Analysis

  • max time kernel
    153s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • submitted
    31-07-2022 09:00

General

  • Target

    c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe

  • Size

    16KB

  • MD5

    6bd58a85b177f63258c7e23abc6857a0

  • SHA1

    4b72403d1fb6cd8b685e6453f8734e8a74b2568b

  • SHA256

    c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d

  • SHA512

    cd3dc83bce9bb634a0dfdbf2c074df1d9e1a12773c412cfab765694f4e7873527675b40a271fa751879baf0ea8eb7bc8a071a8a90ff1290bb96f3eca2b39705a

  • SSDEEP

    384:DWxvd9PWblH19GTXjdh9mnuujYcV6AUwJFZb:DUfeV9AhEfYcV6Dw9b

Malware Config

Extracted

Family

loaderbot

C2

http://user79675.7ci.ru/cmd.php

Signatures

  • LoaderBot

    LoaderBot is a loader written in .NET downloading and executing miners.

  • LoaderBot executable 1 IoCs
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe
    "C:\Users\Admin\AppData\Local\Temp\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /C schtasks /create /tn \System\SecurityServiceUpdate /tr %userprofile%\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1544
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn \System\SecurityServiceUpdate /tr C:\Users\Admin\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f
        3⤵
        • Creates scheduled task(s)
        PID:1520
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5469654B-1B2D-48E0-BB64-1B4A62A5DFAB} S-1-5-21-4084403625-2215941253-1760665084-1000:LDLTPJLN\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Users\Admin\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe
      C:\Users\Admin\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /C schtasks /create /tn \System\SecurityServiceUpdate /tr %userprofile%\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /tn \System\SecurityServiceUpdate /tr C:\Users\Admin\AppData\Roaming\Windows\c9146e423c92744eb2960112b45bdbd59f2cbd2ac99d388ab1cafd78181f028d.exe /st 00:00 /du 9999:59 /sc daily /ri 5 /f
          4⤵
          • Creates scheduled task(s)
          PID:1588

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1356-58-0x0000000000000000-mapping.dmp
  • memory/1412-54-0x0000000000830000-0x000000000083A000-memory.dmp
    Filesize

    40KB

  • memory/1412-56-0x0000000075761000-0x0000000075763000-memory.dmp
    Filesize

    8KB

  • memory/1512-59-0x0000000000000000-mapping.dmp
  • memory/1520-57-0x0000000000000000-mapping.dmp
  • memory/1544-55-0x0000000000000000-mapping.dmp
  • memory/1588-61-0x0000000000000000-mapping.dmp