Analysis

  • max time kernel
    293s
  • max time network
    292s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-06-2024 06:22

General

  • Target

    uni/Uni - Copy (3).exe

  • Size

    409KB

  • MD5

    b70fdac25a99501e3cae11f1b775249e

  • SHA1

    3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

  • SHA256

    51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

  • SHA512

    43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

  • SSDEEP

    12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

C2

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes
  • encryption_key

    Lme7VBS3l58VwLM69PNM

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    SeroXen

  • subdirectory

    SubDir

Signatures

  • Quasar RAT 3 IoCs

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (3).exe
    "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (3).exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (3).exe" /rl HIGHEST /f
      2⤵
      • Quasar RAT
      • Creates scheduled task(s)
      PID:4920
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:1348
      • C:\Users\Admin\AppData\Local\Temp\TfvrCVkglXpK.exe
        "C:\Users\Admin\AppData\Local\Temp\TfvrCVkglXpK.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:228
      • C:\Windows\SysWOW64\SCHTASKS.exe
        "SCHTASKS.exe" /create /tn "$77Client.exe" /tr "'C:\Users\Admin\AppData\Roaming\SubDir\Client.exe'" /sc onlogon /rl HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2756
    • C:\Windows\SysWOW64\SCHTASKS.exe
      "SCHTASKS.exe" /create /tn "$77Uni - Copy (3).exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (3).exe'" /sc onlogon /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4364
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x4a0 0x4b8
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:636
  • C:\Program Files\VideoLAN\VLC\vlc.exe
    "C:\Program Files\VideoLAN\VLC\vlc.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:1984
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DisplayEnhancementService
    1⤵
      PID:3452
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefault2bc9843ah835bh4480hb51ehef72523eabee
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x120,0x124,0x128,0xfc,0x12c,0x7ffae73046f8,0x7ffae7304708,0x7ffae7304718
        2⤵
          PID:620
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2040,12407079102197008087,15440561139931033630,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2056 /prefetch:2
          2⤵
            PID:4808
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2040,12407079102197008087,15440561139931033630,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2172 /prefetch:3
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2620
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2040,12407079102197008087,15440561139931033630,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2736 /prefetch:8
            2⤵
              PID:4768
          • C:\Windows\System32\CompPkgSrv.exe
            C:\Windows\System32\CompPkgSrv.exe -Embedding
            1⤵
              PID:720
            • C:\Windows\System32\CompPkgSrv.exe
              C:\Windows\System32\CompPkgSrv.exe -Embedding
              1⤵
                PID:2300

              Network

              MITRE ATT&CK Matrix ATT&CK v13

              Execution

              Scheduled Task/Job

              1
              T1053

              Persistence

              Scheduled Task/Job

              1
              T1053

              Privilege Escalation

              Scheduled Task/Job

              1
              T1053

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                Filesize

                152B

                MD5

                4dc6fc5e708279a3310fe55d9c44743d

                SHA1

                a42e8bdf9d1c25ef3e223d59f6b1d16b095f46d2

                SHA256

                a1c5f48659d4b3af960971b3a0f433a95fee5bfafe5680a34110c68b342377d8

                SHA512

                5874b2310187f242b852fa6dcded244cc860abb2be4f6f5a6a1db8322e12e1fef8f825edc0aae75adbb7284a2cd64730650d0643b1e2bb7ead9350e50e1d8c13

              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                Filesize

                5KB

                MD5

                498e00f5c4dc5f42fde3f0888707c15f

                SHA1

                e7a35286c1eb16d800aca6be76940ca4ed138dd7

                SHA256

                5c41892dfdfd8876ba258dc3c4cf987992c4cf642c8c419252b8872f1276121a

                SHA512

                39b86e8a241a5b0e6113ba4208ebca0e0cf0ce2a4d6e608027b7467b8a8f73aaa0125679fd5436f1138e63f6c99e128ef1e43dc10677c161fda2a31a9e70141c

              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                Filesize

                8KB

                MD5

                5279b93b6e52f29513ef79e445e85bcc

                SHA1

                08fb148425fca0a9b20cc3e4d586811717a7a223

                SHA256

                cf1a50ff667244d059430db1d843e01ba138d3aa568bc92da5715625c6b1f0a9

                SHA512

                ad2ea19952f96b5d105e1b47926a429e52e1e7b185cb056f1c55ddc1e3f011b96fcb1b22f332c691088fe80ee9337899c5ca55663265a6d0f26a082b70ac9510

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

                277KB

                MD5

                dac0c5b2380cbdd93b46763427c9f8df

                SHA1

                038089e1a0ac8375be797fc3ce7ae719abc72834

                SHA256

                d02538788fb57f568ece292f5fc20e9775c86d504de67f57e22534f84adc73c6

                SHA512

                05cc1f6bf25a6545a06c735ae7a4a7fc25489bdb9fbc8d5797be623982662c4a93cba2d20bfe14313ef1548eaaa691e55fabdd8e3d3e45de9ab42dc62f9a7023

              • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                Filesize

                409KB

                MD5

                b70fdac25a99501e3cae11f1b775249e

                SHA1

                3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

                SHA256

                51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

                SHA512

                43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

              • C:\Users\Admin\Desktop\ImportMerge.ppsx
                Filesize

                363KB

                MD5

                7e5c7daf9cb3edbf51f85ff2f858db2b

                SHA1

                e98d2c924585b4d926b4116f8d08a765ec4e1bce

                SHA256

                4c42e764590c273525371da54672f91d0c662cba98ada96c4a5788b5cdad7c00

                SHA512

                1b1f90e80632fd9597fe088f3c3187da210e2208f1cc730090587c514a896b500ab00c0c6f94e133112ca1d92daf47c12e06a50188699d231fef2e2dcea491eb

              • \??\pipe\LOCAL\crashpad_940_EBOGZWNGVAWFQYPE
                MD5

                d41d8cd98f00b204e9800998ecf8427e

                SHA1

                da39a3ee5e6b4b0d3255bfef95601890afd80709

                SHA256

                e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                SHA512

                cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

              • memory/1596-5-0x0000000005740000-0x00000000057A6000-memory.dmp
                Filesize

                408KB

              • memory/1596-6-0x0000000006340000-0x0000000006352000-memory.dmp
                Filesize

                72KB

              • memory/1596-1-0x0000000000BB0000-0x0000000000C1C000-memory.dmp
                Filesize

                432KB

              • memory/1596-15-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1596-2-0x0000000005AF0000-0x0000000006094000-memory.dmp
                Filesize

                5.6MB

              • memory/1596-3-0x00000000056A0000-0x0000000005732000-memory.dmp
                Filesize

                584KB

              • memory/1596-0-0x000000007519E000-0x000000007519F000-memory.dmp
                Filesize

                4KB

              • memory/1596-4-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1604-16-0x0000000006900000-0x000000000693C000-memory.dmp
                Filesize

                240KB

              • memory/1604-157-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1604-20-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1604-19-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1604-18-0x0000000006F10000-0x0000000006F1A000-memory.dmp
                Filesize

                40KB

              • memory/1604-12-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1604-13-0x0000000075190000-0x0000000075940000-memory.dmp
                Filesize

                7.7MB

              • memory/1984-31-0x00007FFAE9FC0000-0x00007FFAEA276000-memory.dmp
                Filesize

                2.7MB

              • memory/1984-34-0x00007FFAF88F0000-0x00007FFAF8901000-memory.dmp
                Filesize

                68KB

              • memory/1984-33-0x00007FFAF8D80000-0x00007FFAF8D97000-memory.dmp
                Filesize

                92KB

              • memory/1984-32-0x00007FFAF8FF0000-0x00007FFAF9008000-memory.dmp
                Filesize

                96KB

              • memory/1984-30-0x00007FFAF8A80000-0x00007FFAF8AB4000-memory.dmp
                Filesize

                208KB

              • memory/1984-49-0x00007FFAE8060000-0x00007FFAE9110000-memory.dmp
                Filesize

                16.7MB

              • memory/1984-60-0x00007FFAE8060000-0x00007FFAE9110000-memory.dmp
                Filesize

                16.7MB

              • memory/1984-71-0x00007FFAE8060000-0x00007FFAE9110000-memory.dmp
                Filesize

                16.7MB

              • memory/1984-35-0x00007FFAF8570000-0x00007FFAF8587000-memory.dmp
                Filesize

                92KB

              • memory/1984-38-0x00007FFAE8060000-0x00007FFAE9110000-memory.dmp
                Filesize

                16.7MB

              • memory/1984-36-0x00007FFAF8550000-0x00007FFAF856D000-memory.dmp
                Filesize

                116KB

              • memory/1984-39-0x00007FFAF81A0000-0x00007FFAF8207000-memory.dmp
                Filesize

                412KB

              • memory/1984-131-0x00007FFAE8060000-0x00007FFAE9110000-memory.dmp
                Filesize

                16.7MB

              • memory/1984-37-0x00007FFAF8530000-0x00007FFAF8541000-memory.dmp
                Filesize

                68KB

              • memory/1984-29-0x00007FF60D650000-0x00007FF60D748000-memory.dmp
                Filesize

                992KB