Resubmissions

14-08-2024 06:06

240814-gtrf8sxgpe 10

14-08-2024 06:00

240814-gqmnwaxglc 10

Analysis

  • max time kernel
    5s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 06:00

General

  • Target

    e83ed2446c4dcaea4dee212911c60040N.exe

  • Size

    2.0MB

  • MD5

    e83ed2446c4dcaea4dee212911c60040

  • SHA1

    939997535659c10cbf9aee8203466745475a1b69

  • SHA256

    9a227f47f09d34808e5ccf5856bf8900ae72fdc777d1d9e51de3d3a9ada0ef25

  • SHA512

    51b6d85dc84bf0f9df1f63f2e1ea76806fc4c7b9d96e928645d485bcc7b369fb4a7d49d7cccb286b4c483b3ae1ac8a6ab14a25503a2615059134a84c362aa9ff

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYr:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y9

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\e83ed2446c4dcaea4dee212911c60040N.exe
    "C:\Users\Admin\AppData\Local\Temp\e83ed2446c4dcaea4dee212911c60040N.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:2816
    • 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:3868
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 548
          3⤵
          • Program crash
          PID:4456
      • 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:4276
        • 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:1524
        • 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:4868
          • 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:4984
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2csBhJ7PE440.bat" "
            4⤵
              PID:664
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2132
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:4732
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1512
                    • 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:1516
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\L5c2Rl1k0AqZ.bat" "
                      6⤵
                        PID:4396
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4340
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2368
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 2204
                          6⤵
                          • Program crash
                          PID:4908
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 2220
                      4⤵
                      • Program crash
                      PID:544
                • C:\Users\Admin\AppData\Local\Temp\e83ed2446c4dcaea4dee212911c60040N.exe
                  "C:\Users\Admin\AppData\Local\Temp\e83ed2446c4dcaea4dee212911c60040N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:1880
                • 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 408 -p 3868 -ip 3868
                1⤵
                  PID:1540
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:3952
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:460
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:3596
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 460 -s 520
                            3⤵
                            • Program crash
                            PID:628
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:3384
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:708
                            • 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:1480
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 460 -ip 460
                            1⤵
                              PID:3984
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4868 -ip 4868
                              1⤵
                                PID:3736
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1512 -ip 1512
                                1⤵
                                  PID:2676
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:5024

                                  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\2csBhJ7PE440.bat

                                    Filesize

                                    208B

                                    MD5

                                    4cf3f154f9aa3423c5abd813dca84d63

                                    SHA1

                                    19031898765b0157011c7845ae78d875068b8a35

                                    SHA256

                                    673368743194d844385486afa664b886736fdc72c5f0aaf572b6682c21561210

                                    SHA512

                                    f3b8d2f689cefae031621ad170db953cf1b67f0f3d887f8e3d3a77d26cf2d13ecd444f2d08e8520e5fe52b75a93198598c683b3e3d44d536d3b2dc8a28c9cfd4

                                  • C:\Users\Admin\AppData\Local\Temp\L5c2Rl1k0AqZ.bat

                                    Filesize

                                    208B

                                    MD5

                                    5d7fc7abe8997969a10004b830adeac3

                                    SHA1

                                    410311f95c6ca16a15786459f7f058b5889ff52b

                                    SHA256

                                    46c51341c9c15438e53cad3d09441e9ad91655774982fbe00c76ea20124104ef

                                    SHA512

                                    8e60a9b42f649080148bd8898ed5c1e408af0f96e48238b39bc1930647a2328de6cc413f0cf813cae6b65714ff7ac436b2d8f9073ff9dfa25ddc0f5c9b1648a7

                                  • 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\08-14-2024

                                    Filesize

                                    224B

                                    MD5

                                    abda5a5f3295c5adb04aa2da6a6b7482

                                    SHA1

                                    23390f52a9325d361ad5799d4bf5dbb8d4c951d7

                                    SHA256

                                    d355dfd4ccc89361d72b004d14afdc9cc1fe5b5c8a0910be04bd0aa36e778ce1

                                    SHA512

                                    fa0613b69d39ab3995e03b1b1d19555c48bc4b0e2d711e09917246972cfeb0cb34e59251e9e1a7fa627c463414449a9c316c3a28cebce71ccc70655f10d031da

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    d84ea4829789e35e1b25e6425a11dc36

                                    SHA1

                                    cb92b729098264b8f9198a853471dafbac5c92aa

                                    SHA256

                                    1a55b2a0d839b04b9ec2972d3f8db12620c0d7fa0a13f1abc75249178e9f6436

                                    SHA512

                                    c1b702f8811668e0621b2a46d605f8f65589662b1c926194207a952f437c89b808b28e11666c36daecef95eb73edb4608169e3e288f5e59047a0f7d24b1d2944

                                  • memory/1880-18-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/1880-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/2816-73-0x00000000039A0000-0x00000000039A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2816-28-0x00000000039A0000-0x00000000039A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4276-34-0x0000000005960000-0x00000000059C6000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/4276-35-0x0000000006560000-0x0000000006572000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/4276-36-0x0000000006AA0000-0x0000000006ADC000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/4276-33-0x0000000005860000-0x00000000058F2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/4276-32-0x0000000005D30000-0x00000000062D4000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/4276-31-0x0000000000F30000-0x0000000000F8E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/4868-44-0x0000000006740000-0x000000000674A000-memory.dmp

                                    Filesize

                                    40KB