Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 04:05

General

  • Target

    xIsAJb1izaR6.exe

  • Size

    483KB

  • MD5

    ee688e51710c1934c41569aa9f163a7b

  • SHA1

    7cbff5e6ba0f471116010ee8606686839e457193

  • SHA256

    91e4bb8408db1e54d407d1859cbdde5c9df1a70c755474b5c7542ad661e30d00

  • SHA512

    6f22891889e961f51714f28f5703e5d8b8d4fdfe103d479fdc6e87462000e6696fbcbed6eff2daac8f5bcfe6beb7074f2804f52036c4b17bfc0e308cb356414d

  • SSDEEP

    6144:cXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZsAX4cNi5Gv:cX7tPMK8ctGe4Dzl4h2QnuPs/ZsHcv

Malware Config

Extracted

Family

remcos

Botnet

rs1_release

C2

dave17.bumbleshrimp.com:52182

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-5ABRG3

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe
    "C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3528
    • C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe
      C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe /stext "C:\Users\Admin\AppData\Local\Temp\jdgy"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3356
    • C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe
      C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe /stext "C:\Users\Admin\AppData\Local\Temp\uxmjgte"
      2⤵
      • Accesses Microsoft Outlook accounts
      PID:2984
    • C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe
      C:\Users\Admin\AppData\Local\Temp\xIsAJb1izaR6.exe /stext "C:\Users\Admin\AppData\Local\Temp\ezzbhmpbuj"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\jdgy

    Filesize

    4KB

    MD5

    788d7419b32411807cc6753cbbccecbe

    SHA1

    761b99a1e5bc168f525181d78cff3f6ed82daa14

    SHA256

    76150e857b36f1f070422d2ad4df17f87454466348e4bfc158b028977378140b

    SHA512

    3003f104b0b07870015ff4e9e0d254c2e537d4c68ef664a772d7018827b0ccbeb5481a2ce587b88e6ab1d71d6ce523a620c11c00c676857d5fd5ab949fa617b4

  • memory/2984-15-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2984-9-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2984-10-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2984-3-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2984-14-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3356-12-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3356-1-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3356-11-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3356-16-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3356-26-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3528-34-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3528-33-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3528-32-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3528-29-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3528-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3720-17-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3720-7-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3720-23-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3720-5-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3720-19-0x0000000000430000-0x00000000004F9000-memory.dmp

    Filesize

    804KB