Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2022 22:53

General

  • Target

    7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c.exe

  • Size

    23KB

  • MD5

    51a36bce2022f66cdabb97df479bd850

  • SHA1

    68397ef3c39c3a45c1e1837bf7da1f1c8fe421f3

  • SHA256

    7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c

  • SHA512

    ce0a17bf36f042ef5c43015980029787247e1eb1dd2c1e6f07f073a3a65e13e25199b0c5816a55e03c06ec566b499afb3c8f5bc54ef21c353b685328892c513a

  • SSDEEP

    384:IKQ+ILgIbOprgPsUOSU0kB1kd6dg7GYh/JomRvR6JZlbw8hqIusZzZ4+:8LL6MVU0NRpcnuk

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

ad93.myq-see.com:1177

Mutex

2100c8d153b7aee33b7df3db233ea562

Attributes
  • reg_key

    2100c8d153b7aee33b7df3db233ea562

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 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 use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c.exe
    "C:\Users\Admin\AppData\Local\Temp\7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Users\Admin\AppData\Local\Temp\task.exe
      "C:\Users\Admin\AppData\Local\Temp\task.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:548
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\task.exe" "task.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1480

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    51a36bce2022f66cdabb97df479bd850

    SHA1

    68397ef3c39c3a45c1e1837bf7da1f1c8fe421f3

    SHA256

    7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c

    SHA512

    ce0a17bf36f042ef5c43015980029787247e1eb1dd2c1e6f07f073a3a65e13e25199b0c5816a55e03c06ec566b499afb3c8f5bc54ef21c353b685328892c513a

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

    Filesize

    23KB

    MD5

    51a36bce2022f66cdabb97df479bd850

    SHA1

    68397ef3c39c3a45c1e1837bf7da1f1c8fe421f3

    SHA256

    7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c

    SHA512

    ce0a17bf36f042ef5c43015980029787247e1eb1dd2c1e6f07f073a3a65e13e25199b0c5816a55e03c06ec566b499afb3c8f5bc54ef21c353b685328892c513a

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

    Filesize

    23KB

    MD5

    51a36bce2022f66cdabb97df479bd850

    SHA1

    68397ef3c39c3a45c1e1837bf7da1f1c8fe421f3

    SHA256

    7916255e1713df00ed5e437a6b363f322059d171dc4dbdb335c759cb47eab75c

    SHA512

    ce0a17bf36f042ef5c43015980029787247e1eb1dd2c1e6f07f073a3a65e13e25199b0c5816a55e03c06ec566b499afb3c8f5bc54ef21c353b685328892c513a

  • memory/548-57-0x0000000000000000-mapping.dmp

  • memory/548-62-0x0000000074720000-0x0000000074CCB000-memory.dmp

    Filesize

    5.7MB

  • memory/548-65-0x0000000074720000-0x0000000074CCB000-memory.dmp

    Filesize

    5.7MB

  • memory/1396-54-0x00000000760E1000-0x00000000760E3000-memory.dmp

    Filesize

    8KB

  • memory/1396-55-0x0000000074720000-0x0000000074CCB000-memory.dmp

    Filesize

    5.7MB

  • memory/1396-61-0x0000000074720000-0x0000000074CCB000-memory.dmp

    Filesize

    5.7MB

  • memory/1480-63-0x0000000000000000-mapping.dmp