Analysis

  • max time kernel
    5s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 05:48

General

  • Target

    877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe

  • Size

    2.0MB

  • MD5

    b83b407650a4430de314fab0699bee00

  • SHA1

    daa90ab02e6073469b64ff0ff17aeb6e11cdb6f4

  • SHA256

    877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4

  • SHA512

    4bc00830b9f31f69fe45584b06373527e0941d3a967f76ce681a05fa07b1d1f0ac7ffed1f1a926bdece3c78d6ea5d5f6b02b9ce29e97899afb4c968d850497b6

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YT

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 6 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\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe
    "C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.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:1360
    • 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:1148
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1148 -s 560
          3⤵
          • Program crash
          PID:4532
      • 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:3896
        • 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:4292
        • 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:4720
          • 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:884
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NPYy71mFEbTh.bat" "
            4⤵
              PID:1952
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4456
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1428
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1740
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 2268
                  4⤵
                  • Program crash
                  PID:4524
            • C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe
              "C:\Users\Admin\AppData\Local\Temp\877106f8412be6c602573e6ece4b51e3dd4eaa33030946b9ae785ed9d19933a4.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2872
            • 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:4968
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1148 -ip 1148
            1⤵
              PID:4000
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
                PID:3924
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  2⤵
                    PID:3736
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      3⤵
                        PID:3228
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 520
                        3⤵
                        • Program crash
                        PID:3168
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      2⤵
                        PID:1912
                        • 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⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:4712
                        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                          3⤵
                            PID:3776
                            • 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⤵
                              • Scheduled Task/Job: Scheduled Task
                              PID:4972
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\xULkRjjWve45.bat" "
                              4⤵
                                PID:1544
                                • C:\Windows\SysWOW64\chcp.com
                                  chcp 65001
                                  5⤵
                                    PID:2900
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping -n 10 localhost
                                    5⤵
                                    • System Network Configuration Discovery: Internet Connection Discovery
                                    • Runs ping.exe
                                    PID:3328
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -u -p 3776 -s 2256
                                  4⤵
                                  • Program crash
                                  PID:1012
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4680
                              • 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:1236
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3736 -ip 3736
                              1⤵
                                PID:3164
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4720 -ip 4720
                                1⤵
                                  PID:4520
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3776 -ip 3776
                                  1⤵
                                    PID:1356

                                  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\NPYy71mFEbTh.bat

                                    Filesize

                                    208B

                                    MD5

                                    37d3be0f445287347f495603eb5a75d3

                                    SHA1

                                    2ee855cbcd7f83c88c75f22351e762dd6bf8a07f

                                    SHA256

                                    0267ca429f9ecf4b0b5c51562f9ced86e9a3a06c4bebcde335a3d4299fd5a888

                                    SHA512

                                    c7b0cd2094a7216c2fb6c2bed858996aa7c733d554d8d51fb4380422f5f75f5d3d2383591cf6ab74c53381ae20044e26cd9dc69f9c62993e15d1fb237730e54e

                                  • 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\Local\Temp\xULkRjjWve45.bat

                                    Filesize

                                    208B

                                    MD5

                                    bc13eb8adc3704b3cf08f458e8122c2d

                                    SHA1

                                    650f982a02d370f486b8d1e0fe2504effd1fe3f2

                                    SHA256

                                    8d744efd0e0d3848faa40b8964520efb7dc7bddfd4b8367a593381727fd887fa

                                    SHA512

                                    9a2c351f957769d9f15524bdce73124f751ab1befa3c689de8be513b73496b247e25d3bd566747d882a2379c00bc800b59b3ab9e28346a3c7d6bfcdb4cb8bdff

                                  • C:\Users\Admin\AppData\Roaming\Logs\08-31-2024

                                    Filesize

                                    224B

                                    MD5

                                    7f5348e5f34efdd467a3cf2012cd4a1a

                                    SHA1

                                    103aae3ea148dec5ce658898c6c9bd16ec8fbf03

                                    SHA256

                                    4036a1cccca7dd729e5cc17ea1f33dc018abe87744671261bf97ca1528bb84e6

                                    SHA512

                                    aa7f24c423d690f09515e8e0e9d2dbe6705edd4e941b34ebac1156fcb58a26cea0f6f80d1f6380829c490c52aefc5826c3334884b8f73fa397dc719771482098

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    979da6177270b4cd6ca5e6125db5ca55

                                    SHA1

                                    a8558888e375e2e1aea4b102aff9947ddbc2bf86

                                    SHA256

                                    5c7b57f959e42a2889f5992faec224258069312ffced9fc9eeeffd7b985a82df

                                    SHA512

                                    cc4af097a9477a85400afbd2aa5ffd9a7e37c92d1ba322d32a5e8f5465e6af34a9e7ce9fc55ffdfe9345d6e586e90ab9a35d2fcb25942bbd7bf6da7bac49cf28

                                  • memory/1360-19-0x0000000001840000-0x0000000001841000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2872-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/2872-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3896-34-0x0000000005260000-0x00000000052F2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/3896-37-0x0000000006440000-0x000000000647C000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/3896-36-0x0000000005F00000-0x0000000005F12000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/3896-35-0x0000000005300000-0x0000000005366000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/3896-33-0x0000000005810000-0x0000000005DB4000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/3896-32-0x0000000000780000-0x00000000007DE000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/3896-29-0x0000000072E8E000-0x0000000072E8F000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4720-45-0x0000000006590000-0x000000000659A000-memory.dmp

                                    Filesize

                                    40KB