Analysis

  • max time kernel
    141s
  • max time network
    127s
  • 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, 23:31

General

  • Target

    1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe

  • Size

    1.6MB

  • MD5

    d6549c6dd3281b5b1ff67d9e2bd3c98b

  • SHA1

    30007f23e0469621a05c00ce27f12ca96f827d5b

  • SHA256

    1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5

  • SHA512

    8776b0f84b6b3e49d3fdc6248ca005a669ab350b88a1ca6732cd765c74ee35c3872173fe8313b3603f621207392710b3addca898c7c65fc89461841e5243902f

  • 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\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe
    "C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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:2272
    • 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:516
    • 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:4572
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 1684
      2⤵
      • Program crash
      PID:3056
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4908
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4528
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2272 -ip 2272
        1⤵
          PID:3404

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                d6549c6dd3281b5b1ff67d9e2bd3c98b

                SHA1

                30007f23e0469621a05c00ce27f12ca96f827d5b

                SHA256

                1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5

                SHA512

                8776b0f84b6b3e49d3fdc6248ca005a669ab350b88a1ca6732cd765c74ee35c3872173fe8313b3603f621207392710b3addca898c7c65fc89461841e5243902f

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

                Filesize

                3KB

                MD5

                495667a5660839086f774f0bdbd9b5fb

                SHA1

                4586f55664d146c890a70c62d916effa8dca0b9f

                SHA256

                2184db68bdb4d644dc8b8dbc0aa5f0cc5f3e37f846eba319369c3ec077f321ed

                SHA512

                0c653a3ec0f2da316a42d34fb1a4bdd90dc85d5e09433ef52b964a1774b766983de8972e95731a6bbac59c00555104fca067212ccc93b20fdef9fc006d54488c

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

                Filesize

                92KB

                MD5

                5bca7f96843d97e2c39afbb8b5f9865b

                SHA1

                e64666a5d705a768e2351621577a386400111251

                SHA256

                e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2

                SHA512

                40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

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

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84