Analysis

  • max time kernel
    203s
  • max time network
    220s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 08:41

General

  • Target

    39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec.exe

  • Size

    29KB

  • MD5

    21dfeafc97d010ac6621bce05fec35a2

  • SHA1

    153628124344521d76a63464ae00165e7749007a

  • SHA256

    39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec

  • SHA512

    099ce2105c184faef54b4d6860c394b00eff8cbb4453d41ac8d96fa38157da4c97d9eb5597529d3548c5d257efac69a5fd6671f386dc27d22417b011a8d1fc0e

  • SSDEEP

    768:vQv/27NYsDkfZPoIqlHepBKh0p29SgRF2:4m7N143wEKhG29jF2

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

shemo

C2

shemo.no-ip.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 1 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 behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec.exe
    "C:\Users\Admin\AppData\Local\Temp\39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    29KB

    MD5

    21dfeafc97d010ac6621bce05fec35a2

    SHA1

    153628124344521d76a63464ae00165e7749007a

    SHA256

    39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec

    SHA512

    099ce2105c184faef54b4d6860c394b00eff8cbb4453d41ac8d96fa38157da4c97d9eb5597529d3548c5d257efac69a5fd6671f386dc27d22417b011a8d1fc0e

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

    Filesize

    29KB

    MD5

    21dfeafc97d010ac6621bce05fec35a2

    SHA1

    153628124344521d76a63464ae00165e7749007a

    SHA256

    39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec

    SHA512

    099ce2105c184faef54b4d6860c394b00eff8cbb4453d41ac8d96fa38157da4c97d9eb5597529d3548c5d257efac69a5fd6671f386dc27d22417b011a8d1fc0e

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

    Filesize

    29KB

    MD5

    21dfeafc97d010ac6621bce05fec35a2

    SHA1

    153628124344521d76a63464ae00165e7749007a

    SHA256

    39678e8a69e720df9139d2474d78add7f464610ceabfd17b49518427107ab8ec

    SHA512

    099ce2105c184faef54b4d6860c394b00eff8cbb4453d41ac8d96fa38157da4c97d9eb5597529d3548c5d257efac69a5fd6671f386dc27d22417b011a8d1fc0e

  • memory/952-54-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB

  • memory/952-55-0x0000000074500000-0x0000000074AAB000-memory.dmp

    Filesize

    5.7MB

  • memory/952-61-0x0000000074500000-0x0000000074AAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1444-62-0x0000000000000000-mapping.dmp

  • memory/1696-57-0x0000000000000000-mapping.dmp

  • memory/1696-63-0x0000000074500000-0x0000000074AAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1696-65-0x0000000074500000-0x0000000074AAB000-memory.dmp

    Filesize

    5.7MB