Analysis

  • max time kernel
    5s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 10:27

General

  • Target

    8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53N.exe

  • Size

    2.0MB

  • MD5

    823ce78f01bae52d50b618eb7080a500

  • SHA1

    70704cd9faedc08ded14be2604f69bda08b8c2dc

  • SHA256

    8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53

  • SHA512

    76254af974444333a1c3d024d4b2bd496e5734856ed3d01bff336b552095b630a4d6d706ce0cd7497a8112975d8dfbc53b0be9d49149ca4131974b4a598abc95

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYh:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YX

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\8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53N.exe
    "C:\Users\Admin\AppData\Local\Temp\8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53N.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:3904
    • 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:4388
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 548
          3⤵
          • Program crash
          PID:116
      • 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:2152
        • 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:4584
        • 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:4188
          • 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:1588
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hog6m99iMLRq.bat" "
            4⤵
              PID:2488
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:452
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4384
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3484
                    • 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:2240
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\E2fA9lRfPiEK.bat" "
                      6⤵
                        PID:3984
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2400
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:3376
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 2192
                          6⤵
                          • Program crash
                          PID:1692
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4188 -s 1992
                      4⤵
                      • Program crash
                      PID:2888
                • C:\Users\Admin\AppData\Local\Temp\8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53N.exe
                  "C:\Users\Admin\AppData\Local\Temp\8dd8bda406084b38aca9b2b0025eaec0a2819f0ba87d7e36cc6d36e5617d0a53N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3492
                • 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:4364
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4388 -ip 4388
                1⤵
                  PID:956
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4528
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:2952
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:2604
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 520
                            3⤵
                            • Program crash
                            PID:3676
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:4896
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:1048
                            • 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:2112
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2952 -ip 2952
                            1⤵
                              PID:2192
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4188 -ip 4188
                              1⤵
                                PID:2572
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3484 -ip 3484
                                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:3228
                                  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                    1⤵
                                      PID:1176

                                    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\E2fA9lRfPiEK.bat

                                      Filesize

                                      208B

                                      MD5

                                      f33d9721948a4210070bc2d9b0e140ac

                                      SHA1

                                      77f41a9f2b1d340248f44140d0c4f8c9ce5d7c72

                                      SHA256

                                      bc97af64df1881c6dbc1d744e4484ead85b42c887821ec3b2e0e9131da72a4fb

                                      SHA512

                                      eb09623939223fc30e9c84adb7cbabdb40186e589fdb049bdbf12b393051ffe16a28d653a6e933627a1b22c24f9400865a79c2f4d4a3247cfb678d4475cf45a7

                                    • C:\Users\Admin\AppData\Local\Temp\hog6m99iMLRq.bat

                                      Filesize

                                      208B

                                      MD5

                                      1741e8d9e29b01382dedbdb88d2e35d2

                                      SHA1

                                      eb3c91ac4b4475cdf6526beffee14978c12b0689

                                      SHA256

                                      45f317f514aac4f3086e2e61482fe057f230ff6d54114a3d4911bab2d9d903c4

                                      SHA512

                                      45e4b5a21852ac392f0c4a2f69ad2aa15e593ade31f98ad0fdee18b7fbc35e9279b244d65844bd1c102fe5f417aaf2150e044d73f563103e4c5b14c5cdee5e7e

                                    • 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\10-02-2024

                                      Filesize

                                      224B

                                      MD5

                                      cb49b7991a0d6c5ee88d5d1389073766

                                      SHA1

                                      db14215c6a68161052074fe7e90d1b92ed6f6351

                                      SHA256

                                      5d9a0cee9717a77c4185ccad1c9548b42098bdd3f359295dca58cc8dc2c446d2

                                      SHA512

                                      0ba03024211b891e362784eff6860eb22559dade1799c57760782cbc42cc5ba96143f328596ec5541178593f053a1869ed6af969ce35bb8aa1439a2a86b1eae8

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

                                      Filesize

                                      2.0MB

                                      MD5

                                      4b78130cb32585d7893e53bf174d59ed

                                      SHA1

                                      aa806eb36a2e0741230147ea9ba374a6156b414c

                                      SHA256

                                      e90cd9cce5be91fdc3ab221ccfe6be661a09e106a5e604505818af31e5aed28f

                                      SHA512

                                      dc31f277d93d9cbd90c546f492afe9863067b6add4c28ec159e0cb2a36ba952d8f64f2d32a70654d432dc399deca670e7353b2cc77a7c4bd96b9c8e7c15244c1

                                    • memory/1048-72-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/1048-66-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/2152-34-0x00000000054E0000-0x0000000005546000-memory.dmp

                                      Filesize

                                      408KB

                                    • memory/2152-36-0x0000000006600000-0x000000000663C000-memory.dmp

                                      Filesize

                                      240KB

                                    • memory/2152-35-0x0000000005910000-0x0000000005922000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2152-33-0x0000000005440000-0x00000000054D2000-memory.dmp

                                      Filesize

                                      584KB

                                    • memory/2152-32-0x0000000005950000-0x0000000005EF4000-memory.dmp

                                      Filesize

                                      5.6MB

                                    • memory/2152-31-0x0000000000A90000-0x0000000000AEE000-memory.dmp

                                      Filesize

                                      376KB

                                    • memory/3492-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3492-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                      Filesize

                                      128KB

                                    • memory/3904-18-0x0000000003550000-0x0000000003551000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/4188-44-0x00000000066E0000-0x00000000066EA000-memory.dmp

                                      Filesize

                                      40KB