Analysis

  • max time kernel
    131s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2023, 23:33

General

  • Target

    dc7132d6729a3c84604716e679e41a8156e87c8cb48f309a3b84fb47d5783cb3.exe

  • Size

    1.6MB

  • MD5

    478fbccad2ab41b7ff5d0cc4717683ea

  • SHA1

    1547314fc8ca57845b56204ea4a38e27d678fc79

  • SHA256

    dc7132d6729a3c84604716e679e41a8156e87c8cb48f309a3b84fb47d5783cb3

  • SHA512

    e17dd63b58b4b9140531d3723c91dd045ab573ec996fda8632b3e83eabe7f01c476be618e959f085da410b9c84334c018e817648d8717da288115ffbfc71597e

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc7132d6729a3c84604716e679e41a8156e87c8cb48f309a3b84fb47d5783cb3.exe
    "C:\Users\Admin\AppData\Local\Temp\dc7132d6729a3c84604716e679e41a8156e87c8cb48f309a3b84fb47d5783cb3.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1484
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:336
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 1680
      2⤵
      • Program crash
      PID:1584
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4092
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1484 -ip 1484
        1⤵
          PID:2456

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                478fbccad2ab41b7ff5d0cc4717683ea

                SHA1

                1547314fc8ca57845b56204ea4a38e27d678fc79

                SHA256

                dc7132d6729a3c84604716e679e41a8156e87c8cb48f309a3b84fb47d5783cb3

                SHA512

                e17dd63b58b4b9140531d3723c91dd045ab573ec996fda8632b3e83eabe7f01c476be618e959f085da410b9c84334c018e817648d8717da288115ffbfc71597e

              • C:\Users\Admin\AppData\Local\Temp\grandUIAi8knHdvhZwkbe\information.txt

                Filesize

                3KB

                MD5

                78acd0ce571a38aba711f1d1b062b771

                SHA1

                2c23777f02ffb2d81e196ab1fca91650b710fb01

                SHA256

                beab47b06d4217f7c3150dfaf06a5a425ca0e0344e99919f107ab94222bd1863

                SHA512

                292545be6864f4630a721609b409ecd863d641a4c6ea6f93acb4059ebd5fe3583a55953330c7e2759cdc8f77a5d448e184739d5b6d615f09aefa1506873788d5

              • C:\Users\Admin\AppData\Local\Temp\posterBoxi8knHdvhZwkbe\QdX9ITDLyCRBWeb Data

                Filesize

                92KB

                MD5

                15b15858232eb73939154fa51070f7d9

                SHA1

                c5d442be8afd48c12f3e10324d74c274ebad25d8

                SHA256

                415b5d95ff3e636716deaa385106694fcc257f82be4fe831fdaed420bba50cf2

                SHA512

                8477c2a94ecbecff9d79d3f73713d568ab29260cd51397f54939629531aa84eeaaffc742bef744da071718b597b15e8870c547cf1dfeb122686bb9e59a7dfd86

              • C:\Users\Admin\AppData\Local\Temp\posterBoxi8knHdvhZwkbe\ZunTSaNJLBVfWeb Data

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84