Analysis

  • max time kernel
    91s
  • max time network
    152s
  • 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

  • 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 1 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:4772
    • 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:4032
    • 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:2736
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2736 -s 844
        3⤵
        • Program crash
        PID:1492
    • 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:3100
      • 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:4808
      • 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:368
        • 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:1436
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3800
      • 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:328
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
            PID:3596
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\vwKxRQUQbGaa.bat" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4864
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            4⤵
              PID:4364
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              4⤵
              • Runs ping.exe
              PID:4188
            • 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:4156
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -pss -s 412 -p 2736 -ip 2736
        1⤵
          PID:4500

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          1KB

          MD5

          10eab9c2684febb5327b6976f2047587

          SHA1

          a12ed54146a7f5c4c580416aecb899549712449e

          SHA256

          f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

          SHA512

          7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

        • 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\Local\Temp\vwKxRQUQbGaa.bat

          Filesize

          207B

          MD5

          32de1fc16358473a464085f8e19401e5

          SHA1

          48906b1b05dd9ff8f7c8c8b2433499261e376814

          SHA256

          a8d25fe117dac2c4226b5b053b6f910230cab3b1c0f884ebb4950c1c033f547c

          SHA512

          4cbbc52c615ec5ed90c8ce7e1e494d25165c1eb54bb88a76f8643a48479adbd576a768d5d2ff01e84fd3769d67bd7eae511c42ce0a5b994ebfd755c338459140

        • 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/328-183-0x0000000000000000-mapping.dmp

        • memory/368-170-0x0000000006690000-0x000000000669A000-memory.dmp

          Filesize

          40KB

        • memory/368-158-0x0000000000000000-mapping.dmp

        • memory/1436-169-0x0000000000000000-mapping.dmp

        • memory/2736-134-0x0000000000000000-mapping.dmp

        • memory/2736-154-0x00007FF824590000-0x00007FF825051000-memory.dmp

          Filesize

          10.8MB

        • memory/2736-147-0x00007FF824590000-0x00007FF825051000-memory.dmp

          Filesize

          10.8MB

        • memory/2736-141-0x0000012FF71C0000-0x0000012FF72AA000-memory.dmp

          Filesize

          936KB

        • memory/2736-155-0x0000012FF71C0000-0x0000012FF72AA000-memory.dmp

          Filesize

          936KB

        • memory/3100-144-0x0000000000960000-0x00000000009EC000-memory.dmp

          Filesize

          560KB

        • memory/3100-156-0x0000000005370000-0x00000000053D6000-memory.dmp

          Filesize

          408KB

        • memory/3100-152-0x00000000052D0000-0x0000000005362000-memory.dmp

          Filesize

          584KB

        • memory/3100-137-0x0000000000000000-mapping.dmp

        • memory/3100-150-0x00000000059D0000-0x0000000005F74000-memory.dmp

          Filesize

          5.6MB

        • memory/3596-184-0x0000000000000000-mapping.dmp

        • memory/3800-171-0x0000000006A20000-0x0000000006A52000-memory.dmp

          Filesize

          200KB

        • memory/3800-173-0x0000000006A00000-0x0000000006A1E000-memory.dmp

          Filesize

          120KB

        • memory/3800-182-0x0000000007A90000-0x0000000007A98000-memory.dmp

          Filesize

          32KB

        • memory/3800-181-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

          Filesize

          104KB

        • memory/3800-180-0x00000000079A0000-0x00000000079AE000-memory.dmp

          Filesize

          56KB

        • memory/3800-161-0x0000000000000000-mapping.dmp

        • memory/3800-162-0x0000000002B20000-0x0000000002B56000-memory.dmp

          Filesize

          216KB

        • memory/3800-163-0x00000000055D0000-0x0000000005BF8000-memory.dmp

          Filesize

          6.2MB

        • memory/3800-164-0x0000000005490000-0x00000000054B2000-memory.dmp

          Filesize

          136KB

        • memory/3800-165-0x0000000005D70000-0x0000000005DD6000-memory.dmp

          Filesize

          408KB

        • memory/3800-166-0x0000000006460000-0x000000000647E000-memory.dmp

          Filesize

          120KB

        • memory/3800-177-0x00000000079D0000-0x0000000007A66000-memory.dmp

          Filesize

          600KB

        • memory/3800-176-0x00000000077E0000-0x00000000077EA000-memory.dmp

          Filesize

          40KB

        • memory/3800-175-0x0000000007760000-0x000000000777A000-memory.dmp

          Filesize

          104KB

        • memory/3800-174-0x0000000007DB0000-0x000000000842A000-memory.dmp

          Filesize

          6.5MB

        • memory/3800-172-0x0000000073DF0000-0x0000000073E3C000-memory.dmp

          Filesize

          304KB

        • memory/4032-151-0x0000000005310000-0x000000000534C000-memory.dmp

          Filesize

          240KB

        • memory/4032-132-0x0000000000000000-mapping.dmp

        • memory/4032-142-0x0000000000A60000-0x0000000000A7E000-memory.dmp

          Filesize

          120KB

        • memory/4032-168-0x0000000006F90000-0x00000000074BC000-memory.dmp

          Filesize

          5.2MB

        • memory/4032-167-0x0000000006890000-0x0000000006A52000-memory.dmp

          Filesize

          1.8MB

        • memory/4032-178-0x0000000006EC0000-0x0000000006F36000-memory.dmp

          Filesize

          472KB

        • memory/4032-179-0x0000000006F60000-0x0000000006F7E000-memory.dmp

          Filesize

          120KB

        • memory/4032-146-0x00000000058B0000-0x0000000005EC8000-memory.dmp

          Filesize

          6.1MB

        • memory/4032-148-0x00000000052B0000-0x00000000052C2000-memory.dmp

          Filesize

          72KB

        • memory/4032-153-0x00000000055B0000-0x00000000056BA000-memory.dmp

          Filesize

          1.0MB

        • memory/4156-189-0x0000000000000000-mapping.dmp

        • memory/4188-188-0x0000000000000000-mapping.dmp

        • memory/4364-187-0x0000000000000000-mapping.dmp

        • memory/4772-143-0x0000000073500000-0x0000000073CA8000-memory.dmp

          Filesize

          7.7MB

        • memory/4772-149-0x0000000074F90000-0x0000000075541000-memory.dmp

          Filesize

          5.7MB

        • memory/4772-145-0x0000000073D90000-0x0000000074890000-memory.dmp

          Filesize

          11.0MB

        • memory/4772-130-0x0000000074F90000-0x0000000075541000-memory.dmp

          Filesize

          5.7MB

        • memory/4772-131-0x0000000073D90000-0x0000000074890000-memory.dmp

          Filesize

          11.0MB

        • memory/4808-157-0x0000000000000000-mapping.dmp

        • memory/4864-185-0x0000000000000000-mapping.dmp