Analysis

  • max time kernel
    152s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2022 22:20

General

  • Target

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946.exe

  • Size

    127KB

  • MD5

    6b64d2bb3af6922a68eac1b798977f30

  • SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

  • SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

  • SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

  • SSDEEP

    3072:A3XcpefmS+vOxqsNOGTtNg4wIlckXB70K1jyeBaxmlnpt:AcmIvRsNRuJEckXx0KljBM2

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

gulfup.no-ip.biz:1177

Mutex

c13414c5aa99e07b7566246e70d7f2bb

Attributes
  • reg_key

    c13414c5aa99e07b7566246e70d7f2bb

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946.exe
    "C:\Users\Admin\AppData\Local\Temp\afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946.exe
      C:\Users\Admin\AppData\Local\Temp\afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          C:\Users\Admin\AppData\Local\Temp\server.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1736
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:1908

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    127KB

    MD5

    6b64d2bb3af6922a68eac1b798977f30

    SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

    SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

    SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

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

    127KB

    MD5

    6b64d2bb3af6922a68eac1b798977f30

    SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

    SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

    SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

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

    127KB

    MD5

    6b64d2bb3af6922a68eac1b798977f30

    SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

    SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

    SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

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

    127KB

    MD5

    6b64d2bb3af6922a68eac1b798977f30

    SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

    SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

    SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

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

    127KB

    MD5

    6b64d2bb3af6922a68eac1b798977f30

    SHA1

    ab2498ae6276609b06c2d583eee84d00537c8624

    SHA256

    afffe069ebc127a742b56af54543f1ae6e8a13955b0b1812a479a15c59e57946

    SHA512

    76d1d7893e534d39a9115ec6109f25b6eb473fb4ef988c792f957a88d1d8c0b4cd436fab98e20f41bf89bcc2c6d7a567d77f9f7b4c6b007a68d4527f1dafa291

  • memory/1248-84-0x0000000004A35000-0x0000000004A46000-memory.dmp
    Filesize

    68KB

  • memory/1248-83-0x0000000004A35000-0x0000000004A46000-memory.dmp
    Filesize

    68KB

  • memory/1248-73-0x0000000000250000-0x0000000000276000-memory.dmp
    Filesize

    152KB

  • memory/1248-70-0x0000000000000000-mapping.dmp
  • memory/1348-59-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/1348-62-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/1348-60-0x0000000000426B9E-mapping.dmp
  • memory/1348-65-0x00000000001F0000-0x00000000001FC000-memory.dmp
    Filesize

    48KB

  • memory/1348-64-0x0000000000400000-0x000000000042A000-memory.dmp
    Filesize

    168KB

  • memory/1736-77-0x0000000000426B9E-mapping.dmp
  • memory/1908-85-0x0000000000000000-mapping.dmp
  • memory/1976-67-0x0000000004B15000-0x0000000004B26000-memory.dmp
    Filesize

    68KB

  • memory/1976-54-0x00000000010A0000-0x00000000010C6000-memory.dmp
    Filesize

    152KB

  • memory/1976-58-0x00000000003B0000-0x00000000003BA000-memory.dmp
    Filesize

    40KB

  • memory/1976-57-0x00000000049D0000-0x0000000004B08000-memory.dmp
    Filesize

    1.2MB

  • memory/1976-66-0x0000000004B15000-0x0000000004B26000-memory.dmp
    Filesize

    68KB

  • memory/1976-56-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
    Filesize

    8KB

  • memory/1976-55-0x0000000000360000-0x0000000000372000-memory.dmp
    Filesize

    72KB