Analysis

  • max time kernel
    152s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 09:08

General

  • Target

    da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29.exe

  • Size

    23KB

  • MD5

    6ccc425c631acf8fb40e8b3ff5a7f000

  • SHA1

    7499bd4ea8becca5bc3f0b9fabc96d7270d46431

  • SHA256

    da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29

  • SHA512

    6cd2136f2d3515025fc04b6a683038ac5fd240807f2cde73fbc811b3ac47757db6a2981759cacdc6b9f9471e18622fd5752c7bef73fc5ae13d154e08b682b49b

  • SSDEEP

    384:Cc6ze6e1PAhJVzC3tC1im/Bscx46wgZ0rap9H9mRvR6JZlbw8hqIusZzZLO:ie9EJLN/aRpcnuh

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

dddddddd111.zapto.org:8701

Mutex

1ce270c78d3c425224ce69fe9529371c

Attributes
  • reg_key

    1ce270c78d3c425224ce69fe9529371c

  • 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 use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29.exe
    "C:\Users\Admin\AppData\Local\Temp\da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1732

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

    23KB

    MD5

    6ccc425c631acf8fb40e8b3ff5a7f000

    SHA1

    7499bd4ea8becca5bc3f0b9fabc96d7270d46431

    SHA256

    da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29

    SHA512

    6cd2136f2d3515025fc04b6a683038ac5fd240807f2cde73fbc811b3ac47757db6a2981759cacdc6b9f9471e18622fd5752c7bef73fc5ae13d154e08b682b49b

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

    23KB

    MD5

    6ccc425c631acf8fb40e8b3ff5a7f000

    SHA1

    7499bd4ea8becca5bc3f0b9fabc96d7270d46431

    SHA256

    da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29

    SHA512

    6cd2136f2d3515025fc04b6a683038ac5fd240807f2cde73fbc811b3ac47757db6a2981759cacdc6b9f9471e18622fd5752c7bef73fc5ae13d154e08b682b49b

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

    23KB

    MD5

    6ccc425c631acf8fb40e8b3ff5a7f000

    SHA1

    7499bd4ea8becca5bc3f0b9fabc96d7270d46431

    SHA256

    da087a57703a90ca39321c52fbbb3971a6f5e045dc183af03397e9fc58c8bc29

    SHA512

    6cd2136f2d3515025fc04b6a683038ac5fd240807f2cde73fbc811b3ac47757db6a2981759cacdc6b9f9471e18622fd5752c7bef73fc5ae13d154e08b682b49b

  • memory/940-57-0x0000000000000000-mapping.dmp
  • memory/940-62-0x0000000074760000-0x0000000074D0B000-memory.dmp
    Filesize

    5.7MB

  • memory/940-65-0x0000000074760000-0x0000000074D0B000-memory.dmp
    Filesize

    5.7MB

  • memory/1060-54-0x0000000075021000-0x0000000075023000-memory.dmp
    Filesize

    8KB

  • memory/1060-55-0x0000000074760000-0x0000000074D0B000-memory.dmp
    Filesize

    5.7MB

  • memory/1060-61-0x0000000074760000-0x0000000074D0B000-memory.dmp
    Filesize

    5.7MB

  • memory/1732-63-0x0000000000000000-mapping.dmp