Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-04-2024 01:11

General

  • Target

    2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe

  • Size

    888KB

  • MD5

    215dc8f3f75f1d67d9b6fcec09cb4d00

  • SHA1

    b78ba4e1350b1173b1a2457209993f439fa7e199

  • SHA256

    2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada

  • SHA512

    2a094dd055eedbe761e7da1b7eb44e1a4da04eb79a44bbb7b003a6bc31dadd90deb9cee2e101e55dfba72a700681557cc032547e8bea40f6c0bec2fd418e2ede

  • SSDEEP

    24576:R6SNOGucnCSGYVWX54fKQ7ov6pASCDvHKfpket/0Ms20:kyOPE4WoTQa6pA97HqeeC

Malware Config

Extracted

Family

remcos

Botnet

BUDDY

C2

192.210.201.57:52499

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-LMLI87

  • 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.

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 24 IoCs
  • Detects executables built or packed with MPress PE compressor 17 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe
    "C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2940
    • C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe
      "C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe
        C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe /stext "C:\Users\Admin\AppData\Local\Temp\gzzwwrqkucbfjzdsjkhcosygodpbijdgsl"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4172
      • C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe
        C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe /stext "C:\Users\Admin\AppData\Local\Temp\qtehwk"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:4868
      • C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe
        C:\Users\Admin\AppData\Local\Temp\2e368631139e75aa6cce30aef3ccdfe59dc2131a7f5166fa5b0e36c969eb5ada.exe /stext "C:\Users\Admin\AppData\Local\Temp\bvjzxcmgw"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3988

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat
    Filesize

    144B

    MD5

    06551e463a459046524ba0efd182d165

    SHA1

    77cc24b46e4754ceb868baeb693fa4c61ee05116

    SHA256

    40a067d50099fedf4a908a6920b9a1b6723e63e3b4dc29814c07deb08aa248dc

    SHA512

    0dd6bd16a88b6ac293095e03c099f39186685da0fdfe01a343c833bad552a889c10eaf4806467bb9721a2213e5165387c95b09677921ef8d2dc0179cc5db7e01

  • C:\Users\Admin\AppData\Local\Temp\gzzwwrqkucbfjzdsjkhcosygodpbijdgsl
    Filesize

    4KB

    MD5

    63a3d218b0d233efc9806729feba705a

    SHA1

    3cda6c59e0b8115d8538c8ff0d94a49294d516ac

    SHA256

    66ceb453b5931baa8d942d514cc1dcc41a24ab59313c0621daa9920bd0566bfd

    SHA512

    d0cfb106b57a4e90523c194d073a131bc65461d8e792b0be51aef89aa413dded53c2aba723fc677f68b1211411a0e105b5771cafa045d3e11d54db578577b683

  • memory/2308-53-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2308-74-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-91-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-90-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-82-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-75-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-67-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-66-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-62-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-11-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-13-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-14-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-16-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-18-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-19-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-20-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-21-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-22-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-23-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-24-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-26-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-58-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-57-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-56-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2308-54-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2308-52-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2308-49-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/2308-83-0x0000000000400000-0x0000000000482000-memory.dmp
    Filesize

    520KB

  • memory/2940-8-0x0000000004F00000-0x0000000004F0C000-memory.dmp
    Filesize

    48KB

  • memory/2940-1-0x0000000074F20000-0x00000000756D0000-memory.dmp
    Filesize

    7.7MB

  • memory/2940-55-0x0000000074F20000-0x00000000756D0000-memory.dmp
    Filesize

    7.7MB

  • memory/2940-0-0x0000000000200000-0x00000000002E4000-memory.dmp
    Filesize

    912KB

  • memory/2940-10-0x0000000008730000-0x00000000087CC000-memory.dmp
    Filesize

    624KB

  • memory/2940-5-0x0000000004BA0000-0x0000000004BAA000-memory.dmp
    Filesize

    40KB

  • memory/2940-2-0x00000000051C0000-0x0000000005764000-memory.dmp
    Filesize

    5.6MB

  • memory/2940-3-0x0000000004C10000-0x0000000004CA2000-memory.dmp
    Filesize

    584KB

  • memory/2940-6-0x0000000004DF0000-0x0000000004E04000-memory.dmp
    Filesize

    80KB

  • memory/2940-9-0x0000000006110000-0x00000000061D0000-memory.dmp
    Filesize

    768KB

  • memory/2940-7-0x0000000004E70000-0x0000000004E7A000-memory.dmp
    Filesize

    40KB

  • memory/2940-4-0x0000000004E80000-0x0000000004E90000-memory.dmp
    Filesize

    64KB

  • memory/3988-36-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/3988-45-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/3988-42-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/3988-43-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/3988-44-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/4172-27-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/4172-34-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/4172-31-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/4172-47-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/4868-32-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/4868-41-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/4868-29-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB

  • memory/4868-35-0x0000000000400000-0x0000000000462000-memory.dmp
    Filesize

    392KB