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Overview

overview

10

Static

static

8

aa5f994ffd...68.exe

windows7-x64

10

aa5f994ffd...68.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    191s
  • max time network
    226s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 11:21

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General

  • Target

    aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768.exe

  • Size

    262KB

  • MD5

    bf7c2e037a23e9966167c810334d77d7

  • SHA1

    26e2a09beabf753ddabb93b4706805be46718e70

  • SHA256

    aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768

  • SHA512

    309ad1cff9c52d748bfb627cac89d2f7c104db16a3d2947bc3344b29e3bf9ab539c32fef01cf882e411604601d1cd8201e24d06d10f01e171d81c3c66ff95569

  • SSDEEP

    3072:gDrF9h20NUmzQze45ggO8/tmiG+lDe7eWQbFo90mcrWt7HrOgwcoutZ:g19RNUmzQzjgH8/tmiGqcoS

Score
10/10
evasionpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 18 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • UAC bypass 3 TTPs 3 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 4 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
    persistence
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 15 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 51 IoCs
    adwarespyware
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
    stealer
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 4 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768.exe
    "C:\Users\Admin\AppData\Local\Temp\aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2440
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Sets file execution options in registry
        • Windows security modification
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:1832
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    1⤵
      PID:2560
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1368 CREDAT:17410 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4080

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      262KB

      MD5

      bf7c2e037a23e9966167c810334d77d7

      SHA1

      26e2a09beabf753ddabb93b4706805be46718e70

      SHA256

      aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768

      SHA512

      309ad1cff9c52d748bfb627cac89d2f7c104db16a3d2947bc3344b29e3bf9ab539c32fef01cf882e411604601d1cd8201e24d06d10f01e171d81c3c66ff95569

      Download Submit

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      262KB

      MD5

      bf7c2e037a23e9966167c810334d77d7

      SHA1

      26e2a09beabf753ddabb93b4706805be46718e70

      SHA256

      aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768

      SHA512

      309ad1cff9c52d748bfb627cac89d2f7c104db16a3d2947bc3344b29e3bf9ab539c32fef01cf882e411604601d1cd8201e24d06d10f01e171d81c3c66ff95569

      Download Submit

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      262KB

      MD5

      bf7c2e037a23e9966167c810334d77d7

      SHA1

      26e2a09beabf753ddabb93b4706805be46718e70

      SHA256

      aa5f994ffd01a7de2555f7a2d6be6f781d6da8e840924451a241312f579c1768

      SHA512

      309ad1cff9c52d748bfb627cac89d2f7c104db16a3d2947bc3344b29e3bf9ab539c32fef01cf882e411604601d1cd8201e24d06d10f01e171d81c3c66ff95569

      Download Submit

    • memory/1832-144-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/1832-147-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/1832-148-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/1832-151-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/1832-152-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2440-141-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

      Download

    • memory/2440-142-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

      Download

    • memory/4252-135-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

      Download

    • memory/4252-134-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

      Download