Analysis

  • max time kernel
    5s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2024 21:32

General

  • Target

    4deea97365847868e6c58e8685e25560N.exe

  • Size

    2.0MB

  • MD5

    4deea97365847868e6c58e8685e25560

  • SHA1

    99975273b7c743e3357b6d24ef98e73460ddd6fc

  • SHA256

    abfa61a03fdc2366fa4f935effc1261f009cde54c8a4b54e3e70eeef6c2dcfaa

  • SHA512

    667644403b68bfe7afc9de121cf1f7d6ba1e703b8157aa873ac37adeb8cc9171f995e2dc912b4abab92ec9aa6c04dfe888273d07f6be9c8aab42236a661993db

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY3:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yd

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4deea97365847868e6c58e8685e25560N.exe
    "C:\Users\Admin\AppData\Local\Temp\4deea97365847868e6c58e8685e25560N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 548
          3⤵
          • Program crash
          PID:3248
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:232
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1112
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4436
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3760
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Qd7qObVd1M0j.bat" "
            4⤵
              PID:4116
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4380
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2164
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:220
                    • C:\Windows\SysWOW64\schtasks.exe
                      "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                      6⤵
                      • Scheduled Task/Job: Scheduled Task
                      PID:1224
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\iuWGatfXMUfr.bat" "
                      6⤵
                        PID:4516
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3908
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:448
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 2000
                          6⤵
                          • Program crash
                          PID:5024
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 2244
                      4⤵
                      • Program crash
                      PID:3448
                • C:\Users\Admin\AppData\Local\Temp\4deea97365847868e6c58e8685e25560N.exe
                  "C:\Users\Admin\AppData\Local\Temp\4deea97365847868e6c58e8685e25560N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:2656
                • C:\Windows\SysWOW64\schtasks.exe
                  "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                  2⤵
                  • System Location Discovery: System Language Discovery
                  • Scheduled Task/Job: Scheduled Task
                  PID:212
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1224 -ip 1224
                1⤵
                  PID:4524
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4436 -ip 4436
                  1⤵
                    PID:4488
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:4752
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:3528
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:4868
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 520
                              3⤵
                              • Program crash
                              PID:3108
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:3872
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4948
                              • C:\Windows\SysWOW64\schtasks.exe
                                "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                                2⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:816
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3528 -ip 3528
                              1⤵
                                PID:1652
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 220 -ip 220
                                1⤵
                                  PID:4380
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:4464
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:4220

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

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

                                      Filesize

                                      1KB

                                      MD5

                                      10eab9c2684febb5327b6976f2047587

                                      SHA1

                                      a12ed54146a7f5c4c580416aecb899549712449e

                                      SHA256

                                      f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                      SHA512

                                      7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                    • C:\Users\Admin\AppData\Local\Temp\Qd7qObVd1M0j.bat

                                      Filesize

                                      208B

                                      MD5

                                      b4b403df220010fda50da84637c8afa9

                                      SHA1

                                      8e124b599484793e2f1225a41634ee119d221318

                                      SHA256

                                      bce2e522eda6ada2474f947b7f7189aeb4e16ac7184e8c7d505e4bc5f11a9b49

                                      SHA512

                                      4443ff934b240edc59310d5f8af222057d1e9fcc21b59574439fea8ed44a93776465f48e28780cc0bdf1eaec77b81e1e053761ecb9a6b7f51136b5c9463f60f9

                                    • C:\Users\Admin\AppData\Local\Temp\iuWGatfXMUfr.bat

                                      Filesize

                                      208B

                                      MD5

                                      82a3fc5c7676d5c84e52b3b9259ac421

                                      SHA1

                                      89a69748e6c9f29ca631efbf022fb882f0d3e6b1

                                      SHA256

                                      ca5f073b09b1cebcfad373ed1d2e3d6923507fa3a00edb90690321b295fb22d0

                                      SHA512

                                      fe1343afd1134751c589cdededf7691cc060beb3cb33f9cc02f00bc2550093b64f573085813582f3d8d4c58b1f5f972600034742f775eb10f6551a365950c289

                                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                      Filesize

                                      405KB

                                      MD5

                                      b8ba87ee4c3fc085a2fed0d839aadce1

                                      SHA1

                                      b3a2e3256406330e8b1779199bb2b9865122d766

                                      SHA256

                                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                      SHA512

                                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                    • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                      Filesize

                                      349KB

                                      MD5

                                      b4a202e03d4135484d0e730173abcc72

                                      SHA1

                                      01b30014545ea526c15a60931d676f9392ea0c70

                                      SHA256

                                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                      SHA512

                                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                    • C:\Users\Admin\AppData\Roaming\Logs\08-25-2024

                                      Filesize

                                      224B

                                      MD5

                                      e0fcddf76801af6587ef8c586cd5603b

                                      SHA1

                                      24c2e86a9165a817ebbe3d5cfc9c9c9c0e7c5c95

                                      SHA256

                                      5ad8d1f137bb0b127ebcbed8c325872434baa3bbeb5a56feb54443e7a255a758

                                      SHA512

                                      19e630d3635fa275b66a88ab8b08fa4882452ffbca90a1ff11c94b8edf1c24fa7f7805564a3f9182be6a3745a12b1390674c1ac9cf68d2595ab1944805d03d3e

                                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                                      Filesize

                                      2.0MB

                                      MD5

                                      2ec030a782dd11b1a21d9131a87697e1

                                      SHA1

                                      a7b436130c82127c0e8c9f3778dbd90c477864d1

                                      SHA256

                                      c17a87ab5ea9bd09b7b90aabe2e94377fd46211827ee82f4070f919c29d88138

                                      SHA512

                                      fea775cbde8297bedc31ea15f2a52754dc641dcf5b1a2b2f3848771cb5d440d959fe5ae9a7ad0af1e84d89d0ffabbeca8118262d323c6501ca4086e6fb31155e

                                    • memory/232-36-0x00000000056A0000-0x00000000056B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/232-34-0x00000000051D0000-0x0000000005262000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/232-35-0x0000000005130000-0x0000000005196000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/232-31-0x00000000056E0000-0x0000000005C84000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/232-37-0x0000000006390000-0x00000000063CC000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/232-30-0x0000000000810000-0x000000000086E000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/232-20-0x000000007395E000-0x000000007395F000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2656-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2656-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4436-45-0x0000000006580000-0x000000000658A000-memory.dmp

                                      Filesize

                                      40KB

                                    • memory/4804-19-0x0000000003B30000-0x0000000003B31000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4948-74-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/4948-80-0x00000000000D0000-0x00000000000F0000-memory.dmp

                                      Filesize

                                      128KB