Analysis

  • max time kernel
    115s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    01-08-2021 02:02

General

  • Target

    E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe

  • Size

    220KB

  • MD5

    97cb3fda3cff430377a866d6b437de8f

  • SHA1

    2359c8459c1e1dd133c2842b51d2982e63016f92

  • SHA256

    e6507f36045c13dee736bea44d61e90169ea69de61e9dc50b5743960c5b8f85a

  • SHA512

    e192d3afaa093b5b11643aafefa8192cfeb79e5f284e6c757532fd3e2a4a93970f5f8d54b0e983b4c406ced46aee04a99c186f31ff321f9292c51587603c630f

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

Bot

C2

http://furyx.de/panel

Mutex

BN[c1916af6f3a468e5b6f5c7f6b9c78982]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    e162b1333458a713bc6916cc8ac4110c

  • startup

    false

  • usb_spread

    true

aes.plain

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET Payload 3 IoCs
  • Contains code to disable Windows Defender 3 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • UAC bypass 3 TTPs
  • Executes dropped EXE 4 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe
    "C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe
      "C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Users\Admin\AppData\Local\Temp\furz.exe
        "C:\Users\Admin\AppData\Local\Temp\furz.exe"
        3⤵
        • Executes dropped EXE
        • Windows security modification
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1772
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell" Get-MpPreference -verbose
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1904
        • C:\Windows\system32\schtasks.exe
          "schtasks" /delete /tn "WindowsUpdate.exe" /f
          4⤵
            PID:1644
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 1772 -s 1096
            4⤵
            • Program crash
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:564
        • C:\Users\Admin\AppData\Local\Temp\UacTest.exe
          "C:\Users\Admin\AppData\Local\Temp\UacTest.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:824
          • C:\Users\Admin\AppData\Local\Temp\Inpwdja.exe
            "C:\Users\Admin\AppData\Local\Temp\Inpwdja.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:732
            • C:\Windows\system32\cmd.exe
              "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\13FE.tmp\13FF.tmp\1400.bat C:\Users\Admin\AppData\Local\Temp\Inpwdja.exe"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1824
              • C:\Windows\System32\cmd.exe
                C:\Windows\System32\cmd.exe /k C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:1644
                • C:\Windows\System32\reg.exe
                  C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                  7⤵
                  • Modifies registry key
                  PID:1620
          • C:\Users\Admin\AppData\Local\Temp\Mnrjvryib.exe
            "C:\Users\Admin\AppData\Local\Temp\Mnrjvryib.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:472
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd" /c "C:\Users\Admin\AppData\Local\Temp\141D.tmp\141E.tmp\142E.bat C:\Users\Admin\AppData\Local\Temp\Mnrjvryib.exe"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1544
              • C:\Windows\SysWOW64\taskkill.exe
                Taskkill /IM cmd.exe /F
                6⤵
                • Kills process with taskkill
                • Suspicious use of AdjustPrivilegeToken
                PID:1636
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 100 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe"& ping 1.1.1.1 -n 1 -w 900 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\E6507F36045C13DEE736BEA44D61E90169EA69DE61E9D.exe"
          3⤵
          • Deletes itself
          • Suspicious use of WriteProcessMemory
          PID:1392
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 100
            4⤵
            • Runs ping.exe
            PID:1580
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 900
            4⤵
            • Runs ping.exe
            PID:1452

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\13FE.tmp\13FF.tmp\1400.bat

      MD5

      befbbfdadeef80e445fdd152a121a6d1

      SHA1

      67019f2a12662f2ff92dc7977769b0debdbf564e

      SHA256

      0848f1ac65974856844e59ff3b8d492c88acf43f0fd64505d5bf3fd4e43d9da6

      SHA512

      867c4ee6cb22ba7ba0d5aa9c16d321f36013588b6057e3f3f0e6de670481ab1f7d46c1553b9410ff753de7e923d1b774db0c8297091fd9c852bdc96fee43ee32

    • C:\Users\Admin\AppData\Local\Temp\141D.tmp\141E.tmp\142E.bat

      MD5

      4f4ecd10fc86be6be730390c06be67c8

      SHA1

      4c59c25907109fd48d8d94caaa8b8266ffa3c7c3

      SHA256

      a9bf329ec3514d7d5698851137d508b763b1a627747b1ce40ddd5c524538459c

      SHA512

      b4e89c807071e770b9327693032c8d1ebc06811dfeccfe0892e00deb449b75cb5d921ed2f7ae53d3fae00837bd6eed3fcb0bfc7168cad0f0c44997e51e4365f9

    • C:\Users\Admin\AppData\Local\Temp\Inpwdja.exe

      MD5

      d1082e6ae11fecd45ebe0f2b3d32230d

      SHA1

      c070a8395ccb984f5bcd8f22629ffa1b41ea14c1

      SHA256

      dce696122649ef915c08645cf53e6b118977ce476b076f72d00e3b6f3e309c77

      SHA512

      d712276a263e77617838a709e4a8d6b18a676832e909f0ab5547d22a128c309c92dc0f1044c62c0782c3f9f3e2103c08dd9eaf6166f17fd7f0165490e17c0ca3

    • C:\Users\Admin\AppData\Local\Temp\Inpwdja.exe

      MD5

      d1082e6ae11fecd45ebe0f2b3d32230d

      SHA1

      c070a8395ccb984f5bcd8f22629ffa1b41ea14c1

      SHA256

      dce696122649ef915c08645cf53e6b118977ce476b076f72d00e3b6f3e309c77

      SHA512

      d712276a263e77617838a709e4a8d6b18a676832e909f0ab5547d22a128c309c92dc0f1044c62c0782c3f9f3e2103c08dd9eaf6166f17fd7f0165490e17c0ca3

    • C:\Users\Admin\AppData\Local\Temp\Mnrjvryib.exe

      MD5

      5303046dacbdfcb013ff016a72311e22

      SHA1

      deaef4843f0bfcb1bf57a93a9e5ed1c4a7a1e009

      SHA256

      46618b299010b375a3be43493d14de102180a042f03bdfa1d3290d04feba587a

      SHA512

      261f76a0c02366ca31ec4e964bb414bf6c42587eea79079beb4b6c66875f565ff925d45722b40c84fdd6ac844dad1d878381f87d8b28af75a98310f534af2b1b

    • C:\Users\Admin\AppData\Local\Temp\Mnrjvryib.exe

      MD5

      5303046dacbdfcb013ff016a72311e22

      SHA1

      deaef4843f0bfcb1bf57a93a9e5ed1c4a7a1e009

      SHA256

      46618b299010b375a3be43493d14de102180a042f03bdfa1d3290d04feba587a

      SHA512

      261f76a0c02366ca31ec4e964bb414bf6c42587eea79079beb4b6c66875f565ff925d45722b40c84fdd6ac844dad1d878381f87d8b28af75a98310f534af2b1b

    • C:\Users\Admin\AppData\Local\Temp\UacTest.exe

      MD5

      7c011f0ea2387f0124c959e3f663cb4d

      SHA1

      12e668079661c557963236786bb821af4628ee1b

      SHA256

      6b69a8fd83ca150642a20128f84cdd2e91aaa6852e705e55e4116caa487903c4

      SHA512

      f5770246c943a997c96713a721d512fc0eaf530f3b7d22abe56f50d35b582af4b9f86a65113dee0f09aa7766d257ac0b29a9a56348891339399a2923b399925e

    • C:\Users\Admin\AppData\Local\Temp\UacTest.exe

      MD5

      7c011f0ea2387f0124c959e3f663cb4d

      SHA1

      12e668079661c557963236786bb821af4628ee1b

      SHA256

      6b69a8fd83ca150642a20128f84cdd2e91aaa6852e705e55e4116caa487903c4

      SHA512

      f5770246c943a997c96713a721d512fc0eaf530f3b7d22abe56f50d35b582af4b9f86a65113dee0f09aa7766d257ac0b29a9a56348891339399a2923b399925e

    • C:\Users\Admin\AppData\Local\Temp\furz.exe

      MD5

      b72d429d1d690165c7b0de4a074c4a58

      SHA1

      f0704d227482a80f2f90dab79ed4acd9770fe565

      SHA256

      b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae

      SHA512

      f3b565e67d5a15d5305982701bd5f0d37eec0bfe2d152556584fa1d01faf1def6e616d0addea91e0663be084450b49f99e2108cc06a9b50c9e1482f9290b6c5c

    • C:\Users\Admin\AppData\Local\Temp\furz.exe

      MD5

      b72d429d1d690165c7b0de4a074c4a58

      SHA1

      f0704d227482a80f2f90dab79ed4acd9770fe565

      SHA256

      b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae

      SHA512

      f3b565e67d5a15d5305982701bd5f0d37eec0bfe2d152556584fa1d01faf1def6e616d0addea91e0663be084450b49f99e2108cc06a9b50c9e1482f9290b6c5c

    • \Users\Admin\AppData\Local\Temp\Inpwdja.exe

      MD5

      d1082e6ae11fecd45ebe0f2b3d32230d

      SHA1

      c070a8395ccb984f5bcd8f22629ffa1b41ea14c1

      SHA256

      dce696122649ef915c08645cf53e6b118977ce476b076f72d00e3b6f3e309c77

      SHA512

      d712276a263e77617838a709e4a8d6b18a676832e909f0ab5547d22a128c309c92dc0f1044c62c0782c3f9f3e2103c08dd9eaf6166f17fd7f0165490e17c0ca3

    • \Users\Admin\AppData\Local\Temp\Inpwdja.exe

      MD5

      d1082e6ae11fecd45ebe0f2b3d32230d

      SHA1

      c070a8395ccb984f5bcd8f22629ffa1b41ea14c1

      SHA256

      dce696122649ef915c08645cf53e6b118977ce476b076f72d00e3b6f3e309c77

      SHA512

      d712276a263e77617838a709e4a8d6b18a676832e909f0ab5547d22a128c309c92dc0f1044c62c0782c3f9f3e2103c08dd9eaf6166f17fd7f0165490e17c0ca3

    • \Users\Admin\AppData\Local\Temp\Mnrjvryib.exe

      MD5

      5303046dacbdfcb013ff016a72311e22

      SHA1

      deaef4843f0bfcb1bf57a93a9e5ed1c4a7a1e009

      SHA256

      46618b299010b375a3be43493d14de102180a042f03bdfa1d3290d04feba587a

      SHA512

      261f76a0c02366ca31ec4e964bb414bf6c42587eea79079beb4b6c66875f565ff925d45722b40c84fdd6ac844dad1d878381f87d8b28af75a98310f534af2b1b

    • \Users\Admin\AppData\Local\Temp\Mnrjvryib.exe

      MD5

      5303046dacbdfcb013ff016a72311e22

      SHA1

      deaef4843f0bfcb1bf57a93a9e5ed1c4a7a1e009

      SHA256

      46618b299010b375a3be43493d14de102180a042f03bdfa1d3290d04feba587a

      SHA512

      261f76a0c02366ca31ec4e964bb414bf6c42587eea79079beb4b6c66875f565ff925d45722b40c84fdd6ac844dad1d878381f87d8b28af75a98310f534af2b1b

    • \Users\Admin\AppData\Local\Temp\UacTest.exe

      MD5

      7c011f0ea2387f0124c959e3f663cb4d

      SHA1

      12e668079661c557963236786bb821af4628ee1b

      SHA256

      6b69a8fd83ca150642a20128f84cdd2e91aaa6852e705e55e4116caa487903c4

      SHA512

      f5770246c943a997c96713a721d512fc0eaf530f3b7d22abe56f50d35b582af4b9f86a65113dee0f09aa7766d257ac0b29a9a56348891339399a2923b399925e

    • \Users\Admin\AppData\Local\Temp\furz.exe

      MD5

      b72d429d1d690165c7b0de4a074c4a58

      SHA1

      f0704d227482a80f2f90dab79ed4acd9770fe565

      SHA256

      b30eebf734354f55373978e395c912393f3c674aaa4717748ae449b09832f6ae

      SHA512

      f3b565e67d5a15d5305982701bd5f0d37eec0bfe2d152556584fa1d01faf1def6e616d0addea91e0663be084450b49f99e2108cc06a9b50c9e1482f9290b6c5c

    • memory/472-94-0x0000000000000000-mapping.dmp

    • memory/564-135-0x0000000000000000-mapping.dmp

    • memory/564-149-0x00000000005A0000-0x00000000005A1000-memory.dmp

      Filesize

      4KB

    • memory/732-95-0x0000000075551000-0x0000000075553000-memory.dmp

      Filesize

      8KB

    • memory/732-90-0x0000000000000000-mapping.dmp

    • memory/788-60-0x0000000000130000-0x0000000000131000-memory.dmp

      Filesize

      4KB

    • memory/788-63-0x00000000003F0000-0x00000000003F3000-memory.dmp

      Filesize

      12KB

    • memory/788-62-0x0000000004840000-0x0000000004841000-memory.dmp

      Filesize

      4KB

    • memory/824-80-0x0000000000400000-0x0000000000401000-memory.dmp

      Filesize

      4KB

    • memory/824-85-0x00000000049B0000-0x00000000049B1000-memory.dmp

      Filesize

      4KB

    • memory/824-77-0x0000000000000000-mapping.dmp

    • memory/1392-82-0x0000000000000000-mapping.dmp

    • memory/1452-84-0x0000000000000000-mapping.dmp

    • memory/1544-99-0x0000000000000000-mapping.dmp

    • memory/1580-83-0x0000000000000000-mapping.dmp

    • memory/1620-103-0x0000000000000000-mapping.dmp

    • memory/1636-104-0x0000000000000000-mapping.dmp

    • memory/1644-101-0x0000000000000000-mapping.dmp

    • memory/1644-132-0x0000000000000000-mapping.dmp

    • memory/1772-146-0x000000001B141000-0x000000001B142000-memory.dmp

      Filesize

      4KB

    • memory/1772-139-0x000000001B13A000-0x000000001B13B000-memory.dmp

      Filesize

      4KB

    • memory/1772-71-0x0000000000000000-mapping.dmp

    • memory/1772-74-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB

    • memory/1772-148-0x000000001B143000-0x000000001B144000-memory.dmp

      Filesize

      4KB

    • memory/1772-105-0x000000001B114000-0x000000001B115000-memory.dmp

      Filesize

      4KB

    • memory/1772-106-0x000000001B119000-0x000000001B138000-memory.dmp

      Filesize

      124KB

    • memory/1772-137-0x000000001B138000-0x000000001B139000-memory.dmp

      Filesize

      4KB

    • memory/1772-138-0x000000001B139000-0x000000001B13A000-memory.dmp

      Filesize

      4KB

    • memory/1772-86-0x000000001B110000-0x000000001B112000-memory.dmp

      Filesize

      8KB

    • memory/1772-140-0x000000001B13B000-0x000000001B13C000-memory.dmp

      Filesize

      4KB

    • memory/1772-141-0x000000001B13C000-0x000000001B13D000-memory.dmp

      Filesize

      4KB

    • memory/1772-142-0x000000001B13D000-0x000000001B13E000-memory.dmp

      Filesize

      4KB

    • memory/1772-143-0x000000001B13E000-0x000000001B13F000-memory.dmp

      Filesize

      4KB

    • memory/1772-144-0x000000001B13F000-0x000000001B140000-memory.dmp

      Filesize

      4KB

    • memory/1772-145-0x000000001B140000-0x000000001B141000-memory.dmp

      Filesize

      4KB

    • memory/1772-87-0x000000001B112000-0x000000001B113000-memory.dmp

      Filesize

      4KB

    • memory/1772-147-0x000000001B142000-0x000000001B143000-memory.dmp

      Filesize

      4KB

    • memory/1824-97-0x0000000000000000-mapping.dmp

    • memory/1904-109-0x0000000002360000-0x0000000002361000-memory.dmp

      Filesize

      4KB

    • memory/1904-68-0x00000000042D0000-0x00000000042D1000-memory.dmp

      Filesize

      4KB

    • memory/1904-66-0x0000000000400000-0x0000000000432000-memory.dmp

      Filesize

      200KB

    • memory/1904-64-0x0000000000400000-0x0000000000432000-memory.dmp

      Filesize

      200KB

    • memory/1904-131-0x000000001ABB0000-0x000000001ABB1000-memory.dmp

      Filesize

      4KB

    • memory/1904-130-0x000000001ABA0000-0x000000001ABA1000-memory.dmp

      Filesize

      4KB

    • memory/1904-118-0x000000001AB30000-0x000000001AB31000-memory.dmp

      Filesize

      4KB

    • memory/1904-65-0x000000000042C00E-mapping.dmp

    • memory/1904-115-0x00000000028B0000-0x00000000028B1000-memory.dmp

      Filesize

      4KB

    • memory/1904-114-0x0000000002870000-0x0000000002871000-memory.dmp

      Filesize

      4KB

    • memory/1904-113-0x000000001AC04000-0x000000001AC06000-memory.dmp

      Filesize

      8KB

    • memory/1904-112-0x000000001AC00000-0x000000001AC02000-memory.dmp

      Filesize

      8KB

    • memory/1904-111-0x0000000002540000-0x0000000002541000-memory.dmp

      Filesize

      4KB

    • memory/1904-110-0x000000001AC80000-0x000000001AC81000-memory.dmp

      Filesize

      4KB

    • memory/1904-69-0x00000000042D5000-0x00000000042E6000-memory.dmp

      Filesize

      68KB

    • memory/1904-108-0x000007FEFBC81000-0x000007FEFBC83000-memory.dmp

      Filesize

      8KB

    • memory/1904-107-0x0000000000000000-mapping.dmp