Analysis

  • max time kernel
    5s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-08-2024 20:21

General

  • Target

    3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe

  • Size

    2.0MB

  • MD5

    8ba184c3c80118a9770926647dc8a657

  • SHA1

    35b7cbe031ee425be4db9aee67369224eb79b5b9

  • SHA256

    3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af

  • SHA512

    06f691246473857df2c289443dfb74a2588de21f69b2aed53bdf734a06bf85c093eee671a03a622821732b152726929b3a397d9bb49baf12ae254616a0435789

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYW:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YY

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 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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 WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe
    "C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.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:4308
    • 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:1232
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4540
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 552
          3⤵
          • Program crash
          PID:3392
      • 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:3492
        • 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
          PID:5112
          • 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:3604
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1pxVeYaFKYoB.bat" "
            4⤵
              PID:4552
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1556
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:392
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:4444
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 5112 -s 2264
                  4⤵
                  • Program crash
                  PID:4524
            • C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe
              "C:\Users\Admin\AppData\Local\Temp\3f5369b0d9be4e77516715f95919b214eec9eb24ca3c971bd0f5899a5da900af.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2788
            • 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:648
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1232 -ip 1232
            1⤵
              PID:1804
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 5112 -ip 5112
              1⤵
                PID:3152
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:4596
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4880
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:3836
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 520
                          3⤵
                          • Program crash
                          PID:2488
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:804
                          • 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:1504
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:60
                              • 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:4592
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:5012
                            • 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:3084
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4880 -ip 4880
                            1⤵
                              PID:4332
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:4424
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:3772

                                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\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                  Filesize

                                  701B

                                  MD5

                                  5de8527438c860bfa3140dc420a03e52

                                  SHA1

                                  235af682986b3292f20d8d71a8671353f5d6e16d

                                  SHA256

                                  d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                  SHA512

                                  77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                • C:\Users\Admin\AppData\Local\Temp\1pxVeYaFKYoB.bat

                                  Filesize

                                  208B

                                  MD5

                                  7a5921993d79009595f4430589208cad

                                  SHA1

                                  34020e5e64585ea9982f8922adbf79af25a913db

                                  SHA256

                                  4168b50e78f5c191610342ca48a10f9e7352cfc78dcc19c7a84e3b61b76f646a

                                  SHA512

                                  889c39f8896da1f85c7c71fb8193517da9cefe78affe0ca19044da9fbbe813444802055283d8eec2fe89e6462c71a144450760f01f9dd86a87fc5c3c84f9cb4c

                                • 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\08-23-2024

                                  Filesize

                                  224B

                                  MD5

                                  c1724792c67e409ce7bfe92412e2cc51

                                  SHA1

                                  c916bd5dbd47c478b5c09057da7c8a219f4ab805

                                  SHA256

                                  fd30dfb5b1aa9a5a7408c66c1488f0227bf8786a6e43a0334106b7eb7f5e1615

                                  SHA512

                                  cb630e6ec3ffd98478b0dfa4e89288fc176d08f08bd41bccebc227e07e8a4c5940ae4ec919bf1cca552d24a624ab4872c6babd6bb1e163ad0b1830b704f7a5a2

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  f128851a7d4d99749746c7c8bbce1d62

                                  SHA1

                                  24b8105c5319e36bbedeeaca8621e333500284bf

                                  SHA256

                                  1b743f263489436e1975d4414f63fd5e6cecda32e5e344de4f8e27933e9a0ad8

                                  SHA512

                                  7f9b71df7298bf35d1c1ba1a586195744f942ad2df6355dcd800b5c01be22fec1b7754287ca56c50f19a81368e51cd521b214a847a8dcddc66300951c4387dd1

                                • memory/2788-20-0x0000000000700000-0x0000000000720000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2788-28-0x0000000000700000-0x0000000000720000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3492-29-0x000000007337E000-0x000000007337F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/3492-36-0x0000000005FA0000-0x0000000005FB2000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/3492-37-0x00000000064E0000-0x000000000651C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/3492-35-0x0000000005360000-0x00000000053C6000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/3492-34-0x00000000052C0000-0x0000000005352000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/3492-33-0x00000000057D0000-0x0000000005D74000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/3492-32-0x0000000000960000-0x00000000009BE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/4308-19-0x0000000003E30000-0x0000000003E31000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/5012-71-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/5012-77-0x0000000000400000-0x0000000000420000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/5112-45-0x0000000006EB0000-0x0000000006EBA000-memory.dmp

                                  Filesize

                                  40KB