Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/12/2023, 00:09

General

  • Target

    64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe

  • Size

    1.6MB

  • MD5

    db7caaded0a72795a34470b0d50fadf3

  • SHA1

    a81b9870c0994ee3a07c34e5aa53b53bd910dcd1

  • SHA256

    64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629

  • SHA512

    300ce34b908f06969f2efa7305fd41c5b21029033a925be3e095bd72b736f80ca54e4d819372e7cd5a236c54dc3e8f7846c09ae6b5d34983df64646b569f8267

  • 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\64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe
    "C:\Users\Admin\AppData\Local\Temp\64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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:4492
    • 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:436
    • 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:1724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1680
      2⤵
      • Program crash
      PID:2588
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:3848
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:2128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4492 -ip 4492
        1⤵
          PID:3584

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                db7caaded0a72795a34470b0d50fadf3

                SHA1

                a81b9870c0994ee3a07c34e5aa53b53bd910dcd1

                SHA256

                64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629

                SHA512

                300ce34b908f06969f2efa7305fd41c5b21029033a925be3e095bd72b736f80ca54e4d819372e7cd5a236c54dc3e8f7846c09ae6b5d34983df64646b569f8267

              • C:\Users\Admin\AppData\Local\Temp\grandUIAzQ8OZKniD4kaV\information.txt

                Filesize

                3KB

                MD5

                479d509a566834a0ab23c7b26d4bb380

                SHA1

                15004d61b99e0380f2f1362c6272117c487548ef

                SHA256

                5d9f48d3eb1cd15aa0e9d0dc6b5c69f87b0b64897b9244ebe9c4beff817bb0d8

                SHA512

                a339eaf04ad282a62aca18225a308945964867da607cf575d0ab27fd6a43a5ab38e408c4bc92d6d1e7a5fe1584ca6d61d9d2ffdd2e778542d0a1c4ca1d85bb9b

              • C:\Users\Admin\AppData\Local\Temp\posterBoxzQ8OZKniD4kaV\QdX9ITDLyCRBWeb Data

                Filesize

                92KB

                MD5

                ce7f99b32cf0d8473697dfcf8fdcc1d7

                SHA1

                001451a4f514f593a55bcf2c50a3a22a926a7231

                SHA256

                8a57ebc2f09a2c28da6e9bfd41e48953d06c99dddc7103df08fefe90d446d350

                SHA512

                20be27aec29b8666654a8ff2ec43738e2727073611fa085a26c672f36c04e42b0688b1c146b23c3d188a2f9a5483b9a057064ae7a293064caba2dbd55bf81767

              • C:\Users\Admin\AppData\Local\Temp\posterBoxzQ8OZKniD4kaV\ZunTSaNJLBVfWeb Data

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84