Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29-09-2021 09:08

General

  • Target

    15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe

  • Size

    51KB

  • MD5

    0a9af90d289135ef065a62a0dda8602f

  • SHA1

    12d4ecffca285a1aeb9eca710cca16c71f4231d1

  • SHA256

    15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c

  • SHA512

    730ad58241099b2aadbea6f7a9c90235c849f934877a2fc7cd7f9ed12ac015dd5c830c296f68b0fcbd811a9757c560d05a971b41b53a55b5455e75a662032128

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

jinn

C2

mouhamedjinn2.ddns.net:1177

Mutex

9174f01a6e44cbc9af1239d5bb1d7327

Attributes
  • reg_key

    9174f01a6e44cbc9af1239d5bb1d7327

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe
    "C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:568
    • C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe
      "C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe"
      2⤵
        PID:900
      • C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe
        "C:\Users\Admin\AppData\Local\Temp\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:988
        • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
          "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1292
          • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
            "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
            4⤵
            • Executes dropped EXE
            PID:1644
          • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
            "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1616
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Chrome.exe" "Chrome.exe" ENABLE
              5⤵
                PID:2140

      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\Microsoft\CLR_v4.0_32\UsageLogs\15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c.exe.log
        MD5

        4b1382f82cb506f36d30c01d5d515bca

        SHA1

        621aeafd1d115a27c71dd58c6211716c9640aba6

        SHA256

        d01a9a6d2f90166ffccd93ebf12c3ba6dd2ab12a9c047a6449d5968cc92d4200

        SHA512

        8700fd86011f3af3467ccb6c6d6c56f4004aada7a82186047dbba1cb01c3a2344213ecb1f1c67f3e20d269a79b0e61238b043a363047b050eecbd84bba4e65a5

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Chrome.exe.log
        MD5

        4b1382f82cb506f36d30c01d5d515bca

        SHA1

        621aeafd1d115a27c71dd58c6211716c9640aba6

        SHA256

        d01a9a6d2f90166ffccd93ebf12c3ba6dd2ab12a9c047a6449d5968cc92d4200

        SHA512

        8700fd86011f3af3467ccb6c6d6c56f4004aada7a82186047dbba1cb01c3a2344213ecb1f1c67f3e20d269a79b0e61238b043a363047b050eecbd84bba4e65a5

      • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
        MD5

        0a9af90d289135ef065a62a0dda8602f

        SHA1

        12d4ecffca285a1aeb9eca710cca16c71f4231d1

        SHA256

        15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c

        SHA512

        730ad58241099b2aadbea6f7a9c90235c849f934877a2fc7cd7f9ed12ac015dd5c830c296f68b0fcbd811a9757c560d05a971b41b53a55b5455e75a662032128

      • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
        MD5

        0a9af90d289135ef065a62a0dda8602f

        SHA1

        12d4ecffca285a1aeb9eca710cca16c71f4231d1

        SHA256

        15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c

        SHA512

        730ad58241099b2aadbea6f7a9c90235c849f934877a2fc7cd7f9ed12ac015dd5c830c296f68b0fcbd811a9757c560d05a971b41b53a55b5455e75a662032128

      • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
        MD5

        0a9af90d289135ef065a62a0dda8602f

        SHA1

        12d4ecffca285a1aeb9eca710cca16c71f4231d1

        SHA256

        15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c

        SHA512

        730ad58241099b2aadbea6f7a9c90235c849f934877a2fc7cd7f9ed12ac015dd5c830c296f68b0fcbd811a9757c560d05a971b41b53a55b5455e75a662032128

      • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
        MD5

        0a9af90d289135ef065a62a0dda8602f

        SHA1

        12d4ecffca285a1aeb9eca710cca16c71f4231d1

        SHA256

        15613d4d6864d22409277e56eff01c2b04e83562dd70f3fee12c675621a5971c

        SHA512

        730ad58241099b2aadbea6f7a9c90235c849f934877a2fc7cd7f9ed12ac015dd5c830c296f68b0fcbd811a9757c560d05a971b41b53a55b5455e75a662032128

      • memory/568-116-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
        Filesize

        4KB

      • memory/568-117-0x00000000025B0000-0x00000000025B1000-memory.dmp
        Filesize

        4KB

      • memory/568-118-0x0000000002580000-0x0000000002584000-memory.dmp
        Filesize

        16KB

      • memory/568-119-0x0000000005190000-0x0000000005191000-memory.dmp
        Filesize

        4KB

      • memory/568-114-0x0000000000320000-0x0000000000321000-memory.dmp
        Filesize

        4KB

      • memory/988-120-0x0000000000400000-0x000000000040C000-memory.dmp
        Filesize

        48KB

      • memory/988-121-0x000000000040748E-mapping.dmp
      • memory/1292-127-0x0000000000000000-mapping.dmp
      • memory/1292-144-0x0000000005160000-0x0000000005161000-memory.dmp
        Filesize

        4KB

      • memory/1616-137-0x000000000040748E-mapping.dmp
      • memory/1616-146-0x0000000004E10000-0x0000000004E11000-memory.dmp
        Filesize

        4KB

      • memory/1616-147-0x0000000004CE0000-0x00000000051DE000-memory.dmp
        Filesize

        5.0MB

      • memory/1616-148-0x0000000004D90000-0x0000000004D91000-memory.dmp
        Filesize

        4KB

      • memory/2140-145-0x0000000000000000-mapping.dmp