Resubmissions

21-10-2021 12:22

211021-pj5j4sacd5 10

21-10-2021 12:15

211021-pew26sacc7 10

Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-10-2021 12:15

General

  • Target

    triage_dropped_file.exe

  • Size

    253KB

  • MD5

    d0e4c13e6c8ba9fe34d86b554b595d9a

  • SHA1

    83eee2dbe00ae265af9eb13105dc1068b6b034cd

  • SHA256

    f8d9fbcef6907460baa7c91e53d1a40865901bb50906b5519cba440fdbc65032

  • SHA512

    72f5fcd367c0f0fdc83827bea529f84a85ace28550a5cd8102cb0cde2829d81defe312fb0d95d3c5a8e8728f4efd8cb433bfab0b3e1f265fffdc4e0ad687247d

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

kqna

C2

http://www.surfsolutions.info/kqna/

Decoy

achyutlifesciences.com

anthemmg.com

netkopat.com

generationgirlnaturals.com

novatel-network.com

craftstockco.com

thevishantiverse.art

elkerfly.com

haerotechs.com

candypalette.com

gregdokes.com

e-commerce.company

gratitudeland.com

companyintelcloud.com

publicyazilim.com

xc6811.com

aracsozluk.com

janesgalant.quest

fraserstephendop.com

ryan.rentals

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 30 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:1376
    • C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
      "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
        "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1284
    • C:\Windows\SysWOW64\msdt.exe
      "C:\Windows\SysWOW64\msdt.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:568
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
        3⤵
        • Deletes itself
        PID:812

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\nstC3AE.tmp\oirygpbyia.dll
    MD5

    6d2a0ca8aac6594e4f037d3cecdace3b

    SHA1

    2fdc815752d2483ae536ed60dd2104b0e5cc2abd

    SHA256

    f7a3aa43e037f6b25c8070b3aaac9f0c5037abb1c4d01afd30a6f52f7c44f468

    SHA512

    cacc25100aedd926141416ef443dd40f03cb6b1512129bd707fc8ece1c9db2ad9a1de559e8cb3d29b569e2b1b843822f4ef681c4ea33bc5a6a290a3f17bdb7ee

  • memory/568-62-0x0000000000000000-mapping.dmp
  • memory/568-68-0x0000000000420000-0x00000000004B0000-memory.dmp
    Filesize

    576KB

  • memory/568-67-0x00000000023E0000-0x00000000026E3000-memory.dmp
    Filesize

    3.0MB

  • memory/568-66-0x00000000000C0000-0x00000000000E9000-memory.dmp
    Filesize

    164KB

  • memory/568-65-0x0000000000C10000-0x0000000000D04000-memory.dmp
    Filesize

    976KB

  • memory/812-64-0x0000000000000000-mapping.dmp
  • memory/1284-56-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1284-60-0x0000000000340000-0x0000000000351000-memory.dmp
    Filesize

    68KB

  • memory/1284-58-0x00000000008A0000-0x0000000000BA3000-memory.dmp
    Filesize

    3.0MB

  • memory/1284-57-0x000000000041D400-mapping.dmp
  • memory/1376-61-0x00000000068C0000-0x0000000006A4B000-memory.dmp
    Filesize

    1.5MB

  • memory/1376-69-0x0000000004F90000-0x0000000005095000-memory.dmp
    Filesize

    1.0MB

  • memory/1880-54-0x0000000074B91000-0x0000000074B93000-memory.dmp
    Filesize

    8KB