Analysis

  • max time kernel
    4s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-08-2024 08:57

General

  • Target

    ab89291ecfc5195f50b51d734c26df80N.exe

  • Size

    2.0MB

  • MD5

    ab89291ecfc5195f50b51d734c26df80

  • SHA1

    0a507a8ecbc244f4cf395bcb7e14f2be99d1ac94

  • SHA256

    69f7bd5f0af57636d0f10379abd90956f5f91ee5e0fef813ae7dc12ad3beeb13

  • SHA512

    0f9204a9378669c9094a715b68c0f0fbc78bc3427c59b29c52a00b1926e4c335e8bbf13957327b74d4b9a44efd2f891350e9925e243cd1a38000eab61c87628e

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYH:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yh

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\ab89291ecfc5195f50b51d734c26df80N.exe
    "C:\Users\Admin\AppData\Local\Temp\ab89291ecfc5195f50b51d734c26df80N.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:2440
    • 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:2436
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:1104
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 548
          3⤵
          • Program crash
          PID:1988
      • 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:912
        • 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:1652
        • 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:4448
          • 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:2416
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JHhLO1Ua6eak.bat" "
            4⤵
              PID:1660
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:692
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1892
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3180
                    • 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:1932
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\zVN7FfujHXoN.bat" "
                      6⤵
                        PID:1756
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:3576
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:4056
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3180 -s 2248
                          6⤵
                          • Program crash
                          PID:3932
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 2012
                      4⤵
                      • Program crash
                      PID:4380
                • C:\Users\Admin\AppData\Local\Temp\ab89291ecfc5195f50b51d734c26df80N.exe
                  "C:\Users\Admin\AppData\Local\Temp\ab89291ecfc5195f50b51d734c26df80N.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3816
                • 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:4324
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2436 -ip 2436
                1⤵
                  PID:3900
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4608,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=3264 /prefetch:8
                  1⤵
                    PID:1036
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:3288
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:3180
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:3736
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 3180 -s 520
                              3⤵
                              • Program crash
                              PID:1152
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:2292
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:396
                              • 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:2100
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3180 -ip 3180
                              1⤵
                                PID:4352
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4448 -ip 4448
                                1⤵
                                  PID:2152
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3180 -ip 3180
                                  1⤵
                                    PID:3976

                                  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\JHhLO1Ua6eak.bat

                                    Filesize

                                    208B

                                    MD5

                                    63bb72710b923d6865828a4335b65d06

                                    SHA1

                                    eaeec6a8065abbd789338f88c37f618c85266718

                                    SHA256

                                    e4a5ec108990327a3727f599ce4baea2080232ccce82a307a2ca87e3db35681e

                                    SHA512

                                    0b1aafde7f68001b3c3db26c87897cb2d71600cfde6900e628a4f816cc4c3a4d42c5b2a9341ed1a33ea9aff65c0ec5c76c641bc954b95c9be117693c77a8dd0c

                                  • 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\zVN7FfujHXoN.bat

                                    Filesize

                                    208B

                                    MD5

                                    8c97a14ff965fc4ad5867eb6dbeb0ae7

                                    SHA1

                                    b2669a2efdf5baf626853562a30f06f58d5f08ed

                                    SHA256

                                    bcace8d0eec9a7fb0991f9319e2a42b8cbeabbee688f4ccb9fa6b8aa0a86ebf5

                                    SHA512

                                    9f44b6ab7306fd7f8199e3f110eaf1404e137653682dbfd57f6a33080a176e8bb7dd463feb55dace166264b6c82a4b907af5cd1c595c372c5fa1dba7f201d36c

                                  • C:\Users\Admin\AppData\Roaming\Logs\08-17-2024

                                    Filesize

                                    224B

                                    MD5

                                    be765e9ca5a004dcbdb8f7d7b2c94cab

                                    SHA1

                                    1570de00be29fbc54b7beeb35e32e230badcd134

                                    SHA256

                                    2dcf2e178a33a23d74d3805d9b5b08e329626b159dfbf0360d8252311c2b40d2

                                    SHA512

                                    0a7caae04645e26a25335325d72feab36bd434547f53217c1096ab70a397421768b51e14d6e93e3dc9c034d3ded9757f584e03536adf5be50693c445ecea0b90

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

                                    Filesize

                                    2.0MB

                                    MD5

                                    04a3cb83bf8803bd03ca2f6d5f5d5c6e

                                    SHA1

                                    9fbb594e257d593e9bfc5a054bcc24744b1fe418

                                    SHA256

                                    acff7cfd1a3ff78afa50119e7f5bf4ba9e58dcc8d60bb4eaa6c330515dda7d4b

                                    SHA512

                                    8f2986f782c0fa3ef67b80a7530ea2e29b97d8bf91728107f90cdebc42b8f74c4ca505f9a44d23eac95821895cad7fdf1bf00199fc1bb25c6981d3a5d9c1c49e

                                  • memory/912-30-0x00000000001C0000-0x000000000021E000-memory.dmp

                                    Filesize

                                    376KB

                                  • memory/912-34-0x0000000004B10000-0x0000000004BA2000-memory.dmp

                                    Filesize

                                    584KB

                                  • memory/912-35-0x0000000004BB0000-0x0000000004C16000-memory.dmp

                                    Filesize

                                    408KB

                                  • memory/912-36-0x0000000005800000-0x0000000005812000-memory.dmp

                                    Filesize

                                    72KB

                                  • memory/912-37-0x0000000005D40000-0x0000000005D7C000-memory.dmp

                                    Filesize

                                    240KB

                                  • memory/912-33-0x0000000004FD0000-0x0000000005574000-memory.dmp

                                    Filesize

                                    5.6MB

                                  • memory/912-29-0x0000000072B9E000-0x0000000072B9F000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2440-19-0x0000000001590000-0x0000000001591000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/3816-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/3816-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4448-45-0x0000000006E70000-0x0000000006E7A000-memory.dmp

                                    Filesize

                                    40KB