Overview

overview

10

Static

static

Document-1310.iso

windows7_x64

3

Document-1310.iso

windows10-2004_x64

3

1662.ps1

windows7_x64

1

1662.ps1

windows10-2004_x64

10

Scan_139.jpg

windows7_x64

3

Scan_139.jpg

windows10-2004_x64

3

Scan_139.jpg.lnk

windows7_x64

3

Scan_139.jpg.lnk

windows10-2004_x64

10

x.txt

windows7_x64

1

x.txt

windows10-2004_x64

1

Resubmissions

05-06-2022 15:10

220605-sj6zqabfd5 8

02-06-2022 19:49

220602-yjvvcabad9 10

Analysis

  • max time kernel
    91s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-06-2022 19:49

Sharing

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Report Analysis Logs

General

  • Target

    1662.ps1

  • Size

    192KB

  • MD5

    3f5498ca9c0d3d185bc45edf45185d07

  • SHA1

    f945b742489e29dff58fd41a4f6293b6deb57533

  • SHA256

    caa1268740d0b48795621f8d0e127fd4574c87de5c16f5348fadc97866d1de39

  • SHA512

    34849f297613c9c2b284704e65701aa88ded0ccea1956d55233a052810149b81489c4e7b6bd0416b53d394ec676221527fbe700434756ed04827b5b9bad0334c

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\1662.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:1888
    • 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:4100
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -c "&{$v1='3654';$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:4792

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1888-136-0x0000023072EE9000-0x0000023072EEF000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1888-130-0x0000023075E50000-0x0000023075E72000-memory.dmp

    Filesize

    136KB

    Download

  • memory/1888-132-0x0000023072EE9000-0x0000023072EEF000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1888-133-0x00007FFB908B0000-0x00007FFB91371000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1888-134-0x0000023072EE9000-0x0000023072EEF000-memory.dmp

    Filesize

    24KB

    Download

  • memory/1888-135-0x00007FFB908B0000-0x00007FFB91371000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1888-131-0x00007FFB908B0000-0x00007FFB91371000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1888-137-0x0000023076770000-0x000002307677A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/1888-138-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/4100-139-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/4100-142-0x0000008800000000-0x000000880000E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/4792-141-0x00007FFB908B0000-0x00007FFB91371000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4792-143-0x00007FFB908B0000-0x00007FFB91371000-memory.dmp

    Filesize

    10.8MB

    Download