Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-01-2025 13:55

General

  • Target

    inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe

  • Size

    537KB

  • MD5

    25eec63edf7c0eb8628a89712b5cb363

  • SHA1

    4e8d586a950492c30147b7d56bcfad49cd577966

  • SHA256

    e075807417590255de4d395fa3dfbc336e88c96bbab8afca1d5e5d5abbac0237

  • SHA512

    086feb119e2a02f2fd7afc45c422f9b472f049eb2e79f83769f25254d88a84086275d2cff1e891d360ea57978292cd0caf958e4000cd659ac532165e1f881dfb

  • SSDEEP

    6144:UnPdudwDCVOCg2G4A+uxXCpzna3MSzy99s5sbro5kd+B4hJ1QQsSGuhkrpzOUlec:UnPdMg2H8SpzaThHy7mzOUlvnVMs3e+

Malware Config

Extracted

Family

remcos

Botnet

Manifest

C2

linktreewealth.zapto.org:3980

linktreewealth.zapto.org:3981

linktreewealthy.zapto.org:3980

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-0B1XIG

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

latentbot

C2

linktreewealth.zapto.org

Signatures

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Latentbot family
  • Remcos

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

  • Remcos family
  • Detected Nirsoft tools 7 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe
        C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\bskilypnsenhzutwcbjwazmegogxna"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2136
      • C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe
        C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\luqbmrahgmfmbapatmwxdmyvpcxgglywt"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1840
      • C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe
        C:\Users\Admin\AppData\Local\Temp\inward_payment_confirmation_reference_Z1766053541_notifications.bat.exe /stext "C:\Users\Admin\AppData\Local\Temp\novln"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    f253516adf2b478dad786b6f9b361cc0

    SHA1

    5d80db4b58175cc19761f207b11d4723d62be425

    SHA256

    322bc34d52b6c6076d9f92e4c7881e25f83bafe30648f4f5e327c53e2eba8029

    SHA512

    c410c8294fc71ee59b4ca6255b12bde93de2533d9ac93213616d2267f1f25b4d0653baf36f71f5f53c26fab03d01bf109a0b872e6d50fe53e0646e973e53d6e4

  • C:\Users\Admin\AppData\Local\Temp\Cab2F2D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar2F5F.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • \Users\Admin\AppData\Local\Temp\nsd9677.tmp\System.dll

    Filesize

    12KB

    MD5

    4add245d4ba34b04f213409bfe504c07

    SHA1

    ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

    SHA256

    9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

    SHA512

    1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

  • memory/1152-85-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1152-89-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1152-84-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1152-88-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1152-86-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1292-74-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/1292-16-0x0000000076E80000-0x0000000077029000-memory.dmp

    Filesize

    1.7MB

  • memory/1292-106-0x0000000036660000-0x0000000036679000-memory.dmp

    Filesize

    100KB

  • memory/1292-20-0x0000000076E80000-0x0000000077029000-memory.dmp

    Filesize

    1.7MB

  • memory/1292-15-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/1292-18-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/1292-102-0x0000000036660000-0x0000000036679000-memory.dmp

    Filesize

    100KB

  • memory/1292-105-0x0000000036660000-0x0000000036679000-memory.dmp

    Filesize

    100KB

  • memory/1840-83-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1840-92-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1840-107-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1840-87-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1840-82-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2136-93-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2136-98-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2136-91-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2136-81-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3020-14-0x0000000076E80000-0x0000000077029000-memory.dmp

    Filesize

    1.7MB

  • memory/3020-13-0x0000000076E81000-0x0000000076F82000-memory.dmp

    Filesize

    1.0MB