Analysis

  • max time kernel
    5s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 06:56

General

  • Target

    d49f6b5934ea87235d0995d0f084d230N.exe

  • Size

    2.0MB

  • MD5

    d49f6b5934ea87235d0995d0f084d230

  • SHA1

    047bf968da71f6eaba87928a24f7c63c1fac4983

  • SHA256

    4b80864d40dba204deda2a061aa44356f52237ebfedfc7b105ba8a178a107b0f

  • SHA512

    4f9ad2324bfa84683de8f29fb7c0a04062286395d4c0a4415a39217f16f2430a03bc42b75e2809168764e1e8245149e389202267f4f83f7f1236d8f0e7af2f23

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYX:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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 3 IoCs

    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 2 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\d49f6b5934ea87235d0995d0f084d230N.exe
    "C:\Users\Admin\AppData\Local\Temp\d49f6b5934ea87235d0995d0f084d230N.exe"
    1⤵
    • Quasar RAT
    • 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:836
    • 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:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 544
          3⤵
          • Program crash
          PID:4640
      • 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:3944
        • 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:4076
        • 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:3052
          • 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:1748
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tibZIPUCvpQu.bat" "
            4⤵
              PID:512
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:4796
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:3532
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:1464
                    • 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:2972
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\nW5mtLPxd6Ne.bat" "
                      6⤵
                        PID:1172
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:4880
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • System Network Configuration Discovery: Internet Connection Discovery
                            • Runs ping.exe
                            PID:2296
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            7⤵
                              PID:1028
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 2264
                            6⤵
                            • Program crash
                            PID:2372
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 2012
                        4⤵
                        • Program crash
                        PID:3280
                  • C:\Users\Admin\AppData\Local\Temp\d49f6b5934ea87235d0995d0f084d230N.exe
                    "C:\Users\Admin\AppData\Local\Temp\d49f6b5934ea87235d0995d0f084d230N.exe"
                    2⤵
                    • System Location Discovery: System Language Discovery
                    PID:5072
                  • 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:2952
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 876 -ip 876
                  1⤵
                    PID:1876
                  • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                    1⤵
                      PID:1520
                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                        2⤵
                          PID:4508
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k
                            3⤵
                              PID:3704
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 520
                              3⤵
                              • Program crash
                              PID:2352
                          • C:\Users\Admin\AppData\Local\Temp\windef.exe
                            "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                            2⤵
                              PID:1912
                            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                              "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                              2⤵
                                PID:4056
                              • 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:1636
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4508 -ip 4508
                              1⤵
                                PID:4316
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3052 -ip 3052
                                1⤵
                                  PID:628
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1464 -ip 1464
                                  1⤵
                                    PID:2884
                                  • C:\Windows\system32\dwm.exe
                                    "dwm.exe"
                                    1⤵
                                      PID:4292
                                    • C:\Windows\system32\dwm.exe
                                      "dwm.exe"
                                      1⤵
                                        PID:2176
                                      • C:\Windows\system32\dwm.exe
                                        "dwm.exe"
                                        1⤵
                                          PID:4824
                                        • C:\Windows\system32\dwm.exe
                                          "dwm.exe"
                                          1⤵
                                            PID:4860
                                          • C:\Windows\system32\dwm.exe
                                            "dwm.exe"
                                            1⤵
                                              PID:2188
                                            • C:\Windows\system32\dwm.exe
                                              "dwm.exe"
                                              1⤵
                                                PID:3840
                                              • C:\Windows\system32\dwm.exe
                                                "dwm.exe"
                                                1⤵
                                                  PID:5092
                                                • C:\Windows\system32\dwm.exe
                                                  "dwm.exe"
                                                  1⤵
                                                    PID:868
                                                  • C:\Windows\system32\AUDIODG.EXE
                                                    C:\Windows\system32\AUDIODG.EXE 0x470 0x33c
                                                    1⤵
                                                      PID:1528
                                                    • C:\Windows\system32\sihost.exe
                                                      sihost.exe
                                                      1⤵
                                                        PID:3308
                                                      • C:\Windows\system32\sihost.exe
                                                        sihost.exe
                                                        1⤵
                                                          PID:1480
                                                        • C:\Windows\system32\sihost.exe
                                                          sihost.exe
                                                          1⤵
                                                            PID:4508
                                                          • C:\Windows\system32\sihost.exe
                                                            sihost.exe
                                                            1⤵
                                                              PID:4524
                                                            • C:\Windows\system32\sihost.exe
                                                              sihost.exe
                                                              1⤵
                                                                PID:4404
                                                              • C:\Windows\system32\sihost.exe
                                                                sihost.exe
                                                                1⤵
                                                                  PID:1220

                                                                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\nW5mtLPxd6Ne.bat

                                                                  Filesize

                                                                  208B

                                                                  MD5

                                                                  5d4903642a7f0e6a9d16a10e59ab63b3

                                                                  SHA1

                                                                  ab5d75777b4d3cd5cdcad952b402979ad3555cf6

                                                                  SHA256

                                                                  dccc029181e79a3901e5e06a6c92c1f82fb607c30c30dc1affd7a7c99a8415f2

                                                                  SHA512

                                                                  d8e17d54d2e9776c99360379e4469461c37ad30af54ff51d54cccc75edaf957b1a79c267c511c2c7c8068ec0336931926da08c75cb4cc61c629ef8d77830c003

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

                                                                  Filesize

                                                                  208B

                                                                  MD5

                                                                  df249c420824494a78b89f6aed8b4d12

                                                                  SHA1

                                                                  771bbab5aea1992e5754689846011ef60aedc276

                                                                  SHA256

                                                                  333ddacc3e10078aeb58f22dba924965b143e303e88e94968548c9d30a0d0c56

                                                                  SHA512

                                                                  5622807306ae33ed19cdde09d934a1a08708e064bd156f27b733c7cf6c3c98f81e9a69de8d7c51a756fc54244b8ecfbb9dac18c8bed23011fb6334895b800bec

                                                                • 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\08-20-2024

                                                                  Filesize

                                                                  224B

                                                                  MD5

                                                                  ef54c9b42fbd66fe496c646dbedcc266

                                                                  SHA1

                                                                  59c45214b0a412348c157c24ea257612ba6fe5ba

                                                                  SHA256

                                                                  19b897f2a373587d2ac3f7f4392044bb2ea6e6b6b42eac98600e35f78e69688d

                                                                  SHA512

                                                                  9628194e2a6bf8d935545489f364fc122f4f376840fb79000fe1fdc3d5171cefd5dda83e9a68ac35868c8bf8bfb24031c0ca7f35f7dadd8216f83270047bad55

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

                                                                  Filesize

                                                                  2.0MB

                                                                  MD5

                                                                  d26b33088958cb0b5e0bbd3a6993cd34

                                                                  SHA1

                                                                  dc349cfc7f15e33e45d0f2c2e4c555238197ed4c

                                                                  SHA256

                                                                  4c9313ddbfb0df5b6bbe83345ee727f6ee257bc5c177612c70b685cc669bce60

                                                                  SHA512

                                                                  1f2dd4e59791194959ef64d6ca792c1a43cd569a580ebd487286f311c0be8b434224143ca70f92c48f8321e7a25cbc318222217c39e1338517e24f9c995b4cf8

                                                                • memory/836-19-0x0000000004580000-0x0000000004581000-memory.dmp

                                                                  Filesize

                                                                  4KB

                                                                • memory/3052-44-0x0000000006590000-0x000000000659A000-memory.dmp

                                                                  Filesize

                                                                  40KB

                                                                • memory/3944-34-0x0000000004C10000-0x0000000004C76000-memory.dmp

                                                                  Filesize

                                                                  408KB

                                                                • memory/3944-35-0x0000000005850000-0x0000000005862000-memory.dmp

                                                                  Filesize

                                                                  72KB

                                                                • memory/3944-36-0x0000000005D90000-0x0000000005DCC000-memory.dmp

                                                                  Filesize

                                                                  240KB

                                                                • memory/3944-33-0x0000000004B70000-0x0000000004C02000-memory.dmp

                                                                  Filesize

                                                                  584KB

                                                                • memory/3944-32-0x0000000005120000-0x00000000056C4000-memory.dmp

                                                                  Filesize

                                                                  5.6MB

                                                                • memory/3944-31-0x0000000000220000-0x000000000027E000-memory.dmp

                                                                  Filesize

                                                                  376KB

                                                                • memory/5072-28-0x0000000000400000-0x0000000000420000-memory.dmp

                                                                  Filesize

                                                                  128KB

                                                                • memory/5072-20-0x0000000000400000-0x0000000000420000-memory.dmp

                                                                  Filesize

                                                                  128KB