Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2023, 10:53

General

  • Target

    390a2cb937ec9d3c3b9ffd313f4e7b3b.exe

  • Size

    802KB

  • MD5

    390a2cb937ec9d3c3b9ffd313f4e7b3b

  • SHA1

    e819b151712447c199162477f2ae9ab1be400d31

  • SHA256

    e3bbc860546b1786665d1784b0f0811c3d73dae63afca30759d45c3e22f3d5b4

  • SHA512

    b551eabfcf85fc00f318978a3e1bfb4fade96a7e5d03c7ce0afa14e6b428baa18b87e88cd37ca1efce8487456281b6e62e300711ced9178e2c336d1549e77668

  • SSDEEP

    12288:vKtrEjLmF/l8oBimvYPD1FlsAYtLJp3tPBU3QEQWJ9Ts4HaSv4MehIPViF2cMFqe:ytruAl8oBi

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\390a2cb937ec9d3c3b9ffd313f4e7b3b.exe
    "C:\Users\Admin\AppData\Local\Temp\390a2cb937ec9d3c3b9ffd313f4e7b3b.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2996
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2248
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2664
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 2332
      2⤵
      • Program crash
      PID:2880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

          Filesize

          802KB

          MD5

          390a2cb937ec9d3c3b9ffd313f4e7b3b

          SHA1

          e819b151712447c199162477f2ae9ab1be400d31

          SHA256

          e3bbc860546b1786665d1784b0f0811c3d73dae63afca30759d45c3e22f3d5b4

          SHA512

          b551eabfcf85fc00f318978a3e1bfb4fade96a7e5d03c7ce0afa14e6b428baa18b87e88cd37ca1efce8487456281b6e62e300711ced9178e2c336d1549e77668

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          344B

          MD5

          83dee7ddb7eabdff0bf3dd33bbbee8fe

          SHA1

          4b91b9dc6ccf857513f9685086764a6ca4230b96

          SHA256

          d74d3fe026304ef945d0cedb6c130dd758cea69f97d434d910aa0f45c89a5800

          SHA512

          e9b84063e8e65153bc7439bb69103a122207138711b2d2ca98048d8be4885ae5fbacc8893c143137d995a25c126726be6de16e0785529ea73bed5e1bfb30c15b

        • C:\Users\Admin\AppData\Local\Temp\Cab57D2.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar5881.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • C:\Users\Admin\AppData\Local\Temp\tempAVSjWaO5EiN9zLj\Rf6cA9GffpKkWeb Data

          Filesize

          92KB

          MD5

          be0d10b59d5cdafb1aed2b32b3cd6620

          SHA1

          9619e616c5391c6d38e0c5f58f023a33ef7ad231

          SHA256

          b10adeb400742d7a304eb772a4089fa1c3cd8ca73ad23268b5d283ed237fea64

          SHA512

          a6d0af9cf0a22f987205a458e234b82fbc2760720c80cc95ca08babee21b7480fc5873d335a42f4d9b25754d841057514db50b41995cb1d2a7f832e0e6ea0a11

        • \Users\Admin\AppData\Local\Temp\tempAVSjWaO5EiN9zLj\sqlite3.dll

          Filesize

          791KB

          MD5

          0fe0a178f711b623a8897e4b0bb040d1

          SHA1

          01ea412aeab3d331f825d93d7ee1f5fa6d3c46e6

          SHA256

          0c7cd52abdb6eb3e556d81caac398a127495e4a251ef600e6505a81385a1982d

          SHA512

          6c53c489c4464b9dc9a5dd31c48bb4afa65f7d6df9cc71e705cea2074ebd5e249cad4894eac6f6b308b3574633bc6e1706dfc5fda5f46c27f1e37d21e65fbc54

        • memory/2996-0-0x0000000000E20000-0x0000000000EEE000-memory.dmp

          Filesize

          824KB

        • memory/2996-1-0x0000000074130000-0x000000007481E000-memory.dmp

          Filesize

          6.9MB

        • memory/2996-2-0x0000000000CE0000-0x0000000000D20000-memory.dmp

          Filesize

          256KB

        • memory/2996-116-0x0000000074130000-0x000000007481E000-memory.dmp

          Filesize

          6.9MB

        • memory/2996-117-0x0000000000CE0000-0x0000000000D20000-memory.dmp

          Filesize

          256KB