Analysis

  • max time kernel
    5s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-08-2024 18:13

General

  • Target

    adbce.exe

  • Size

    2.0MB

  • MD5

    b26e63bcd9394df3938ee34463e495bb

  • SHA1

    405f3f9da7c1800d0b19959a1ec55ebb9abd7b62

  • SHA256

    c9bff2976429c2bf5aaebb22ff100e6b11f6e60e2bd085463f1fa42a288c6618

  • SHA512

    635b23b951f31563dd138e11e291d396497c28200d81bae8ad365d0c76c123b4b906ddad06e4a5ab9da36f1106cbb607fa20c117fabfc4593aba0db35fe7574b

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYw:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ye

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 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 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 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\adbce.exe
    "C:\Users\Admin\AppData\Local\Temp\adbce.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:4956
    • 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:3536
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 552
          3⤵
          • Program crash
          PID:3936
      • 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:1164
        • 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:5112
        • 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:4024
          • 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:4452
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HYGyBFmPhksR.bat" "
            4⤵
              PID:4156
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4532
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1264
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:5012
                    • 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:3584
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 2244
                  4⤵
                  • Program crash
                  PID:2384
            • C:\Users\Admin\AppData\Local\Temp\adbce.exe
              "C:\Users\Admin\AppData\Local\Temp\adbce.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2508
            • 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:4124
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3536 -ip 3536
            1⤵
              PID:1004
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4024 -ip 4024
              1⤵
                PID:4912
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:1600
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4732
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:4864
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4732 -s 520
                          3⤵
                          • Program crash
                          PID:3840
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:4600
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          2⤵
                            PID:3696
                          • 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:1208
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4732 -ip 4732
                          1⤵
                            PID:5000
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:4344
                              • C:\Windows\explorer.exe
                                explorer.exe /LOADSAVEDWINDOWS
                                2⤵
                                  PID:4776
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:4232
                                • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                  "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                  1⤵
                                    PID:940

                                  Network

                                  MITRE ATT&CK Enterprise v15

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  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\HYGyBFmPhksR.bat

                                    Filesize

                                    208B

                                    MD5

                                    1babfc3bfeaf5c0c0c3d51f1c3d7d8de

                                    SHA1

                                    92d9fd55cab67208838e2ab0641f23da2e964b49

                                    SHA256

                                    0503b467744ec7743ec9021011a0e9ed9424e4330d208c269cf016651c8aa0fa

                                    SHA512

                                    88bcd924456d50cd1f267053e2e82efcc290617ee68288f02aaee207246909c3f0768329d539274f1df36979482b63576599e7d874e2633a6215c66820b9ae0b

                                  • 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\08-29-2024

                                    Filesize

                                    224B

                                    MD5

                                    245efaa874790c6f5eb39aabaca386d4

                                    SHA1

                                    9ec491cce1b28a95ab91c672ab178ba8285df2d5

                                    SHA256

                                    e2e953d3650038077c5e06309b2ca579571a76ae1cb64bfe77c226c263461353

                                    SHA512

                                    6270f66046fd4f49fc16d2ae52ac9e3ebdb359c5c1206aeccdca34814eaa0767c07270f21cfa1091f512ff0960be8854a0b5faee8b14777f33c06c47e1d3bb23

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    eb0ce220379e37365821097e3b29a877

                                    SHA1

                                    06faec055b16558705f75f4ac67d4495facf33fe

                                    SHA256

                                    aea53f71b0c98bdff8545ce898b8b76cb470c52a4d186f587703f13a1118e4aa

                                    SHA512

                                    96f1da86edf9f8f9663b763f9c73ca900ef696277f75a5eb7a18086fccd0ece266d7c8d9d2daf7f65ae4e8d4bf15119feb56a1c751f67707b31c483a542087b5

                                  • memory/1164-30-0x00000000008C0000-0x000000000091E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/1164-33-0x0000000005920000-0x0000000005EC4000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/1164-34-0x0000000005370000-0x0000000005402000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/1164-35-0x0000000005410000-0x0000000005476000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/1164-36-0x0000000006150000-0x0000000006162000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/1164-37-0x0000000006690000-0x00000000066CC000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/1164-29-0x000000007336E000-0x000000007336F000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2508-28-0x0000000000C20000-0x0000000000C40000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/2508-21-0x0000000000C20000-0x0000000000C40000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3696-74-0x0000000000690000-0x00000000006B0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3696-80-0x0000000000690000-0x00000000006B0000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4024-45-0x00000000066F0000-0x00000000066FA000-memory.dmp

                                    Filesize

                                    40KB

                                  • memory/4956-19-0x0000000003C40000-0x0000000003C41000-memory.dmp

                                    Filesize

                                    4KB