Analysis

  • max time kernel
    151s
  • max time network
    83s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 15:49

General

  • Target

    868ef975f2fce5e2058a7097ea6dd3c2bb21a56a8d59207033319eb4a4259788.exe

  • Size

    999KB

  • MD5

    6a64f58c435d14c0321158f786e9f678

  • SHA1

    569ac424bfc990ae89befdb160eaaf2eb00ac630

  • SHA256

    868ef975f2fce5e2058a7097ea6dd3c2bb21a56a8d59207033319eb4a4259788

  • SHA512

    ea93c57fb06fe229a402ad90d03354faf648a501de467c148bbdaa48ad9663a8c6c6103ec2f3db367014e1e693ea9087f7bd168b4f0cfbe240d9060701ed3dad

  • SSDEEP

    24576:Xtb20pkaCqT5TBWgNQ7axv9i3d/soW6A:UVg5tQ7axI3eP5

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HaCkEd

C2

njrat-serv.ddns.net:1177

Mutex

a2b2eed38adf2ef6969163ed40a2f666

Attributes
  • reg_key

    a2b2eed38adf2ef6969163ed40a2f666

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\868ef975f2fce5e2058a7097ea6dd3c2bb21a56a8d59207033319eb4a4259788.exe
    "C:\Users\Admin\AppData\Local\Temp\868ef975f2fce5e2058a7097ea6dd3c2bb21a56a8d59207033319eb4a4259788.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      C:\Users\Admin\AppData\Local\Temp/server.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1112
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:1152
    • C:\Users\Admin\AppData\Local\Temp\program.exe
      C:\Users\Admin\AppData\Local\Temp/program.exe
      2⤵
      • Executes dropped EXE
      PID:1164

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    20KB

    MD5

    dd6d4ea36559e221090f50de0f16d0be

    SHA1

    637d15ae51af9df427f1266a091d32df9de3d53b

    SHA256

    3832bca42f6ebb9d369101912f396299a5201f01e8d9e41654efcad0016611da

    SHA512

    d8b9b03eac12affbb4e2b227755ac59cfc364b39f47ee9255a2e04671987184ffbc2b86fb376b3ef7e021407e50cd7f21d3cfcc4b50ff2d5e485aeb1adfc14e8

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

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

    Filesize

    20KB

    MD5

    dd6d4ea36559e221090f50de0f16d0be

    SHA1

    637d15ae51af9df427f1266a091d32df9de3d53b

    SHA256

    3832bca42f6ebb9d369101912f396299a5201f01e8d9e41654efcad0016611da

    SHA512

    d8b9b03eac12affbb4e2b227755ac59cfc364b39f47ee9255a2e04671987184ffbc2b86fb376b3ef7e021407e50cd7f21d3cfcc4b50ff2d5e485aeb1adfc14e8

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

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

    Filesize

    170KB

    MD5

    75d6ce915360568ef5d42f5e40dd4d05

    SHA1

    22469a08d341541e517eda3eda24b5af343eb991

    SHA256

    3ffec8f445ded9f2f5d5675162114213df85dae29bf3bd55aae99423601955d2

    SHA512

    984b1fb8213e451a5ff7b592dcbca418a0c33e043194626e8496a068229a4ba37ddbc3cfe12ef941c727dfa2e09513b343fe74738fa98953d755d75d9b3b4208

  • memory/940-63-0x00000000002C0000-0x00000000002CC000-memory.dmp

    Filesize

    48KB

  • memory/940-62-0x00000000003E0000-0x000000000041A000-memory.dmp

    Filesize

    232KB

  • memory/940-60-0x0000000000240000-0x0000000000258000-memory.dmp

    Filesize

    96KB

  • memory/940-59-0x0000000001320000-0x0000000001350000-memory.dmp

    Filesize

    192KB

  • memory/940-56-0x0000000000000000-mapping.dmp

  • memory/1112-69-0x0000000000000000-mapping.dmp

  • memory/1112-72-0x0000000000210000-0x0000000000240000-memory.dmp

    Filesize

    192KB

  • memory/1152-74-0x0000000000000000-mapping.dmp

  • memory/1164-65-0x0000000000000000-mapping.dmp

  • memory/1224-54-0x0000000075931000-0x0000000075933000-memory.dmp

    Filesize

    8KB