Analysis

  • max time kernel
    148s
  • 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, 23:20

General

  • Target

    44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe

  • Size

    1.6MB

  • MD5

    2f4002e56b116aaeab131a8f1d287a0f

  • SHA1

    658bde9515168748470c63cdcca8406e41932ce5

  • SHA256

    44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e

  • SHA512

    0baeec3b2ee16cbce0156e0eb40f3db6989cb801d914e34f895b800b365708aac38a28f15175c9a736e3aa69f92cb5c84d8a46a80478abb6b90fbf0fdc249d73

  • 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\44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe
    "C:\Users\Admin\AppData\Local\Temp\44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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:2716
    • 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:1152
    • 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:2308
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 1716
      2⤵
      • Program crash
      PID:3676
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4916
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1644
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2716 -ip 2716
        1⤵
          PID:1772

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                2f4002e56b116aaeab131a8f1d287a0f

                SHA1

                658bde9515168748470c63cdcca8406e41932ce5

                SHA256

                44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e

                SHA512

                0baeec3b2ee16cbce0156e0eb40f3db6989cb801d914e34f895b800b365708aac38a28f15175c9a736e3aa69f92cb5c84d8a46a80478abb6b90fbf0fdc249d73

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

                Filesize

                3KB

                MD5

                07240845224b0f970a8a67ba21db4fa9

                SHA1

                669f4c97034b3e09691ec7ffdce2c8742758d62f

                SHA256

                22ac3ee9312226146cdbaac25bff17b3a731a5a37fbe6b0f5fbdc6380b65bdad

                SHA512

                8ac0a04efb811c7ddf842c16b29ff04b382808c83ea32874d47d720916fed57ae31607c91207f49492c8ab82048c57565790bf5eb74ead760948788602e969e9

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

                Filesize

                92KB

                MD5

                9ee081ca0d9c3cd479031e1ff265961b

                SHA1

                a2bfa65a2ddcd529a134ea08efd6965bcd0e5665

                SHA256

                2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4

                SHA512

                6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

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

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84