Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2022 11:46

General

  • Target

    968C669247FA766C85B612DB143F89228E4EE94329CF6.exe

  • Size

    43KB

  • MD5

    dee17a4707e3c4a27b66cba03ae27f09

  • SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

  • SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

  • SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

  • SSDEEP

    384:/8ZyVhkyCEFmVoybRxMbAW4EpEzMghwzEIij+ZsNO3PlpJKkkjh/TzF7pWno/grq:/6AhkyVAVlbT6vCQgQuXQ/o1/+L

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

0.tcp.eu.ngrok.io:14880

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\968C669247FA766C85B612DB143F89228E4EE94329CF6.exe
    "C:\Users\Admin\AppData\Local\Temp\968C669247FA766C85B612DB143F89228E4EE94329CF6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:384
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:204
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:956
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:644

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    507B

    MD5

    25d1b50e7c0d451f3d850eb54d27ca05

    SHA1

    a238807715c70a335f54e80d4855644b21a9e870

    SHA256

    650faa13e983c9046c9030f63a5fa1c33900432ec7cb3762e015da2e7c5b34a5

    SHA512

    4223a26b2fabefdf1c01443ccc7bd887464d27f02694379895a040c66db472d541218d501f1c01e1bd31012d079a31baf24e20882c32cf652a09a74e3bf385f5

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

    Filesize

    43KB

    MD5

    dee17a4707e3c4a27b66cba03ae27f09

    SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

    SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

    SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

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

    Filesize

    43KB

    MD5

    dee17a4707e3c4a27b66cba03ae27f09

    SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

    SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

    SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

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

    Filesize

    43KB

    MD5

    dee17a4707e3c4a27b66cba03ae27f09

    SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

    SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

    SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

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

    Filesize

    43KB

    MD5

    dee17a4707e3c4a27b66cba03ae27f09

    SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

    SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

    SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

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

    Filesize

    43KB

    MD5

    dee17a4707e3c4a27b66cba03ae27f09

    SHA1

    e6e592ddb3ea17084191d69ea14576a3f6a8a7e8

    SHA256

    968c669247fa766c85b612db143f89228e4ee94329cf6fe62a6b78bac1b4b5c8

    SHA512

    ec41e9c5d07ec702f87b7c06eceab46caba7b667b4b43ae2a9ad41f9d8f79630c7e87ad8e06b8f0925261532cdbb1f5f21a3c3bcc5a3cc744892916108a0cbf9

  • memory/204-139-0x0000000000000000-mapping.dmp

  • memory/384-141-0x0000000005EF0000-0x0000000005F56000-memory.dmp

    Filesize

    408KB

  • memory/384-140-0x0000000005CC0000-0x0000000005CCA000-memory.dmp

    Filesize

    40KB

  • memory/384-136-0x0000000000000000-mapping.dmp

  • memory/532-132-0x00000000001D0000-0x00000000001E2000-memory.dmp

    Filesize

    72KB

  • memory/532-135-0x0000000004F70000-0x0000000005002000-memory.dmp

    Filesize

    584KB

  • memory/532-134-0x0000000005480000-0x0000000005A24000-memory.dmp

    Filesize

    5.6MB

  • memory/532-133-0x0000000004B40000-0x0000000004BDC000-memory.dmp

    Filesize

    624KB