Analysis

  • max time kernel
    154s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 11:07

General

  • Target

    SKM-973116391_PDF.pif.exe

  • Size

    297KB

  • MD5

    aefc9702ff5d6d9064ec8e5ea82e4870

  • SHA1

    716ad70dc07a6b7d3c46209de8627bf3f3535361

  • SHA256

    ef986fa9ac50432d1fc1be8e0ace872cbf28cf51d967d6d35647aa3f77acf94e

  • SHA512

    e5180f0d131111627300dd3b61abae59cf77e0d2a4aa50d9b22dec1c270a865caed5fa4130174930ae2810584c4169e9bf56a0b597401014737d60b250580b55

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

uar3

Decoy

sgadvocats.com

mjscannabus.com

hilldaley.com

ksdollhouse.com

hotgiftboutique.com

purebloodsmeet.com

relaunched.info

cap-glove.com

productcollection.store

fulikyy.xyz

remoteaviationjobs.com

bestcleancrystal.com

virtualorganizationpartner.com

bookgocar.com

hattuafhv.quest

makonigroup.com

officecom-myaccount.com

malgorzata-lac.com

e-learningeducators.com

hygilaur.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 29 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:1208
    • C:\Users\Admin\AppData\Local\Temp\SKM-973116391_PDF.pif.exe
      "C:\Users\Admin\AppData\Local\Temp\SKM-973116391_PDF.pif.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1592
      • C:\Users\Admin\AppData\Local\Temp\SKM-973116391_PDF.pif.exe
        "C:\Users\Admin\AppData\Local\Temp\SKM-973116391_PDF.pif.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:544
    • C:\Windows\SysWOW64\cmmon32.exe
      "C:\Windows\SysWOW64\cmmon32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\SKM-973116391_PDF.pif.exe"
        3⤵
        • Deletes itself
        PID:1616

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\nso2204.tmp\qhkurpf.dll
    MD5

    4b585786f7c4954b6ec5fa47486c3e01

    SHA1

    def671ab058b9db6bb436c57be2ed88b8f80580c

    SHA256

    c553442735f0cf507ae1db7e5beb9dfd91e6e26759ba4b064cb284a684ed8aa9

    SHA512

    38585b0152d9a2d74ce47caaf1d2eb83e314e2930268ca607ad40352b10b5669fbb2fc4700d653e19273f01e66f54a71b0e543f5e707d94913ec92a69633c29a

  • memory/544-56-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/544-58-0x0000000000730000-0x0000000000A33000-memory.dmp
    Filesize

    3.0MB

  • memory/544-59-0x0000000000480000-0x0000000000491000-memory.dmp
    Filesize

    68KB

  • memory/1208-60-0x0000000006290000-0x00000000063E6000-memory.dmp
    Filesize

    1.3MB

  • memory/1208-65-0x0000000005E20000-0x0000000005EBD000-memory.dmp
    Filesize

    628KB

  • memory/1548-61-0x00000000002C0000-0x00000000002CD000-memory.dmp
    Filesize

    52KB

  • memory/1548-62-0x0000000000080000-0x00000000000A9000-memory.dmp
    Filesize

    164KB

  • memory/1548-63-0x0000000002030000-0x0000000002333000-memory.dmp
    Filesize

    3.0MB

  • memory/1548-64-0x0000000001D60000-0x0000000001DF0000-memory.dmp
    Filesize

    576KB

  • memory/1592-54-0x0000000076151000-0x0000000076153000-memory.dmp
    Filesize

    8KB