Analysis

  • max time kernel
    5s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2024 13:26

General

  • Target

    eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49N.exe

  • Size

    2.0MB

  • MD5

    22dcf13c8c7773b9f71214f165cd4fe0

  • SHA1

    bcbaf372629a11b3e986d0953d94b80a91124f50

  • SHA256

    eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49

  • SHA512

    d66efdd83bb4517a9fee2a70f3aa23f498acd3b249feaa81bf00f0346bce5c9b31dfe566bdfba84cefc7cc8d721d0858374117c1f03966a9783d02bf05a1e871

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY+:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y4

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 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 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 9 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49N.exe
    "C:\Users\Admin\AppData\Local\Temp\eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49N.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:1772
    • 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:3400
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3400 -s 556
          3⤵
          • Program crash
          PID:1004
      • 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:540
        • 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:2548
        • 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:2852
          • 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:2104
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Iuhx1Jui1HjX.bat" "
            4⤵
              PID:4976
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1868
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1540
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:2840
                    • 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:4844
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2852 -s 1748
                  4⤵
                  • Program crash
                  PID:2928
            • C:\Users\Admin\AppData\Local\Temp\eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49N.exe
              "C:\Users\Admin\AppData\Local\Temp\eeec820df52d72538a05989c3371c74a02622ee6da11bffefd5aef456d719e49N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:740
            • 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:4976
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3400 -ip 3400
            1⤵
              PID:5060
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              1⤵
              • Checks computer location settings
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:336
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                2⤵
                • Executes dropped EXE
                PID:2880
                • 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 2880 -s 520
                    3⤵
                    • Program crash
                    PID:2720
                • C:\Users\Admin\AppData\Local\Temp\windef.exe
                  "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                  2⤵
                    PID:4636
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                    2⤵
                      PID:2336
                    • 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:4184
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2880 -ip 2880
                    1⤵
                      PID:2828
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2852 -ip 2852
                      1⤵
                        PID:1932
                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                        1⤵
                          PID:3596

                        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\Iuhx1Jui1HjX.bat

                          Filesize

                          208B

                          MD5

                          2c5b72a9def0df50d1c50a5a9780e603

                          SHA1

                          90e12113ee8bab86033a52939ef89baa5ea0a7e3

                          SHA256

                          7f7f20102628755bf2191bade21d496717023e31c6812bca0a307ee70b99aee1

                          SHA512

                          2582b4fca7d5e85ecb7b64dcc89c2c96ab70603b970d0c2e9dc620c05c8d606dcdf7268e5fe538ac89b9f398b7bed42df36a9a5aeb6fce951c2c758272c0b12c

                        • 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\10-17-2024

                          Filesize

                          224B

                          MD5

                          83c628a81e734f1771fcb6805abf559d

                          SHA1

                          2eeb372093d607ba96012759a540643c4edff027

                          SHA256

                          6b849536765e90f2209d09516e3adaa9e8a6b8f312ba5643228de7e1e5e25324

                          SHA512

                          96edbb0fc41764f047590aaef905c9ca36974357e2c9cd8c1ea30fca905a5b9da57f31adb9a565f362e4a92a88dc4772c7943266a9d8c9d3a81d4552601e33f8

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

                          Filesize

                          2.0MB

                          MD5

                          55142b9d0b050b53985ff94e9ea7415c

                          SHA1

                          90ec08a3ca1a7544be5e98702c40a902ec38bb8a

                          SHA256

                          5e3604fc0c2ebd7e21d6c7a1696bfc371fb2c37471647dca947273e5556158ea

                          SHA512

                          cfb3c3ae285af1d325e28195729e6753408a9e54de1b8292571104e5b7acb08ce8ab786a4f60c4a76cbca4922c3170f63965f4eca0c5b7bfc3179401f3438041

                        • memory/540-34-0x0000000004AB0000-0x0000000004B16000-memory.dmp

                          Filesize

                          408KB

                        • memory/540-33-0x0000000004BD0000-0x0000000004C62000-memory.dmp

                          Filesize

                          584KB

                        • memory/540-32-0x0000000005180000-0x0000000005724000-memory.dmp

                          Filesize

                          5.6MB

                        • memory/540-35-0x00000000050D0000-0x00000000050E2000-memory.dmp

                          Filesize

                          72KB

                        • memory/540-36-0x0000000005CD0000-0x0000000005D0C000-memory.dmp

                          Filesize

                          240KB

                        • memory/540-31-0x0000000000010000-0x000000000006E000-memory.dmp

                          Filesize

                          376KB

                        • memory/740-28-0x0000000000180000-0x00000000001A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/740-20-0x0000000000180000-0x00000000001A0000-memory.dmp

                          Filesize

                          128KB

                        • memory/1772-18-0x0000000004380000-0x0000000004381000-memory.dmp

                          Filesize

                          4KB

                        • memory/2336-66-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/2336-72-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/2852-44-0x0000000006300000-0x000000000630A000-memory.dmp

                          Filesize

                          40KB