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Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2024, 00:48

General

  • Target

    709d01e2059255e29bf003d6b94cd2514b2fad1c7760d06cc3c1d52ffb0fb512.exe

  • Size

    903KB

  • MD5

    bd5494546a6eeb7543f728c32b23eca6

  • SHA1

    a7269d4e1357a79aac11f8b670122b943cf2c137

  • SHA256

    709d01e2059255e29bf003d6b94cd2514b2fad1c7760d06cc3c1d52ffb0fb512

  • SHA512

    f3b691414f913c83011ae165287bba1211195489724dd69448a8f53d70f30510a34a377278ad1d373dcba317bd8516afd97911a8d3f09f3f669da4cad5ba0f05

  • SSDEEP

    3072:HEA93TEA93TEA93TEA93TEA93TEA93TEA93TEA93TEA93TEA93TEA93TEA93TEAZ:HRRRRRRRRRRRRRRRRRRRRJ

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

com-elephant.gl.at.ply.gg:63355

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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\709d01e2059255e29bf003d6b94cd2514b2fad1c7760d06cc3c1d52ffb0fb512.exe
    "C:\Users\Admin\AppData\Local\Temp\709d01e2059255e29bf003d6b94cd2514b2fad1c7760d06cc3c1d52ffb0fb512.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
      "C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3512
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3008
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3084
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5056

Network

MITRE ATT&CK Enterprise v15

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\Dllhost.exe

    Filesize

    903KB

    MD5

    bd5494546a6eeb7543f728c32b23eca6

    SHA1

    a7269d4e1357a79aac11f8b670122b943cf2c137

    SHA256

    709d01e2059255e29bf003d6b94cd2514b2fad1c7760d06cc3c1d52ffb0fb512

    SHA512

    f3b691414f913c83011ae165287bba1211195489724dd69448a8f53d70f30510a34a377278ad1d373dcba317bd8516afd97911a8d3f09f3f669da4cad5ba0f05

  • memory/3084-28-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3084-26-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3084-25-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3512-22-0x00000000058A0000-0x00000000058AA000-memory.dmp

    Filesize

    40KB

  • memory/3512-16-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3512-17-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3512-20-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3512-21-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-5-0x0000000005AB0000-0x0000000005B42000-memory.dmp

    Filesize

    584KB

  • memory/4024-15-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

    Filesize

    4KB

  • memory/4024-4-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-3-0x0000000005F80000-0x0000000006524000-memory.dmp

    Filesize

    5.6MB

  • memory/4024-2-0x0000000005730000-0x00000000057CC000-memory.dmp

    Filesize

    624KB

  • memory/4024-1-0x0000000000CA0000-0x0000000000CB2000-memory.dmp

    Filesize

    72KB