Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2023, 21:41

General

  • Target

    456461888bab9a61cde6ba1a40df4e1d54a34c2d69249850db119cb73325be5d.exe

  • Size

    1.6MB

  • MD5

    1dd7c237a2aadb227a5ae250b7807145

  • SHA1

    187acc4da9feba2c75f9f13f3d422df3de9bac1f

  • SHA256

    456461888bab9a61cde6ba1a40df4e1d54a34c2d69249850db119cb73325be5d

  • SHA512

    13b2ea66998666c4dc94c9594cd4085a3efe376a7d29eb9fbab12893245280a21c3dbbb40ef634d02c0f0a7e5fbf3da2b92434bdef55000156a91723405ccbca

  • 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\456461888bab9a61cde6ba1a40df4e1d54a34c2d69249850db119cb73325be5d.exe
    "C:\Users\Admin\AppData\Local\Temp\456461888bab9a61cde6ba1a40df4e1d54a34c2d69249850db119cb73325be5d.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:5096
    • 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:4900
    • 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:2444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5096 -s 1564
      2⤵
      • Program crash
      PID:2416
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:888
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5096 -ip 5096
        1⤵
          PID:2488

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                1dd7c237a2aadb227a5ae250b7807145

                SHA1

                187acc4da9feba2c75f9f13f3d422df3de9bac1f

                SHA256

                456461888bab9a61cde6ba1a40df4e1d54a34c2d69249850db119cb73325be5d

                SHA512

                13b2ea66998666c4dc94c9594cd4085a3efe376a7d29eb9fbab12893245280a21c3dbbb40ef634d02c0f0a7e5fbf3da2b92434bdef55000156a91723405ccbca

              • C:\Users\Admin\AppData\Local\Temp\grandUIAw81T9Bq_2vIka\information.txt

                Filesize

                3KB

                MD5

                0b9ad29a9c9a095b5639270e72e98ff2

                SHA1

                c9bae168aa3fba920602272c4ec31eedf583abcc

                SHA256

                76738a7c6cc5864748157aa944497009849baf519c38a1d521d8390addaa4807

                SHA512

                a0aad22f82d2b1d77c6da745151b8e5d462ff4a3b828b2dc44d3bc5db9de0d6d20577d2c4e074347774c305e15abceaa22fc88f0273c3710122cb1df2f380400

              • C:\Users\Admin\AppData\Local\Temp\posterBoxw81T9Bq_2vIka\QdX9ITDLyCRBWeb Data

                Filesize

                92KB

                MD5

                9ee081ca0d9c3cd479031e1ff265961b

                SHA1

                a2bfa65a2ddcd529a134ea08efd6965bcd0e5665

                SHA256

                2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4

                SHA512

                6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

              • C:\Users\Admin\AppData\Local\Temp\posterBoxw81T9Bq_2vIka\ZunTSaNJLBVfWeb Data

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84