Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    26-10-2021 13:06

General

  • Target

    payment advice_16000.exe

  • Size

    254KB

  • MD5

    a1c481bb9474e04781840009a3c10664

  • SHA1

    c432b71a2f493e7c7a120d42d41bf7e4de2053f8

  • SHA256

    68aba64ef9b4e5af747005ea8efdd213a80e86e45e9b4f480a54af016e3c6c95

  • SHA512

    831053501f491e71664ef594394772f18a5197989c4b4dd625572efa5e508a27ef6d3469a94fad64b7c2dee44904400cd9173edaf1fa5049b21e952bf4903f68

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

d6pu

C2

http://www.bonitaspringshomesearch.com/d6pu/

Decoy

ifixcreditatl.com

productgeekout.com

electricvehicle-insurance.com

kuiper.business

cloudenglabs.com

gorbepari.com

collecthappy.com

amykrussell.store

clubhousebusinesscourse.com

aplussinifiklima.com

slewis.design

atticwitt.com

galenota.com

griphook.xyz

gsjbd1.club

bootystrapfitness.com

emflawrhks.com

alternativedata.investments

eyehealthtnpasumo3.xyz

naturanzaec.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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:1400
    • C:\Users\Admin\AppData\Local\Temp\payment advice_16000.exe
      "C:\Users\Admin\AppData\Local\Temp\payment advice_16000.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1720
      • C:\Users\Admin\AppData\Local\Temp\payment advice_16000.exe
        "C:\Users\Admin\AppData\Local\Temp\payment advice_16000.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:284
    • C:\Windows\SysWOW64\wininit.exe
      "C:\Windows\SysWOW64\wininit.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\payment advice_16000.exe"
        3⤵
        • Deletes itself
        PID:1820

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\nsdC830.tmp\mdta.dll
    MD5

    7be3eed97c26a1f2f541fac2be0b7fa9

    SHA1

    430271b97cebe8ae8fc94b5661dca421469c82cd

    SHA256

    d67b59fb5f9599649fa1aee124aca1b4db74a20fff182133f6569e95d9dd27d0

    SHA512

    80fe44fc62eb3c8799cf75c66b542995db529ad694665bef18b6ed89eeb976bd328f9965694934a40d345b1bb4e10de13e52747e40f60ea66fb3f4eafbaa0d38

  • memory/284-59-0x0000000000770000-0x0000000000A73000-memory.dmp
    Filesize

    3.0MB

  • memory/284-56-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/284-57-0x000000000041D4E0-mapping.dmp
  • memory/284-60-0x00000000002D0000-0x00000000002E1000-memory.dmp
    Filesize

    68KB

  • memory/1400-61-0x0000000006950000-0x0000000006A64000-memory.dmp
    Filesize

    1.1MB

  • memory/1400-68-0x0000000006A70000-0x0000000006B8A000-memory.dmp
    Filesize

    1.1MB

  • memory/1712-62-0x0000000000000000-mapping.dmp
  • memory/1712-63-0x0000000000280000-0x000000000029A000-memory.dmp
    Filesize

    104KB

  • memory/1712-64-0x0000000001E30000-0x0000000002133000-memory.dmp
    Filesize

    3.0MB

  • memory/1712-65-0x0000000000100000-0x0000000000129000-memory.dmp
    Filesize

    164KB

  • memory/1712-67-0x0000000001D00000-0x0000000001D90000-memory.dmp
    Filesize

    576KB

  • memory/1720-54-0x00000000751A1000-0x00000000751A3000-memory.dmp
    Filesize

    8KB

  • memory/1820-66-0x0000000000000000-mapping.dmp