Resubmissions

21-10-2021 09:41

211021-lntfvsahfn 10

14-11-2020 18:23

201114-kdmqjxwkme 10

Analysis

  • max time kernel
    130s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-11-2020 18:23

General

  • Target

    80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe

  • Size

    273KB

  • MD5

    54cd7479c93e54ce8c9784b8b1a0392b

  • SHA1

    c3e15e023c4ae835789b82befbe328ae137417ea

  • SHA256

    80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764

  • SHA512

    cea67d7c1094b107a83c607196d9d4d16e0d7d6b7e5cdaa81d83e52422a9194203680d65b44c106c46a8e47dc6251fe292930e9fcc8b757b7d5242383286afbb

Malware Config

Extracted

Family

ursnif

Attributes
  • dga_base_url

  • dga_crc

    0

  • dga_season

    0

  • dga_tlds

  • dns_servers

Signatures

  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • Ursnif, Dreambot

    Ursnif is a variant of the Gozi IFSB with more capabilities.

  • ServiceHost packer 1 IoCs

    Detects ServiceHost packer used for .NET malware

  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2828
    • C:\Users\Admin\AppData\Local\Temp\80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe
      "C:\Users\Admin\AppData\Local\Temp\80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6F02\3781.bat" "C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2708
        • C:\Windows\SysWOW64\cmd.exe
          cmd /C ""C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE""
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3880
          • C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe
            "C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe" "C:\Users\Admin\AppData\Local\Temp\80E3A5~1.EXE"
            5⤵
            • Executes dropped EXE
            • Deletes itself
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2916
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:2684
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:3556

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\6F02\3781.bat

      MD5

      acd828c2cf6bd72cb5e3209ac69b113d

      SHA1

      16017b14f9939a31ac5005a15a4429a60548293c

      SHA256

      15892606e2174b535fff50c934295a9bc5cb797ee0b8ddea2e5b8772fb52f880

      SHA512

      5017b2aa690ddb9974f73f13a0d51dc41f3e50ecb560583ded0d475b6259ee6d174a0814bf00cf3835d928ced010a570b8cf605f6d95127647c9b5be325f60bd

    • C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe

      MD5

      54cd7479c93e54ce8c9784b8b1a0392b

      SHA1

      c3e15e023c4ae835789b82befbe328ae137417ea

      SHA256

      80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764

      SHA512

      cea67d7c1094b107a83c607196d9d4d16e0d7d6b7e5cdaa81d83e52422a9194203680d65b44c106c46a8e47dc6251fe292930e9fcc8b757b7d5242383286afbb

    • C:\Users\Admin\AppData\Roaming\capicatq\ACCTlg32.exe

      MD5

      54cd7479c93e54ce8c9784b8b1a0392b

      SHA1

      c3e15e023c4ae835789b82befbe328ae137417ea

      SHA256

      80e3a54e37f5e83b8bdab98b2ca765baaecb72c303fe44bc85ab85e7ece76764

      SHA512

      cea67d7c1094b107a83c607196d9d4d16e0d7d6b7e5cdaa81d83e52422a9194203680d65b44c106c46a8e47dc6251fe292930e9fcc8b757b7d5242383286afbb

    • memory/2684-6-0x0000000000000000-mapping.dmp

    • memory/2684-8-0x000000C4DB17E000-mapping.dmp

    • memory/2684-9-0x00000268A3030000-0x00000268A30C6000-memory.dmp

      Filesize

      600KB

    • memory/2708-0-0x0000000000000000-mapping.dmp

    • memory/2828-10-0x0000000003450000-0x00000000034E6000-memory.dmp

      Filesize

      600KB

    • memory/2916-3-0x0000000000000000-mapping.dmp

    • memory/2916-7-0x00000000029B0000-0x0000000002A46000-memory.dmp

      Filesize

      600KB

    • memory/3880-2-0x0000000000000000-mapping.dmp