f541bfd4e0a0566002bd1e18d5b43d20a2452099e23e2f0f5e64202e2bad1317bb3aa51eca005908314bb49eee6074b8ae09c58006ec1c134c7b218a5e6f312e

Malware Config

Extracted

Family

xloader

Version

2.1

C2

http://www.brandonprattdrums.com/nt8e/

Decoy

cfwg123.com

gazipasadan.xyz

careogeen.com

zitatewelten.com

thecvpro.com

viltais.com

benimed.today

rogerecameron.com

courtclassesathome.com

yakin-hm.com

vidasanayprospera.com

mandirana.com

skybluebet.com

rescuedpetsarewonderful.com

solisdq.info

affiliateside.com

homewellliving.com

missteenroyaluniverse.com

bajrangproperties.com

bundleobliss.com

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Adds policy Run key to start application 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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:3052
    • C:\Users\Admin\AppData\Local\Temp\Remittance Advice pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Remittance Advice pdf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Program Files (x86)\internet explorer\ieinstal.exe
        "C:\Program Files (x86)\internet explorer\ieinstal.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3548
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.exe"
      2⤵
      • Adds policy Run key to start application
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2304

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

2
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/860-114-0x00000000005F0000-0x00000000005F1000-memory.dmp
    Filesize

    4KB

  • memory/2304-125-0x00000000049D0000-0x0000000004A60000-memory.dmp
    Filesize

    576KB

  • memory/2304-124-0x0000000004C10000-0x0000000004F30000-memory.dmp
    Filesize

    3.1MB

  • memory/2304-122-0x0000000000930000-0x0000000000950000-memory.dmp
    Filesize

    128KB

  • memory/2304-123-0x0000000002BC0000-0x0000000002BE8000-memory.dmp
    Filesize

    160KB

  • memory/2304-121-0x0000000000000000-mapping.dmp
  • memory/3052-120-0x0000000004DA0000-0x0000000004EDC000-memory.dmp
    Filesize

    1.2MB

  • memory/3052-126-0x0000000005F70000-0x00000000060EC000-memory.dmp
    Filesize

    1.5MB

  • memory/3548-116-0x00000000004D0000-0x00000000004D1000-memory.dmp
    Filesize

    4KB

  • memory/3548-119-0x00000000007F0000-0x0000000000801000-memory.dmp
    Filesize

    68KB

  • memory/3548-118-0x00000000045C0000-0x00000000048E0000-memory.dmp
    Filesize

    3.1MB

  • memory/3548-117-0x0000000010410000-0x0000000010438000-memory.dmp
    Filesize

    160KB

  • memory/3548-115-0x0000000000000000-mapping.dmp