Analysis

  • max time kernel
    3s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    13-08-2024 04:17

General

  • Target

    a29e8c96d383d8ea73bc76414c4f49f0N.exe

  • Size

    2.0MB

  • MD5

    a29e8c96d383d8ea73bc76414c4f49f0

  • SHA1

    ba22da41a64915471d457c7706af3689cd8ce9e8

  • SHA256

    0b52d45bdf0c5162a35f8fe938b906482ed009133a573649d47675e82f1bd9a1

  • SHA512

    2fe5c98b52383c36d6d378385c83b8415b96b40d1a07dd94f1c4a819c55fb37a51cb524fb8d3998bd773a0226913eafb2bf679beb1de9edd03f3ea6848c3552a

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYq:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg

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 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 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.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • Program crash 1 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.

  • 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 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a29e8c96d383d8ea73bc76414c4f49f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\a29e8c96d383d8ea73bc76414c4f49f0N.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:1560
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2764
    • 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:2772
      • 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:532
      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
        3⤵
          PID:2364
          • 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:820
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\vJF2LD2HXKMc.bat" "
            4⤵
              PID:2440
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:2416
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:2372
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:360
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 1528
                  4⤵
                  • Program crash
                  PID:2164
            • C:\Users\Admin\AppData\Local\Temp\a29e8c96d383d8ea73bc76414c4f49f0N.exe
              "C:\Users\Admin\AppData\Local\Temp\a29e8c96d383d8ea73bc76414c4f49f0N.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:2748
            • 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:2796
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6B8B939B-5631-40A7-91E7-20A8C943779E} S-1-5-21-2212144002-1172735686-1556890956-1000:MVFYZPLM\Admin:Interactive:[1]
            1⤵
              PID:1624
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                2⤵
                  PID:2660
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    3⤵
                      PID:1516
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        4⤵
                          PID:2240
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        3⤵
                          PID:2524
                        • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                          "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                          3⤵
                            PID:2588
                          • 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:1712

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\vJF2LD2HXKMc.bat

                        Filesize

                        208B

                        MD5

                        648d6c10049db56631f4b28b3ec074dc

                        SHA1

                        c4c28cf4dbaa326fe9bf3985f0813dfba7ebd6a7

                        SHA256

                        d7755b8c7c60f6f0840a5c542ceb007168936a6e8b4fc6ed196a5b30fd62031f

                        SHA512

                        b46078938fec9fff2a64b955ccdf471b7db892d7636bae8a9720a448e9853e83350634651f8555138136375514c1ec3aead7c06314cdf1e37a029e007f3f124e

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

                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\EGSJKO1A.txt

                        Filesize

                        211B

                        MD5

                        17bf6b8561bb1668877f3c51a40a14c0

                        SHA1

                        3423f73ab411f49b0bb2da3b4c1413405b89f744

                        SHA256

                        a559d9f694fda58ae301694ea99f9d9ba6055ee2e524505d35177beaf00e9624

                        SHA512

                        23ef15243174c8b89a13bbd1ee0f64bee9add9b55029124a39b6c607f605e22007163380c692c69633413c4018df526baa3adfd15864642584dda1cbaac5c465

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

                        Filesize

                        2.0MB

                        MD5

                        d911f14d5b9319716b95d4ba8321b270

                        SHA1

                        7795fecb776585bc18bb22bd4998667ffd45e191

                        SHA256

                        3120c8c109b68e6d4ab8ff278c4ae2cc6034576f6b497b17509e77c3cc293148

                        SHA512

                        7190c4585284f8fb94c4cb75dd792422d272a261b9a2fb1092725a8f56f2e1729aaeac1eff9cd01c2386260f0d3c04e9b8d8f5ca7c5ec11e56779d5a65892a23

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

                        Filesize

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                        Filesize

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                      • memory/1560-33-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2240-103-0x0000000000270000-0x000000000030C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2240-102-0x000007FFFFFDF000-0x000007FFFFFE0000-memory.dmp

                        Filesize

                        4KB

                      • memory/2240-107-0x0000000000270000-0x000000000030C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2364-62-0x0000000000240000-0x000000000029E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2524-120-0x0000000000A40000-0x0000000000A9E000-memory.dmp

                        Filesize

                        376KB

                      • memory/2588-126-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2748-39-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2748-41-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2748-44-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2748-48-0x0000000000080000-0x00000000000A0000-memory.dmp

                        Filesize

                        128KB

                      • memory/2764-46-0x00000000003E0000-0x000000000047C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2764-96-0x00000000003E0000-0x000000000047C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2764-32-0x000007FFFFFDE000-0x000007FFFFFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2764-34-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2764-35-0x00000000003E0000-0x000000000047C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2764-49-0x00000000003E0000-0x000000000047C000-memory.dmp

                        Filesize

                        624KB

                      • memory/2764-30-0x0000000000020000-0x0000000000021000-memory.dmp

                        Filesize

                        4KB

                      • memory/2772-52-0x0000000000030000-0x000000000008E000-memory.dmp

                        Filesize

                        376KB