Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/05/2026, 05:52

General

  • Target
    backup.exe
  • Size 3.1MB
  • Sample260503-gkp7tab151
  • SHA256 11d1beff4e8cdf50f73298ba1e8cc5127994d2b6bd396196e1f4231aebb66e6c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • xoilac

C2
  • aidas.us:443

  • backup.aidas.us:443

  • trojan.aidas.us:443

  • ransom.aidas.us:443

  • phisher.aidas.us:443

  • malicious.aidas.us:443

Mutex
  • b074bb76-509d-4f22-9881-b2e406eacc36

Attributes
  • encryption_key

    B7E4985BC6F561AFD5FC99CACB2E00523B40A73D

  • install_name

    molliza.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    malware

  • subdirectory

    malware

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Checks computer location settings 2 TTPs 9 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 10 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 9 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 9 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 10 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\backup.exe
    "C:\Users\Admin\AppData\Local\Temp\backup.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5428
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1860
    • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
      "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:740
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mp363taA7Akw.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:2540
          • C:\Windows\system32\PING.EXE
            ping -n 10 localhost
            4⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:3380
          • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
            "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
            4⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2288
            • C:\Windows\SYSTEM32\schtasks.exe
              "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
              5⤵
              • Scheduled Task/Job: Scheduled Task
              PID:5192
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\P9DYZENbLjHY.bat" "
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:3984
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:5372
                • C:\Windows\system32\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:6028
                • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                  "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                  6⤵
                  • Checks computer location settings
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:2848
                  • C:\Windows\SYSTEM32\schtasks.exe
                    "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                    7⤵
                    • Scheduled Task/Job: Scheduled Task
                    PID:5064
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\lNMu70PD7RZv.bat" "
                    7⤵
                    • Suspicious use of WriteProcessMemory
                    PID:5404
                    • C:\Windows\system32\chcp.com
                      chcp 65001
                      8⤵
                        PID:3312
                      • C:\Windows\system32\PING.EXE
                        ping -n 10 localhost
                        8⤵
                        • System Network Configuration Discovery: Internet Connection Discovery
                        • Runs ping.exe
                        PID:4248
                      • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                        "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                        8⤵
                        • Checks computer location settings
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        PID:2400
                        • C:\Windows\SYSTEM32\schtasks.exe
                          "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                          9⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:3960
                        • C:\Windows\system32\cmd.exe
                          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ZgSBylc5KUJZ.bat" "
                          9⤵
                          • Suspicious use of WriteProcessMemory
                          PID:5444
                          • C:\Windows\system32\chcp.com
                            chcp 65001
                            10⤵
                              PID:3416
                            • C:\Windows\system32\PING.EXE
                              ping -n 10 localhost
                              10⤵
                              • System Network Configuration Discovery: Internet Connection Discovery
                              • Runs ping.exe
                              PID:648
                            • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                              "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                              10⤵
                              • Checks computer location settings
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              PID:4348
                              • C:\Windows\SYSTEM32\schtasks.exe
                                "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                                11⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:2724
                              • C:\Windows\system32\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\axo2N6VkzEnC.bat" "
                                11⤵
                                • Suspicious use of WriteProcessMemory
                                PID:3840
                                • C:\Windows\system32\chcp.com
                                  chcp 65001
                                  12⤵
                                    PID:4576
                                  • C:\Windows\system32\PING.EXE
                                    ping -n 10 localhost
                                    12⤵
                                    • System Network Configuration Discovery: Internet Connection Discovery
                                    • Runs ping.exe
                                    PID:216
                                  • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                                    "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                                    12⤵
                                    • Checks computer location settings
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of WriteProcessMemory
                                    PID:2512
                                    • C:\Windows\SYSTEM32\schtasks.exe
                                      "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                                      13⤵
                                      • Scheduled Task/Job: Scheduled Task
                                      PID:5508
                                    • C:\Windows\system32\cmd.exe
                                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cKDseLzNv7JV.bat" "
                                      13⤵
                                      • Suspicious use of WriteProcessMemory
                                      PID:3796
                                      • C:\Windows\system32\chcp.com
                                        chcp 65001
                                        14⤵
                                          PID:5312
                                        • C:\Windows\system32\PING.EXE
                                          ping -n 10 localhost
                                          14⤵
                                          • System Network Configuration Discovery: Internet Connection Discovery
                                          • Runs ping.exe
                                          PID:5716
                                        • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                                          "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                                          14⤵
                                          • Checks computer location settings
                                          • Executes dropped EXE
                                          • Suspicious use of AdjustPrivilegeToken
                                          • Suspicious use of WriteProcessMemory
                                          PID:5660
                                          • C:\Windows\SYSTEM32\schtasks.exe
                                            "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                                            15⤵
                                            • Scheduled Task/Job: Scheduled Task
                                            PID:5636
                                          • C:\Windows\system32\cmd.exe
                                            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SVVWxPrKysLn.bat" "
                                            15⤵
                                            • Suspicious use of WriteProcessMemory
                                            PID:5588
                                            • C:\Windows\system32\chcp.com
                                              chcp 65001
                                              16⤵
                                                PID:888
                                              • C:\Windows\system32\PING.EXE
                                                ping -n 10 localhost
                                                16⤵
                                                • System Network Configuration Discovery: Internet Connection Discovery
                                                • Runs ping.exe
                                                PID:5364
                                              • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                                                "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                                                16⤵
                                                • Checks computer location settings
                                                • Executes dropped EXE
                                                • Suspicious use of AdjustPrivilegeToken
                                                • Suspicious use of WriteProcessMemory
                                                PID:4704
                                                • C:\Windows\SYSTEM32\schtasks.exe
                                                  "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                                                  17⤵
                                                  • Scheduled Task/Job: Scheduled Task
                                                  PID:4768
                                                • C:\Windows\system32\cmd.exe
                                                  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YNKfqdW7csCX.bat" "
                                                  17⤵
                                                  • Suspicious use of WriteProcessMemory
                                                  PID:4892
                                                  • C:\Windows\system32\chcp.com
                                                    chcp 65001
                                                    18⤵
                                                      PID:4960
                                                    • C:\Windows\system32\PING.EXE
                                                      ping -n 10 localhost
                                                      18⤵
                                                      • System Network Configuration Discovery: Internet Connection Discovery
                                                      • Runs ping.exe
                                                      PID:3632
                                                    • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                                                      "C:\Users\Admin\AppData\Roaming\malware\molliza.exe"
                                                      18⤵
                                                      • Checks computer location settings
                                                      • Executes dropped EXE
                                                      • Suspicious use of AdjustPrivilegeToken
                                                      • Suspicious use of WriteProcessMemory
                                                      PID:2720
                                                      • C:\Windows\SYSTEM32\schtasks.exe
                                                        "schtasks" /create /tn "malware" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\malware\molliza.exe" /rl HIGHEST /f
                                                        19⤵
                                                        • Scheduled Task/Job: Scheduled Task
                                                        PID:2184
                                                      • C:\Windows\system32\cmd.exe
                                                        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2zsxTCtlMYWV.bat" "
                                                        19⤵
                                                        • Suspicious use of WriteProcessMemory
                                                        PID:1524
                                                        • C:\Windows\system32\chcp.com
                                                          chcp 65001
                                                          20⤵
                                                            PID:5308
                                                          • C:\Windows\system32\PING.EXE
                                                            ping -n 10 localhost
                                                            20⤵
                                                            • System Network Configuration Discovery: Internet Connection Discovery
                                                            • Runs ping.exe
                                                            PID:3868
                    • C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                      C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1684

                    Network

                          MITRE ATT&CK Enterprise v16

                          Replay Monitor

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                          Downloads

                          molliza.exe.log

                          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\molliza.exe.log
                          • Size 1KB
                          • SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
                          • MD5 SHA1 SHA512 TLSH

                          2zsxTCtlMYWV.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\2zsxTCtlMYWV.bat
                          • Size 209B
                          • SHA256 bf00a8f7c64beb639ae7ef3e6d5ce4adf9dfbce00224c922b4f5588785b5c01b
                          • MD5 SHA1 SHA512 TLSH

                          P9DYZENbLjHY.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\P9DYZENbLjHY.bat
                          • Size 209B
                          • SHA256 8b144e68af025d53278b477ba5a56ac982f36dcbb16b5762466c413b4bc96948
                          • MD5 SHA1 SHA512 TLSH

                          SVVWxPrKysLn.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\SVVWxPrKysLn.bat
                          • Size 209B
                          • SHA256 30226957d21b688640cd0d074027e9cdae8aabc972c784c5c268bc43c23bd475
                          • MD5 SHA1 SHA512 TLSH

                          YNKfqdW7csCX.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\YNKfqdW7csCX.bat
                          • Size 209B
                          • SHA256 3573a26cb8cbe4c8b267b689bcdc8b68a245deaa4a14df8773c00cc1ed3a3cf7
                          • MD5 SHA1 SHA512 TLSH

                          ZgSBylc5KUJZ.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\ZgSBylc5KUJZ.bat
                          • Size 209B
                          • SHA256 86e2ecf300d3834cc6ad52f98900ab03de0acf7ed333b9a0544c5a0bc6f9fc84
                          • MD5 SHA1 SHA512 TLSH

                          axo2N6VkzEnC.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\axo2N6VkzEnC.bat
                          • Size 209B
                          • SHA256 34299722e0ca028f5ea73d526c7587fb40bc8a3556a2268bf4f877da81c6cb03
                          • MD5 SHA1 SHA512 TLSH

                          cKDseLzNv7JV.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\cKDseLzNv7JV.bat
                          • Size 209B
                          • SHA256 4b01253d7cb5bd20b778ebeef234dc916ae3177b532b871879b77c0df20a755b
                          • MD5 SHA1 SHA512 TLSH

                          lNMu70PD7RZv.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\lNMu70PD7RZv.bat
                          • Size 209B
                          • SHA256 5e59700cc36431b8f53a7f0cc360186404fed6870d1bbab2673ad82aa272204d
                          • MD5 SHA1 SHA512 TLSH

                          mp363taA7Akw.bat

                          • Path C:\Users\Admin\AppData\Local\Temp\mp363taA7Akw.bat
                          • Size 209B
                          • SHA256 c805d32feaf361caea40a2a2e65a365eba0de61e18653c6406f32b2138b822f2
                          • MD5 SHA1 SHA512 TLSH

                          molliza.exe

                          • Path C:\Users\Admin\AppData\Roaming\malware\molliza.exe
                          • Size 3.1MB
                          • SHA256 11d1beff4e8cdf50f73298ba1e8cc5127994d2b6bd396196e1f4231aebb66e6c
                          • MD5 SHA1 SHA512 SSDEEP TLSH

                          memory/1200-9-0x0000000002A20000-0x0000000002A30000-memory.dmp

                          memory/1200-11-0x000000001B460000-0x000000001B4B0000-memory.dmp

                          memory/1200-19-0x0000000002830000-0x000000000283C000-memory.dmp

                          memory/1200-12-0x000000001BBD0000-0x000000001BC82000-memory.dmp

                          memory/1684-14-0x0000000002DB0000-0x0000000002DBC000-memory.dmp

                          memory/2288-25-0x0000000000C50000-0x0000000000C5C000-memory.dmp

                          memory/2400-34-0x00000000018A0000-0x00000000018AC000-memory.dmp

                          memory/2400-39-0x00000000018A0000-0x00000000018AC000-memory.dmp

                          memory/2512-51-0x00000000015A0000-0x00000000015AC000-memory.dmp

                          memory/2720-69-0x0000000001050000-0x000000000105C000-memory.dmp

                          memory/2848-31-0x00000000017F0000-0x00000000017FC000-memory.dmp

                          memory/4348-45-0x0000000000E70000-0x0000000000E7C000-memory.dmp

                          memory/4704-63-0x0000000001B50000-0x0000000001B5C000-memory.dmp

                          memory/5428-0-0x00000000003C0000-0x00000000006E4000-memory.dmp

                          memory/5428-8-0x0000000000E80000-0x0000000000E8C000-memory.dmp

                          memory/5428-1-0x000000001B440000-0x000000001B450000-memory.dmp

                          memory/5660-57-0x0000000001730000-0x000000000173C000-memory.dmp