Analysis

  • max time kernel
    596s
  • max time network
    606s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 07:35

General

  • Target

    uni/Uni - Copy (104) - Copy - Copy - Copy.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

    Quasar is an open source Remote Access Tool.

  • Quasar payload 8 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 9 IoCs
  • Looks up external IP address via web service 20 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).

  • Creates scheduled task(s) 1 TTPs 10 IoCs

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

  • Runs ping.exe 1 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (104) - Copy - Copy - Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (104) - Copy - Copy - Copy.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (104) - Copy - Copy - Copy.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:1576
    • 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 WriteProcessMemory
      PID:2276
      • 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:2356
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\Nq5cDvyjLNju.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2100
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:1260
          • C:\Windows\SysWOW64\PING.EXE
            ping -n 10 localhost
            4⤵
            • Runs ping.exe
            PID:2264
          • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
            "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2092
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
              5⤵
              • Creates scheduled task(s)
              PID:1368
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\qEICnbvZPQGc.bat" "
              5⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1924
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                6⤵
                  PID:572
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:2324
                • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:2212
                  • C:\Windows\SysWOW64\schtasks.exe
                    "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                    7⤵
                    • Creates scheduled task(s)
                    PID:2768
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ""C:\Users\Admin\AppData\Local\Temp\oqSTvxz8AvrW.bat" "
                    7⤵
                    • Loads dropped DLL
                    PID:2544
                    • C:\Windows\SysWOW64\chcp.com
                      chcp 65001
                      8⤵
                        PID:3060
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 10 localhost
                        8⤵
                        • Runs ping.exe
                        PID:2072
                      • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                        "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                        8⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2848
                        • C:\Windows\SysWOW64\schtasks.exe
                          "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                          9⤵
                          • Creates scheduled task(s)
                          PID:2320
                        • C:\Windows\SysWOW64\cmd.exe
                          cmd /c ""C:\Users\Admin\AppData\Local\Temp\UmG5d320TMNq.bat" "
                          9⤵
                          • Loads dropped DLL
                          PID:2356
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            10⤵
                              PID:1492
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              10⤵
                              • Runs ping.exe
                              PID:2136
                            • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                              "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                              10⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1988
                              • C:\Windows\SysWOW64\schtasks.exe
                                "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                11⤵
                                • Creates scheduled task(s)
                                PID:1852
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd /c ""C:\Users\Admin\AppData\Local\Temp\l4n2De6Hhx4L.bat" "
                                11⤵
                                • Loads dropped DLL
                                PID:1092
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  12⤵
                                    PID:1316
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    12⤵
                                    • Runs ping.exe
                                    PID:1908
                                  • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                    "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                    12⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:1048
                                    • C:\Windows\SysWOW64\schtasks.exe
                                      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                      13⤵
                                      • Creates scheduled task(s)
                                      PID:1568
                                    • C:\Windows\SysWOW64\cmd.exe
                                      cmd /c ""C:\Users\Admin\AppData\Local\Temp\Q0aevl99zOaf.bat" "
                                      13⤵
                                      • Loads dropped DLL
                                      PID:1796
                                      • C:\Windows\SysWOW64\chcp.com
                                        chcp 65001
                                        14⤵
                                          PID:2404
                                        • C:\Windows\SysWOW64\PING.EXE
                                          ping -n 10 localhost
                                          14⤵
                                          • Runs ping.exe
                                          PID:2680
                                        • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                          "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                          14⤵
                                          • Executes dropped EXE
                                          • Suspicious use of AdjustPrivilegeToken
                                          PID:2408
                                          • C:\Windows\SysWOW64\schtasks.exe
                                            "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                            15⤵
                                            • Creates scheduled task(s)
                                            PID:308
                                          • C:\Windows\SysWOW64\cmd.exe
                                            cmd /c ""C:\Users\Admin\AppData\Local\Temp\qputq299wZYs.bat" "
                                            15⤵
                                            • Loads dropped DLL
                                            PID:3020
                                            • C:\Windows\SysWOW64\chcp.com
                                              chcp 65001
                                              16⤵
                                                PID:800
                                              • C:\Windows\SysWOW64\PING.EXE
                                                ping -n 10 localhost
                                                16⤵
                                                • Runs ping.exe
                                                PID:2624
                                              • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                                "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                                16⤵
                                                • Executes dropped EXE
                                                • Suspicious use of AdjustPrivilegeToken
                                                PID:2996
                                                • C:\Windows\SysWOW64\schtasks.exe
                                                  "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
                                                  17⤵
                                                  • Creates scheduled task(s)
                                                  PID:2600
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  cmd /c ""C:\Users\Admin\AppData\Local\Temp\SktllO2hjBNI.bat" "
                                                  17⤵
                                                  • Loads dropped DLL
                                                  PID:628
                                                  • C:\Windows\SysWOW64\chcp.com
                                                    chcp 65001
                                                    18⤵
                                                      PID:2484
                                                    • C:\Windows\SysWOW64\PING.EXE
                                                      ping -n 10 localhost
                                                      18⤵
                                                      • Runs ping.exe
                                                      PID:1776
                                                    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
                                                      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
                                                      18⤵
                                                      • Executes dropped EXE
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      PID:2148
                    • C:\Windows\SysWOW64\SCHTASKS.exe
                      "SCHTASKS.exe" /create /tn "$77Uni - Copy (104) - Copy - Copy - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (104) - Copy - Copy - Copy.exe'" /sc onlogon /rl HIGHEST
                      2⤵
                      • Creates scheduled task(s)
                      PID:2280

                  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

                  Discovery

                  System Information Discovery

                  1
                  T1082

                  Remote System Discovery

                  1
                  T1018

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\Nq5cDvyjLNju.bat
                    Filesize

                    207B

                    MD5

                    bc00fcd9f02032baa66251f7b144921c

                    SHA1

                    8f847cb8f8e1a3ebc52ded2c8bbf985e1d0be915

                    SHA256

                    93cf94bdd7a739d01e2c1142a87894a99ff175160711489821bf865e18fc73fc

                    SHA512

                    a471cc8fee0f7fe7238fee9483028b3a713b1475ae7749afd33b7c31d200b26097570220d654a17a6a578c59489dbe663b89c0552c7c3143cc13f1cc336a2e5d

                  • C:\Users\Admin\AppData\Local\Temp\Q0aevl99zOaf.bat
                    Filesize

                    207B

                    MD5

                    603f0c1f23dfdd4176bfe9bc183a9cf1

                    SHA1

                    73b13baacca70accd43939586db9c38c9c463d2a

                    SHA256

                    2bcd8b7c750cee9560d8c3874303365fcc64f46a12962b2f394471e32c90da36

                    SHA512

                    3a72a31c1bc39c63c9ea211062e6e42d813da0df2c26fcea23a62565ac3e6a77d39b345ff756d06d7f11c1fc31a17c2b6341e2f1c13d8535d3c5a09a70eb243d

                  • C:\Users\Admin\AppData\Local\Temp\SktllO2hjBNI.bat
                    Filesize

                    207B

                    MD5

                    07768a2ba46cc4d467ef875b00c770bf

                    SHA1

                    b00a20160021b41d6f95563b724028a1ac1302cd

                    SHA256

                    94a41f0c5906e3cda5cb0661032233726464f08e692899b4462c58ab7bca8d11

                    SHA512

                    cff6d610eaf95cd768ba10831ae53ea0edf07540d1608590986cae2696ea04222cdee438b9a6473c263bce1a3db7eda4241caa0a035a174660c8bf0f7e4a543d

                  • C:\Users\Admin\AppData\Local\Temp\UmG5d320TMNq.bat
                    Filesize

                    207B

                    MD5

                    66e9b406875a4f0ba90e8a177bb16cc7

                    SHA1

                    0cf41ed7ac9d0bf9c191f3b27a334768e6de7386

                    SHA256

                    11060773b86e15afe0e70f09615cd238c613c550087f1e995fc2974d0fa12395

                    SHA512

                    746c9428e5c416c514d6239f3cfb0f62d363e36fb2bd9b4c58b2fb457dbebfadceafc90afaa3b0fa4d1c03fbc749e26428c1f026d691f51faba7b0d8fc10190b

                  • C:\Users\Admin\AppData\Local\Temp\l4n2De6Hhx4L.bat
                    Filesize

                    207B

                    MD5

                    3194c4238030920959e872238220565d

                    SHA1

                    740295542b3e69cfc1b3ce1b21a6b9b364b95712

                    SHA256

                    754a7fff9d598f64b68ecae00756841811f75249f8a20fe7f385f802a1734b90

                    SHA512

                    7aee318919ab1fad6705de5890396917b9eb962344328241edd6ca58e6045df516a7c58ac44aed7d51ce8877bb349c3d04a8a4a28ecb8cc5c52e133541a40311

                  • C:\Users\Admin\AppData\Local\Temp\oqSTvxz8AvrW.bat
                    Filesize

                    207B

                    MD5

                    cf65173cfaf212ce09cb6ffc42ac1c01

                    SHA1

                    3af972d312ac8d2c9053709de1cfb59859b60062

                    SHA256

                    3e234657b132f9feefbff9d48abf3c8a1599397808d57f5cc758dce39d8d8caa

                    SHA512

                    df15d05e2120ff0d0706456fd16a5899f20b6fdf29e7352c591f425def5dfaaaf02e7cd500af5325b524bb0dbb0d90636abf7a74d547354e0d798e797a0c5670

                  • C:\Users\Admin\AppData\Local\Temp\qEICnbvZPQGc.bat
                    Filesize

                    207B

                    MD5

                    d9a304e6ba48389296fb1acc82ffe257

                    SHA1

                    b8499d94470c40069de470af2198c3421ffa14ae

                    SHA256

                    c9e5e977596fecbeee69b5bf5ebf4ce319461962ed9bb51a0b158c1ae368e2de

                    SHA512

                    c8d8865a8e3a07e829fb4e415275c6944764aafaee3ba380ca730f0c42e1b519e3c87b71f7b2836e3220843b0a124aff22db2937e9d6299bbe54193d741df595

                  • C:\Users\Admin\AppData\Local\Temp\qputq299wZYs.bat
                    Filesize

                    207B

                    MD5

                    fb987d72d46df57269fdb1a24744d8f1

                    SHA1

                    cf137e277d142fd551876b35c1fb856296dbf55f

                    SHA256

                    31bb3a3889dcebd70ee0d5579e1121cd6b99937b49a529f12615b9eccb862af0

                    SHA512

                    d89ebd70070f098dcb0dcc164387f15b3fddf4922bf223d7e3f675c34c8e86c940d3cf06e538cd271a4b153e723bf45f6d1f85d25fabf91957525544e847c18d

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

                    409KB

                    MD5

                    b70fdac25a99501e3cae11f1b775249e

                    SHA1

                    3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

                    SHA256

                    51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

                    SHA512

                    43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

                  • memory/1048-77-0x0000000001250000-0x00000000012BC000-memory.dmp
                    Filesize

                    432KB

                  • memory/1988-65-0x0000000001250000-0x00000000012BC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2092-29-0x00000000001C0000-0x000000000022C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2196-15-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2196-0-0x00000000746DE000-0x00000000746DF000-memory.dmp
                    Filesize

                    4KB

                  • memory/2196-4-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2196-3-0x00000000746DE000-0x00000000746DF000-memory.dmp
                    Filesize

                    4KB

                  • memory/2196-2-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2196-1-0x0000000000BD0000-0x0000000000C3C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2212-41-0x0000000000380000-0x00000000003EC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2276-13-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2276-25-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2276-16-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2276-12-0x0000000000170000-0x00000000001DC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2276-14-0x00000000746D0000-0x0000000074DBE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2848-53-0x0000000000AC0000-0x0000000000B2C000-memory.dmp
                    Filesize

                    432KB