Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01-10-2022 07:42

General

  • Target

    58dd74be00f9f4aee71592466446b7664ea57418eda8eb643e1400bf2518a45f.exe

  • Size

    137KB

  • MD5

    adf162028e5b01840010d1a79ae6bdf1

  • SHA1

    9ce0e40ae78fa71ab43f4e8acf2d855b0ea7ebcd

  • SHA256

    58dd74be00f9f4aee71592466446b7664ea57418eda8eb643e1400bf2518a45f

  • SHA512

    30e27bd75a588b03f086a93d5f4d759a386b043c30caeddbb226921bb8ce3392334c9d4e901f6662e6307702ffe7ca5d79724645e80819f64b3a0a9641946fa0

  • SSDEEP

    3072:VYO/ZMTFlxUI5rUdiKSk42oxKaVgDF0pRXqh1SS4i:VYMZMBlxUI6f42oxKV2Bqh

Malware Config

Extracted

Family

redline

Botnet

LUPEFOX

C2

o0l0j0jo.webredirect.org:28532

Attributes
  • auth_value

    90194e50cef153fc9816a29fd46b6637

Extracted

Family

remcos

Botnet

Firefox

C2

elew3le3lanle.freeddns.org:20309

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Firefox

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-Z26APQ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Firefox

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Remcos

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 5 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
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58dd74be00f9f4aee71592466446b7664ea57418eda8eb643e1400bf2518a45f.exe
    "C:\Users\Admin\AppData\Local\Temp\58dd74be00f9f4aee71592466446b7664ea57418eda8eb643e1400bf2518a45f.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Users\Admin\AppData\Local\Temp\Firefox.exe
      "C:\Users\Admin\AppData\Local\Temp\Firefox.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3920
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Firefox\remcos.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:812
          • C:\ProgramData\Firefox\remcos.exe
            C:\ProgramData\Firefox\remcos.exe
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1652
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:192
              • C:\ProgramData\Firefox\remcos.exe
                C:\ProgramData\Firefox\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\yesmyvc"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:3872
              • C:\ProgramData\Firefox\remcos.exe
                C:\ProgramData\Firefox\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\agyeyontdv"
                6⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook accounts
                PID:4020
              • C:\ProgramData\Firefox\remcos.exe
                C:\ProgramData\Firefox\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\lalxzgxnrdrmrm"
                6⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3680

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Firefox\remcos.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\ProgramData\Firefox\remcos.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\ProgramData\Firefox\remcos.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\ProgramData\Firefox\remcos.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\ProgramData\Firefox\remcos.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\Users\Admin\AppData\Local\Temp\Firefox.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\Users\Admin\AppData\Local\Temp\Firefox.exe
      Filesize

      469KB

      MD5

      a0c98858ea96edb2386c86e1786f3419

      SHA1

      461ece495d357885b8ab78341374d830ad88cb76

      SHA256

      269546bd718741529021774e7032cf8da5075e2d18852ee0859c3c7a854f5950

      SHA512

      0d0f7ac9a4450be50e66ca6595870118a28cefe1d4fb4289be6f0e7747a90bfad7e899ae93ae78d8effdbdf156b313e40f18db633cd8c1b763c4ccb7d974febb

    • C:\Users\Admin\AppData\Local\Temp\install.vbs
      Filesize

      514B

      MD5

      a3a9983bd270c323c4980b3c9b4e6e39

      SHA1

      7d72d0460122d13c2c1edb2840e987d72f93b95a

      SHA256

      56eae8770dc7c1981653fa300824c7abb544c8d3cd91fe307c44092a7a547ab8

      SHA512

      c6df00228a588d447a66fed8b4e5bbbe81c94a132d67c92376ac7d94c53321151087e62041edb58eb6d812e178d0d627f38f24850057cc4fd0e541b79aa24c43

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

      4KB

      MD5

      ade77bc657a5e79b695d63d405229395

      SHA1

      d1dbc18a60cde14ffe99f5408039462033d4230f

      SHA256

      9c2586ee052f263a0ec4101cd10710787abd43b941207ed3cccb9b0443073ead

      SHA512

      8e7d1d90f172caa4105c55c3ec42a945e368c3726d53f118508e09553ed50f41972e529a92420490b5c68aa2ee3669e7dbf5db4311d4f1f44092c766f829e408

    • memory/192-403-0x00000000030627A4-mapping.dmp
    • memory/192-466-0x0000000003030000-0x00000000030AF000-memory.dmp
      Filesize

      508KB

    • memory/812-347-0x0000000000000000-mapping.dmp
    • memory/1652-360-0x0000000000000000-mapping.dmp
    • memory/3680-471-0x0000000000422206-mapping.dmp
    • memory/3680-515-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

    • memory/3680-591-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

    • memory/3872-467-0x0000000000400000-0x0000000000478000-memory.dmp
      Filesize

      480KB

    • memory/3872-461-0x0000000000476274-mapping.dmp
    • memory/3872-597-0x0000000000400000-0x0000000000478000-memory.dmp
      Filesize

      480KB

    • memory/3872-609-0x0000000000400000-0x0000000000478000-memory.dmp
      Filesize

      480KB

    • memory/3920-280-0x0000000000000000-mapping.dmp
    • memory/4020-512-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/4020-464-0x0000000000455238-mapping.dmp
    • memory/4020-595-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/4820-161-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-174-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-137-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-138-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-139-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-140-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-141-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-142-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-143-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-144-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-145-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-146-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-147-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-148-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-149-0x0000000000CD0000-0x0000000000CF8000-memory.dmp
      Filesize

      160KB

    • memory/4820-150-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-151-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-152-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-153-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-154-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-155-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-156-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-157-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-158-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-159-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-160-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-135-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-162-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-163-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-164-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-165-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-166-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-167-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-168-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-169-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-170-0x0000000005AA0000-0x00000000060A6000-memory.dmp
      Filesize

      6.0MB

    • memory/4820-171-0x00000000055E0000-0x00000000056EA000-memory.dmp
      Filesize

      1.0MB

    • memory/4820-172-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-173-0x0000000005510000-0x0000000005522000-memory.dmp
      Filesize

      72KB

    • memory/4820-136-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-175-0x0000000005570000-0x00000000055AE000-memory.dmp
      Filesize

      248KB

    • memory/4820-176-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-177-0x00000000056F0000-0x000000000573B000-memory.dmp
      Filesize

      300KB

    • memory/4820-178-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-179-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-180-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-181-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-182-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-183-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-184-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-185-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-187-0x00000000058A0000-0x0000000005906000-memory.dmp
      Filesize

      408KB

    • memory/4820-195-0x0000000006450000-0x00000000064E2000-memory.dmp
      Filesize

      584KB

    • memory/4820-196-0x00000000069F0000-0x0000000006EEE000-memory.dmp
      Filesize

      5.0MB

    • memory/4820-201-0x0000000007110000-0x0000000007186000-memory.dmp
      Filesize

      472KB

    • memory/4820-134-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-133-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-132-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-131-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-130-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-129-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-128-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-127-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-126-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-125-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-124-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-123-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-122-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-121-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-120-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-119-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-118-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-117-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-116-0x0000000077200000-0x000000007738E000-memory.dmp
      Filesize

      1.6MB

    • memory/4820-202-0x0000000007190000-0x00000000071E0000-memory.dmp
      Filesize

      320KB

    • memory/4820-203-0x00000000073B0000-0x0000000007572000-memory.dmp
      Filesize

      1.8MB

    • memory/4820-204-0x0000000008ED0000-0x00000000093FC000-memory.dmp
      Filesize

      5.2MB

    • memory/4972-224-0x0000000000000000-mapping.dmp