Overview

overview

10

Static

static

10

35ad22114a...b5.exe

windows7_x64

10

35ad22114a...b5.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:44

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General

  • Target

    35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5.exe

  • Size

    103KB

  • MD5

    f9c052d2ef0481d097e379ab0ebdcef6

  • SHA1

    bb34575bd6f49e5a18c32527cf799d5c0cdb2e74

  • SHA256

    35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5

  • SHA512

    f1cf9525b47d138ba736649482d71b9c9d5adc0fb73aeead3e5c386f644940a178c4096fc25bb60495bf4a1fe73b573334ea95289a6ddd16d8f9f54822cb6cec

Score
10/10
njratlevkrasovevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Levkrasov

C2

185.82.217.154:9591

Mutex

7152dc47d9a6ebd70777913857a0545c

Attributes
  • reg_key

    7152dc47d9a6ebd70777913857a0545c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • 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
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5.exe
    "C:\Users\Admin\AppData\Local\Temp\35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Roaming\WindowsServices.exe
      "C:\Users\Admin\AppData\Roaming\WindowsServices.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\WindowsServices.exe" "WindowsServices.exe" ENABLE
        3⤵
          PID:4940

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\WindowsServices.exe
      Filesize

      103KB

      MD5

      f9c052d2ef0481d097e379ab0ebdcef6

      SHA1

      bb34575bd6f49e5a18c32527cf799d5c0cdb2e74

      SHA256

      35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5

      SHA512

      f1cf9525b47d138ba736649482d71b9c9d5adc0fb73aeead3e5c386f644940a178c4096fc25bb60495bf4a1fe73b573334ea95289a6ddd16d8f9f54822cb6cec

      Download Submit
    • C:\Users\Admin\AppData\Roaming\WindowsServices.exe
      Filesize

      103KB

      MD5

      f9c052d2ef0481d097e379ab0ebdcef6

      SHA1

      bb34575bd6f49e5a18c32527cf799d5c0cdb2e74

      SHA256

      35ad22114a87e95d0a8a6ad3ea3bf12e6c48543d4d4d6b6c0a8ba5aa068cd7b5

      SHA512

      f1cf9525b47d138ba736649482d71b9c9d5adc0fb73aeead3e5c386f644940a178c4096fc25bb60495bf4a1fe73b573334ea95289a6ddd16d8f9f54822cb6cec

      Download Submit
    • memory/1848-130-0x0000000074FE0000-0x0000000075591000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/2012-131-0x0000000000000000-mapping.dmp
      Download
    • memory/2012-134-0x0000000074FE0000-0x0000000075591000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4940-135-0x0000000000000000-mapping.dmp
      Download