Analysis

  • max time kernel
    151s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04-06-2022 19:16

General

  • Target

    9C78846071126D7F29A8B82B699903031D7D2CD837DF9.exe

  • Size

    1.5MB

  • MD5

    58a250aeb22f0040185210402d4243b3

  • SHA1

    cb74b3dba0e3ef8073f03810a0232da641b8a587

  • SHA256

    9c78846071126d7f29a8b82b699903031d7d2cd837df91584fd1ee7eb7b8c93b

  • SHA512

    72aea6fd61661826dad7de76d7e998de0f91cf9992282cb16dcf11ca8a32c64b249839f9680b6a0a95b848c2f57fb4b1d5d80f300007656edd8ad95c7afe4980

Malware Config

Extracted

Family

redline

Botnet

AwsR

C2

siyatermi.duckdns.org:17044

Extracted

Family

quasar

Version

2.1.0.0

Botnet

V/R/B

C2

siyatermi.duckdns.org:1518

Mutex

VNM_MUTEX_mJ6pCWZMe3OMOha5bj

Attributes
  • encryption_key

    g1Bi32PXFGwyBI9DJGTD

  • install_name

    Start Process.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Browser Module

  • subdirectory

    Sys Resources

Signatures

  • Contains code to disable Windows Defender 6 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Quasar Payload 6 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • RedLine

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

  • RedLine Payload 3 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • suricata: ET MALWARE Common RAT Connectivity Check Observed

    suricata: ET MALWARE Common RAT Connectivity Check Observed

  • suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3

    suricata: ET MALWARE W32/Quasar 1.3/Venom RAT Connectivity Check 3

  • Executes dropped EXE 5 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.

  • Windows security modification 2 TTPs 2 IoCs
  • 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 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9C78846071126D7F29A8B82B699903031D7D2CD837DF9.exe
    "C:\Users\Admin\AppData\Local\Temp\9C78846071126D7F29A8B82B699903031D7D2CD837DF9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Users\Admin\AppData\Roaming\Software Check.exe
      "C:\Users\Admin\AppData\Roaming\Software Check.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1808
    • C:\Users\Admin\AppData\Local\Temp\Steam Accounts Checker v0.4 By X-SLAYER.exe
      "C:\Users\Admin\AppData\Local\Temp\Steam Accounts Checker v0.4 By X-SLAYER.exe"
      2⤵
      • Executes dropped EXE
      PID:1572
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 1572 -s 864
        3⤵
        • Program crash
        PID:4616
    • C:\Users\Admin\AppData\Roaming\Start Process.exe
      "C:\Users\Admin\AppData\Roaming\Start Process.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Executes dropped EXE
      • Checks computer location settings
      • Windows security modification
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2808
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Browser Module" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Start Process.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:5116
      • C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe
        "C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4992
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "Browser Module" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe" /rl HIGHEST /f
          4⤵
          • Creates scheduled task(s)
          PID:1840
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3556
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3852
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
            PID:4376
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NbJ09X58vla2.bat" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1196
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            4⤵
              PID:1920
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              4⤵
              • Runs ping.exe
              PID:1056
            • C:\Users\Admin\AppData\Roaming\Start Process.exe
              "C:\Users\Admin\AppData\Roaming\Start Process.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2628
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -pss -s 408 -p 1572 -ip 1572
        1⤵
          PID:4648

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Start Process.exe.log

          Filesize

          1KB

          MD5

          8013ca45a4b68a281377f2c7b517ac8a

          SHA1

          aff79b7c8f408e5ae6f00cf9d83e2fd95d9affc3

          SHA256

          234381ea204c431d0936c4141a38381629938e4f5d40dd0ef01de6a282abbae7

          SHA512

          428305df713c12d2165303a9b0433c83a0e3f3088a9551deb6403e9351814c38c2377e7c22ede57bcd23ca764e02fce431c52aba6bf4b998b89a518129fda2d6

        • C:\Users\Admin\AppData\Local\Temp\NbJ09X58vla2.bat

          Filesize

          207B

          MD5

          fe44e81c40bfade1920849e42f5df009

          SHA1

          638e56c03e7f0a9e00e2a4856c128b653eb850da

          SHA256

          d68bd6d90e6435aa1cc3ac0ba6b58c906ac5fbc3c4fb515a10659b84cefae7c4

          SHA512

          e85fbe4e5f84771a2ef4be30df21ee59d80042099be8a833d0c54d22991c47d723f5405942f52a5b74b809b4ab4531dd1bd26bc40d8e97eec03a1ae6e4b5bbdd

        • C:\Users\Admin\AppData\Local\Temp\Steam Accounts Checker v0.4 By X-SLAYER.exe

          Filesize

          899KB

          MD5

          5b74993c433cb811c591a1b2a8155b31

          SHA1

          b06deafe52ed08047025a5d8aa375545bf7e4078

          SHA256

          cef89a16a209e852dc11074589a8680d6cd59812cad1c3e2e42cba75e5109d21

          SHA512

          5ffc5c64a85498e7dd3866131a37fdff816ae1fc0806b666799fef70d6aa16da8bd82a95045a7b1d514de49a01d580813324af971e1379aa6d2946589a9d5ea4

        • C:\Users\Admin\AppData\Local\Temp\Steam Accounts Checker v0.4 By X-SLAYER.exe

          Filesize

          899KB

          MD5

          5b74993c433cb811c591a1b2a8155b31

          SHA1

          b06deafe52ed08047025a5d8aa375545bf7e4078

          SHA256

          cef89a16a209e852dc11074589a8680d6cd59812cad1c3e2e42cba75e5109d21

          SHA512

          5ffc5c64a85498e7dd3866131a37fdff816ae1fc0806b666799fef70d6aa16da8bd82a95045a7b1d514de49a01d580813324af971e1379aa6d2946589a9d5ea4

        • C:\Users\Admin\AppData\Roaming\Software Check.exe

          Filesize

          95KB

          MD5

          27c2436f6a1c111bef78597d37751138

          SHA1

          f1dabacffc82bbfc7d8db578f0a5653d7fe84bca

          SHA256

          bcac81c69094ea47c3a00cae028ac4c64dd6cbd4fe85e11363e3e35b48c04842

          SHA512

          97e717b9ad5b063e4ff1209684b27d033c5a4a8d9679e3d42d7308fbac1c885a1d3c85d3fed70b7a9adc82203d0e943777d7819456599276c61549186e319636

        • C:\Users\Admin\AppData\Roaming\Software Check.exe

          Filesize

          95KB

          MD5

          27c2436f6a1c111bef78597d37751138

          SHA1

          f1dabacffc82bbfc7d8db578f0a5653d7fe84bca

          SHA256

          bcac81c69094ea47c3a00cae028ac4c64dd6cbd4fe85e11363e3e35b48c04842

          SHA512

          97e717b9ad5b063e4ff1209684b27d033c5a4a8d9679e3d42d7308fbac1c885a1d3c85d3fed70b7a9adc82203d0e943777d7819456599276c61549186e319636

        • C:\Users\Admin\AppData\Roaming\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • C:\Users\Admin\AppData\Roaming\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • C:\Users\Admin\AppData\Roaming\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • C:\Users\Admin\AppData\Roaming\Sys Resources\Start Process.exe

          Filesize

          535KB

          MD5

          4d97786ab8047ad6c08532ed7a017573

          SHA1

          a64d07233d813f9a085722295dca62ca726e291a

          SHA256

          5a72c2a12e0e42313c5d01277d3b26f52810a9753e31883f5f3e7a73a0021870

          SHA512

          9224f6c0af0bb3aa6804e09b36617d2ecf762caf81ec0f2627553788f7045d09878b41ddb63a1d0779973cba52d2f1d59f69bc6c826ad8bb0d807444abab87d2

        • memory/1056-190-0x0000000000000000-mapping.dmp

        • memory/1196-187-0x0000000000000000-mapping.dmp

        • memory/1572-135-0x0000000000000000-mapping.dmp

        • memory/1572-146-0x00007FF8A2760000-0x00007FF8A3221000-memory.dmp

          Filesize

          10.8MB

        • memory/1572-141-0x000001E9A4CC0000-0x000001E9A4DAA000-memory.dmp

          Filesize

          936KB

        • memory/1572-158-0x000001E9A4CC0000-0x000001E9A4DAA000-memory.dmp

          Filesize

          936KB

        • memory/1572-157-0x00007FF8A2760000-0x00007FF8A3221000-memory.dmp

          Filesize

          10.8MB

        • memory/1572-139-0x000001E9A4CC0000-0x000001E9A4DAA000-memory.dmp

          Filesize

          936KB

        • memory/1580-130-0x00000000752D0000-0x0000000075881000-memory.dmp

          Filesize

          5.7MB

        • memory/1580-149-0x0000000073840000-0x0000000073FE8000-memory.dmp

          Filesize

          7.7MB

        • memory/1580-148-0x00000000740D0000-0x0000000074BD0000-memory.dmp

          Filesize

          11.0MB

        • memory/1580-144-0x00000000752D0000-0x0000000075881000-memory.dmp

          Filesize

          5.7MB

        • memory/1580-132-0x0000000073840000-0x0000000073FE8000-memory.dmp

          Filesize

          7.7MB

        • memory/1580-131-0x00000000740D0000-0x0000000074BD0000-memory.dmp

          Filesize

          11.0MB

        • memory/1808-162-0x00000000073E0000-0x00000000073FE000-memory.dmp

          Filesize

          120KB

        • memory/1808-145-0x0000000000680000-0x000000000069E000-memory.dmp

          Filesize

          120KB

        • memory/1808-155-0x00000000051D0000-0x00000000052DA000-memory.dmp

          Filesize

          1.0MB

        • memory/1808-154-0x0000000004F20000-0x0000000004F5C000-memory.dmp

          Filesize

          240KB

        • memory/1808-159-0x00000000064B0000-0x0000000006672000-memory.dmp

          Filesize

          1.8MB

        • memory/1808-160-0x0000000006BB0000-0x00000000070DC000-memory.dmp

          Filesize

          5.2MB

        • memory/1808-161-0x0000000006AE0000-0x0000000006B56000-memory.dmp

          Filesize

          472KB

        • memory/1808-151-0x0000000005670000-0x0000000005C88000-memory.dmp

          Filesize

          6.1MB

        • memory/1808-133-0x0000000000000000-mapping.dmp

        • memory/1808-152-0x0000000004EC0000-0x0000000004ED2000-memory.dmp

          Filesize

          72KB

        • memory/1840-173-0x0000000000000000-mapping.dmp

        • memory/1920-189-0x0000000000000000-mapping.dmp

        • memory/2628-191-0x0000000000000000-mapping.dmp

        • memory/2808-150-0x0000000005A00000-0x0000000005FA4000-memory.dmp

          Filesize

          5.6MB

        • memory/2808-140-0x0000000000000000-mapping.dmp

        • memory/2808-147-0x0000000000A10000-0x0000000000A9C000-memory.dmp

          Filesize

          560KB

        • memory/2808-153-0x0000000005350000-0x00000000053E2000-memory.dmp

          Filesize

          584KB

        • memory/2808-156-0x0000000005550000-0x00000000055B6000-memory.dmp

          Filesize

          408KB

        • memory/3556-183-0x00000000071A0000-0x00000000071BA000-memory.dmp

          Filesize

          104KB

        • memory/3556-184-0x0000000007180000-0x0000000007188000-memory.dmp

          Filesize

          32KB

        • memory/3556-175-0x0000000006D10000-0x0000000006D42000-memory.dmp

          Filesize

          200KB

        • memory/3556-176-0x0000000070580000-0x00000000705CC000-memory.dmp

          Filesize

          304KB

        • memory/3556-177-0x0000000006110000-0x000000000612E000-memory.dmp

          Filesize

          120KB

        • memory/3556-178-0x00000000074A0000-0x0000000007B1A000-memory.dmp

          Filesize

          6.5MB

        • memory/3556-179-0x0000000006E60000-0x0000000006E7A000-memory.dmp

          Filesize

          104KB

        • memory/3556-180-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

          Filesize

          40KB

        • memory/3556-181-0x00000000070E0000-0x0000000007176000-memory.dmp

          Filesize

          600KB

        • memory/3556-182-0x0000000007090000-0x000000000709E000-memory.dmp

          Filesize

          56KB

        • memory/3556-172-0x0000000005B50000-0x0000000005B6E000-memory.dmp

          Filesize

          120KB

        • memory/3556-167-0x0000000000000000-mapping.dmp

        • memory/3556-168-0x0000000002240000-0x0000000002276000-memory.dmp

          Filesize

          216KB

        • memory/3556-169-0x0000000004C40000-0x0000000005268000-memory.dmp

          Filesize

          6.2MB

        • memory/3556-171-0x00000000054A0000-0x0000000005506000-memory.dmp

          Filesize

          408KB

        • memory/3556-170-0x00000000053D0000-0x00000000053F2000-memory.dmp

          Filesize

          136KB

        • memory/3852-185-0x0000000000000000-mapping.dmp

        • memory/4376-186-0x0000000000000000-mapping.dmp

        • memory/4992-174-0x0000000006E90000-0x0000000006E9A000-memory.dmp

          Filesize

          40KB

        • memory/4992-164-0x0000000000000000-mapping.dmp

        • memory/5116-163-0x0000000000000000-mapping.dmp