Analysis

  • max time kernel
    597s
  • max time network
    607s
  • 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 (100) - 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 11 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 (100) - Copy - Copy - Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy - Copy.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy - Copy.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2444
    • 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:1156
      • 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:2868
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\ErOvjtpXDqIm.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2652
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:1288
          • C:\Windows\SysWOW64\PING.EXE
            ping -n 10 localhost
            4⤵
            • Runs ping.exe
            PID:1936
          • 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:2132
            • 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:1812
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\EWocV6IiHNeB.bat" "
              5⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1640
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                6⤵
                  PID:568
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:2300
                • 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:1736
                  • 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:2992
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c ""C:\Users\Admin\AppData\Local\Temp\Jigx5aTSfYVU.bat" "
                    7⤵
                    • Loads dropped DLL
                    PID:2580
                    • C:\Windows\SysWOW64\chcp.com
                      chcp 65001
                      8⤵
                        PID:2852
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 10 localhost
                        8⤵
                        • Runs ping.exe
                        PID:2604
                      • 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:2804
                        • 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:1076
                        • C:\Windows\SysWOW64\cmd.exe
                          cmd /c ""C:\Users\Admin\AppData\Local\Temp\NqonnsIQdqhC.bat" "
                          9⤵
                          • Loads dropped DLL
                          PID:2868
                          • C:\Windows\SysWOW64\chcp.com
                            chcp 65001
                            10⤵
                              PID:1196
                            • C:\Windows\SysWOW64\PING.EXE
                              ping -n 10 localhost
                              10⤵
                              • Runs ping.exe
                              PID:2648
                            • 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:2020
                              • 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:2028
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd /c ""C:\Users\Admin\AppData\Local\Temp\2mbOUzLHwGDW.bat" "
                                11⤵
                                • Loads dropped DLL
                                PID:1812
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  12⤵
                                    PID:892
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    12⤵
                                    • Runs ping.exe
                                    PID:928
                                  • 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:544
                                    • 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:2180
                                    • C:\Windows\SysWOW64\cmd.exe
                                      cmd /c ""C:\Users\Admin\AppData\Local\Temp\vsn85OdSU0Ec.bat" "
                                      13⤵
                                      • Loads dropped DLL
                                      PID:2992
                                      • C:\Windows\SysWOW64\chcp.com
                                        chcp 65001
                                        14⤵
                                          PID:2900
                                        • C:\Windows\SysWOW64\PING.EXE
                                          ping -n 10 localhost
                                          14⤵
                                          • Runs ping.exe
                                          PID:996
                                        • 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:2488
                                          • 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:1904
                                          • C:\Windows\SysWOW64\cmd.exe
                                            cmd /c ""C:\Users\Admin\AppData\Local\Temp\vz7EzwI7wUiR.bat" "
                                            15⤵
                                            • Loads dropped DLL
                                            PID:2212
                                            • C:\Windows\SysWOW64\chcp.com
                                              chcp 65001
                                              16⤵
                                                PID:1800
                                              • C:\Windows\SysWOW64\PING.EXE
                                                ping -n 10 localhost
                                                16⤵
                                                • Runs ping.exe
                                                PID:1052
                                              • 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:752
                                                • 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:1612
                                                • C:\Windows\SysWOW64\cmd.exe
                                                  cmd /c ""C:\Users\Admin\AppData\Local\Temp\CHfCZWMPA6Pw.bat" "
                                                  17⤵
                                                  • Loads dropped DLL
                                                  PID:2468
                                                  • C:\Windows\SysWOW64\chcp.com
                                                    chcp 65001
                                                    18⤵
                                                      PID:1064
                                                    • C:\Windows\SysWOW64\PING.EXE
                                                      ping -n 10 localhost
                                                      18⤵
                                                      • Runs ping.exe
                                                      PID:824
                                                    • 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:2412
                    • C:\Windows\SysWOW64\SCHTASKS.exe
                      "SCHTASKS.exe" /create /tn "$77Uni - Copy (100) - Copy - Copy - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy - Copy.exe'" /sc onlogon /rl HIGHEST
                      2⤵
                      • Creates scheduled task(s)
                      PID:1088

                  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\2mbOUzLHwGDW.bat
                    Filesize

                    207B

                    MD5

                    ca57e341ac6dfb3c390e6338c5beddc7

                    SHA1

                    14dc97562760e5ed51ceb6c5731e70835d4f0fc4

                    SHA256

                    34811e6c0be0a141d75cf982cf1fcd60ad5d86026e6a168554b054c371fa6af7

                    SHA512

                    44f907511b2ddc531c224e6e706e5d67739c95f1187d2f8325bb3e7e7353f955dfcde101f6d7fc7ca16164a0a98e6869afdfc92d852c1d0c2ab956d91cd8876c

                  • C:\Users\Admin\AppData\Local\Temp\CHfCZWMPA6Pw.bat
                    Filesize

                    207B

                    MD5

                    f9a84f0631ca0d0ce77138b1c81ed1a0

                    SHA1

                    670fa4710e84b332f135e922a5aaefa0eea80ded

                    SHA256

                    3c5e0684afc2a87a8ed5ea539fe988d5c8402d08bfcca95f9648c3e85e6c75bf

                    SHA512

                    695b1620d16b32fd7bc4f31c5dbcd147cc952693fff37dece6db22acfa51625e0e95e2906adc6dcc80c61a917883f502bfaaa89483be2cfaafe0c219060e5667

                  • C:\Users\Admin\AppData\Local\Temp\EWocV6IiHNeB.bat
                    Filesize

                    207B

                    MD5

                    3570cb0b9d720908e808ff43f68b0653

                    SHA1

                    e456fc4c21b1d28b779d77ee69f791bdb6fc37db

                    SHA256

                    360fd3525acaa03022713725329983f7bdbe25d5936b12c745f9d84aec804f35

                    SHA512

                    e1763deff63ac5f1f47771cc8c716962d24a8cf2850249f1c88d019c8d526bfe0058dec903fa3dc6985a6097df060b3845b372dd616271a054e8fff00b1d0974

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

                    207B

                    MD5

                    da255af32ff6f2755fa8c493f703e129

                    SHA1

                    6aacd2cbbe53f447d0fa9926e7741d6297853f71

                    SHA256

                    b6bb76e5a0fabaaf06972bb017890d7328ee6c472213e1f1cee69dc440239099

                    SHA512

                    f1807ea482ad3ee74b1fa356acd8653bc00a9245246897bd4278b47ce2a541068a5ba649dd4d511377df9f8a694782328afe2742b9375e2650da3e5d8f263b92

                  • C:\Users\Admin\AppData\Local\Temp\Jigx5aTSfYVU.bat
                    Filesize

                    207B

                    MD5

                    60baf18f8e86fa20850068616bfe389a

                    SHA1

                    4a505d0c36179a7bb226f0320ddd57b9dc6b784e

                    SHA256

                    623ad67b1fbc6b652c0d554c8ec24bc50932df1fddf57065e523c1bc266701a9

                    SHA512

                    dc73bf79665fc7323623b8861ee1160ac7a9fe05d47e07273678a38111716f70828157624e8f38f73b654374e59ad51174b5e390082829a2ba820d126f4b2776

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

                    207B

                    MD5

                    cd23c31300ea699f1feb36babcc281a0

                    SHA1

                    b312632f769c3050dd85ca149479d4219247e7e8

                    SHA256

                    f685df3da416e0a8f699389a893d6c0635dbf7de598200fb0252e1951a3d5e5c

                    SHA512

                    f8ecdd7b3ee20cb2a0bb2d492cd3d62524893fa677523df8a454093c8205f7cb24f0ed3d4ad0afdc55d2184f1e85a145ec1bd81648a0c6b3ac37d1b2e5506674

                  • C:\Users\Admin\AppData\Local\Temp\vsn85OdSU0Ec.bat
                    Filesize

                    207B

                    MD5

                    ac3a76ae77f0a1f6ed4a630fa1f7cb07

                    SHA1

                    dc29935eae838d3fe8692aa6616f9d927847f5e4

                    SHA256

                    d1d67306bd96f14ac8e4704b3c1c21054b65c893c60cdf3f1c68cc337bde9fa2

                    SHA512

                    e868f5300321affe68cc34bd70134c7d599f95f46ee7b00c091a3dc3ed6d3f9378c4d250ae6f55a21cc654f93be5b361d88a664284de7e199bc623cebce760d3

                  • C:\Users\Admin\AppData\Local\Temp\vz7EzwI7wUiR.bat
                    Filesize

                    207B

                    MD5

                    b5ea9559194603e8d0eb78667d3706d4

                    SHA1

                    f36af3c9f2dda4219cfdfe519f9116fd1d32c8e4

                    SHA256

                    c2a5e5b74e84de7825d17b9c7cb295b6c94309e8b449b3f73ad66c7c2c1d529b

                    SHA512

                    d4bfc758f7172011bf2212352331354f7f3e8fcc524293af8cc3c1360b138052c64214203dc2ed877ae808622e444e2c8ed61c0c4345e463caba7631b15440b6

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

                    409KB

                    MD5

                    b70fdac25a99501e3cae11f1b775249e

                    SHA1

                    3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

                    SHA256

                    51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

                    SHA512

                    43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

                  • memory/544-77-0x0000000000100000-0x000000000016C000-memory.dmp
                    Filesize

                    432KB

                  • memory/752-101-0x0000000000FB0000-0x000000000101C000-memory.dmp
                    Filesize

                    432KB

                  • memory/1156-12-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/1156-13-0x00000000011B0000-0x000000000121C000-memory.dmp
                    Filesize

                    432KB

                  • memory/1156-16-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/1156-14-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/1156-25-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/1736-41-0x0000000000A60000-0x0000000000ACC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2020-65-0x0000000000D30000-0x0000000000D9C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2132-29-0x0000000000220000-0x000000000028C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2204-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp
                    Filesize

                    4KB

                  • memory/2204-4-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2204-3-0x0000000074B1E000-0x0000000074B1F000-memory.dmp
                    Filesize

                    4KB

                  • memory/2204-2-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2204-15-0x0000000074B10000-0x00000000751FE000-memory.dmp
                    Filesize

                    6.9MB

                  • memory/2204-1-0x0000000001010000-0x000000000107C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2412-113-0x0000000000FB0000-0x000000000101C000-memory.dmp
                    Filesize

                    432KB

                  • memory/2488-89-0x0000000000940000-0x00000000009AC000-memory.dmp
                    Filesize

                    432KB

                  • memory/2804-53-0x0000000000C60000-0x0000000000CCC000-memory.dmp
                    Filesize

                    432KB