Analysis

  • max time kernel
    1s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    14-08-2024 12:21

General

  • Target

    5d724948463d002a09e94a8f4564d210N.exe

  • Size

    2.0MB

  • MD5

    5d724948463d002a09e94a8f4564d210

  • SHA1

    6170a04a2da21e89feb1ab24c966905e39c8b4b8

  • SHA256

    da20cf60bb04e3834e01f52d4b906d9664b629da1e73e0d523ce1a32e21742ac

  • SHA512

    6ea879fcea62126f1a782162b127f5bc4cac554517a926fa18ea90de3eab7eb82e0d4959b2107337f06441b023b2e04ff7e8f0f333f9cbbd29d5e6d06ea50e50

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYV:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YL

Malware Config

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

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

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 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 22 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d724948463d002a09e94a8f4564d210N.exe
    "C:\Users\Admin\AppData\Local\Temp\5d724948463d002a09e94a8f4564d210N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2672
    • 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 behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 180
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2696
      • 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
        PID:2728
        • 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:1712
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:2036
            • 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:984
        • C:\Users\Admin\AppData\Local\Temp\5d724948463d002a09e94a8f4564d210N.exe
          "C:\Users\Admin\AppData\Local\Temp\5d724948463d002a09e94a8f4564d210N.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:2584
        • 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:2968
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {D8274BAC-623B-4547-B2EC-D529B4A718C2} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
        1⤵
          PID:1752
          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
            2⤵
              PID:380
              • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                3⤵
                  PID:2892
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k
                    4⤵
                      PID:1416
                  • C:\Users\Admin\AppData\Local\Temp\windef.exe
                    "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                    3⤵
                      PID:876
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                      3⤵
                        PID:2284
                      • 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
                        3⤵
                        • Scheduled Task/Job: Scheduled Task
                        PID:1624

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\windef.exe

                    Filesize

                    349KB

                    MD5

                    b4a202e03d4135484d0e730173abcc72

                    SHA1

                    01b30014545ea526c15a60931d676f9392ea0c70

                    SHA256

                    7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                    SHA512

                    632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\KTEUWDRF.txt

                    Filesize

                    211B

                    MD5

                    f873fb8051c385f05854b589e77d2f2e

                    SHA1

                    5e8410d227f34cdd35e33259c9e12d9d1ef5f1ec

                    SHA256

                    66a60b97d3158e54c4548952d88b8a4176a1f7fc217f954f6a43799f071d93f0

                    SHA512

                    05401a65a02a58aa2dc6f7f2b5baec30d8740e00636e4fb590f9adac7871655b84674acee13590e9675d099beb09c5e25dc251360146f66ffddd34d626bc7e2d

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

                    Filesize

                    2.0MB

                    MD5

                    609b4d2b1a712b053b6b29ae1bc27323

                    SHA1

                    68e1f90d618cd5d79ef6c163208be16c524ac38e

                    SHA256

                    a4aea5f407c1132720f48dfb34d8e72c20f52e39330b1296443e292cecfbff2a

                    SHA512

                    26ec7e6b8568e6145f9e18f01e909db45bcf08e402059e857fa29e249f48b5206bb659c1d73977678a15187c83e33e9efc3cfb0f634252db276fff1a04d14387

                  • \Users\Admin\AppData\Local\Temp\vnc.exe

                    Filesize

                    405KB

                    MD5

                    b8ba87ee4c3fc085a2fed0d839aadce1

                    SHA1

                    b3a2e3256406330e8b1779199bb2b9865122d766

                    SHA256

                    4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                    SHA512

                    7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                  • memory/876-94-0x0000000000ED0000-0x0000000000F2E000-memory.dmp

                    Filesize

                    376KB

                  • memory/876-94-0x0000000000ED0000-0x0000000000F2E000-memory.dmp

                    Filesize

                    376KB

                  • memory/1416-78-0x00000000003F0000-0x000000000048C000-memory.dmp

                    Filesize

                    624KB

                  • memory/1416-73-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                    Filesize

                    4KB

                  • memory/1416-71-0x0000000000020000-0x0000000000021000-memory.dmp

                    Filesize

                    4KB

                  • memory/1416-74-0x00000000003F0000-0x000000000048C000-memory.dmp

                    Filesize

                    624KB

                  • memory/1416-73-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                    Filesize

                    4KB

                  • memory/1416-71-0x0000000000020000-0x0000000000021000-memory.dmp

                    Filesize

                    4KB

                  • memory/1416-74-0x00000000003F0000-0x000000000048C000-memory.dmp

                    Filesize

                    624KB

                  • memory/1416-78-0x00000000003F0000-0x000000000048C000-memory.dmp

                    Filesize

                    624KB

                  • memory/2036-61-0x00000000010F0000-0x000000000114E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2036-61-0x00000000010F0000-0x000000000114E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2284-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2284-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2584-45-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2584-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2584-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2584-33-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2584-41-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2584-35-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2584-45-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2584-35-0x0000000000080000-0x00000000000A0000-memory.dmp

                    Filesize

                    128KB

                  • memory/2672-32-0x0000000002790000-0x0000000002791000-memory.dmp

                    Filesize

                    4KB

                  • memory/2672-32-0x0000000002790000-0x0000000002791000-memory.dmp

                    Filesize

                    4KB

                  • memory/2728-30-0x00000000741DE000-0x00000000741DF000-memory.dmp

                    Filesize

                    4KB

                  • memory/2728-31-0x00000000003C0000-0x000000000041E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2728-31-0x00000000003C0000-0x000000000041E000-memory.dmp

                    Filesize

                    376KB

                  • memory/2728-30-0x00000000741DE000-0x00000000741DF000-memory.dmp

                    Filesize

                    4KB