Analysis

  • max time kernel
    2s
  • max time network
    61s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 14:52

General

  • Target

    cdc0eaac618227bf99fefd25229fe250.exe

  • Size

    2.0MB

  • MD5

    cdc0eaac618227bf99fefd25229fe250

  • SHA1

    2326aa150bb29285845acf6219a40510bdf26dd4

  • SHA256

    1704fdc6743e97054a09abb8775ef8b66b7d94b91baca207c45e4f284f7858d6

  • SHA512

    4ac660e4c0d8b6a45fe1fe0dda7491f12f799b62bcaa35b98f78812459c84d2dc6997a3f1ea5adc1bf9184215b3454a67dc20741cdf845766ce7c8d6685acde2

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY3:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yt

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 9 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 3 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
  • Creates scheduled task(s) 1 TTPs 4 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdc0eaac618227bf99fefd25229fe250.exe
    "C:\Users\Admin\AppData\Local\Temp\cdc0eaac618227bf99fefd25229fe250.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:2788
    • C:\Users\Admin\AppData\Local\Temp\cdc0eaac618227bf99fefd25229fe250.exe
      "C:\Users\Admin\AppData\Local\Temp\cdc0eaac618227bf99fefd25229fe250.exe"
      2⤵
        PID:2872
      • 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⤵
        • Creates scheduled task(s)
        PID:2616
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        PID:2844
        • 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⤵
          • Creates scheduled task(s)
          PID:2956
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1656
            • 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⤵
              • Creates scheduled task(s)
              PID:808
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1656 -s 1528
              4⤵
              • Program crash
              PID:2120
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\MTCUcfGht9X0.bat" "
              4⤵
                PID:1220
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {E5D2570D-F0B0-4C06-9B21-59F614F51EC5} S-1-5-21-1268429524-3929314613-1992311491-1000:XBTLDBHN\Admin:Interactive:[1]
          1⤵
            PID:1620
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:320
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:2064
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:3028
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2072
                      • 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⤵
                        • Creates scheduled task(s)
                        PID:396
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:2448
                    • C:\Windows\SysWOW64\chcp.com
                      chcp 65001
                      1⤵
                        PID:1532
                      • C:\Windows\SysWOW64\PING.EXE
                        ping -n 10 localhost
                        1⤵
                        • Runs ping.exe
                        PID:2384

                      Network

                      MITRE ATT&CK Matrix ATT&CK v13

                      Execution

                      Scheduled Task/Job

                      1
                      T1053

                      Persistence

                      Scheduled Task/Job

                      1
                      T1053

                      Privilege Escalation

                      Scheduled Task/Job

                      1
                      T1053

                      Discovery

                      Query Registry

                      2
                      T1012

                      Peripheral Device Discovery

                      2
                      T1120

                      System Information Discovery

                      3
                      T1082

                      Remote System Discovery

                      1
                      T1018

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\MTCUcfGht9X0.bat
                        Filesize

                        208B

                        MD5

                        00e73df1275c3cbeef0a4cd9f101bf76

                        SHA1

                        8a4624ce1da5c76338f1f176a9a3a3e603ef2ee0

                        SHA256

                        f40a7cfd9a7e87ca071f6bf265bb9e2ba297d380cd79abe9c8e16428c959596e

                        SHA512

                        8c8c4f76b405af37514092723b5e62ec51a2bd326f15687187fb28f51834e637e31d8b8f2b60540dbec787f0d0d389f286c24dcf2ec952d60e1cfb1b48ee8311

                      • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                        MD5

                        d41d8cd98f00b204e9800998ecf8427e

                        SHA1

                        da39a3ee5e6b4b0d3255bfef95601890afd80709

                        SHA256

                        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                        SHA512

                        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

                        349KB

                        MD5

                        b4a202e03d4135484d0e730173abcc72

                        SHA1

                        01b30014545ea526c15a60931d676f9392ea0c70

                        SHA256

                        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                        SHA512

                        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

                        381KB

                        MD5

                        4c10a3309ce74cc876e15b2c09953646

                        SHA1

                        176edc8a574b0098b2532059fb593f05ec118704

                        SHA256

                        89c748ce30e7df7180955bac8c8cb13b499e41a76437aa0bdce40c3e587ce257

                        SHA512

                        837599aa7d3ce6b1f5931a6595263824e1a8bb9845c432c8a4da49be7c8bce26ea2f2b52ad6ebf94a35cfe7a80579609e89d7275fc364995b07b26a53a381af7

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

                        805KB

                        MD5

                        e5aa9e46eb03604f33b82794aa11b444

                        SHA1

                        5b559f8b9e37cf22570f4967afc47e20aa45ab91

                        SHA256

                        2812f46babdf802bf8705ca05c13e94674454a12fb1e5e5492ce3305c6736e5d

                        SHA512

                        f3bf36425606eef04d094982c28a7605e2573462bd0e15cc2cc08bbc2e960c34cf6098774f989db309161af9d2c6d7cf196edca425e0392e81eb0f7631cd9216

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

                        64KB

                        MD5

                        0043800c211f55e43598bdd84f7ad828

                        SHA1

                        307686fd3e8840c7f638112341b8aeca77fc66d8

                        SHA256

                        a0e29af0db7d23b8471f23654d1bed706ffb08b8d1c71c07be9086e12d70da01

                        SHA512

                        cf90ab709553f4a1586738cc039374724a7c029eda40b7007f045e5013e01926f94f385130261b2c449fa8d115f906cc774d9a8b346604f70c0d5f4d1ebb3edd

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

                        405KB

                        MD5

                        b8ba87ee4c3fc085a2fed0d839aadce1

                        SHA1

                        b3a2e3256406330e8b1779199bb2b9865122d766

                        SHA256

                        4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                        SHA512

                        7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

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

                        98KB

                        MD5

                        31044683e2d9388f52a4e0cf1cfaea16

                        SHA1

                        0cd84629abe33f964f3380ecc2859f0fb00cb231

                        SHA256

                        3f7f86b72edf2f0819050a5fd332e45fa5d97a7fffb14c582aa7f6d789a2c272

                        SHA512

                        82d5338d1de0cbf02718464e8cf8555040b9bbef66392eccb63ae616925a00752b51526a6c7ef2201179202026c274e21bfc1b21d9e5f18bf8dfcdda7697fd32

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

                        59KB

                        MD5

                        c102d335db076b52dff58f1fd270d82a

                        SHA1

                        c11a4d73d2e68d30e77d39f25edbdb96ea6ea932

                        SHA256

                        9739d76798cd0a22972b16b620c9e983aacb1d838fab24d13038d4060de48202

                        SHA512

                        b57854bf77ec7fdb12ac7845e6a8f02e324efe296b84f03f34d65db86d270ce3982813aa79495c1f641bcf3f8b4727801226f331f921d06479121cb52df97750

                      • \Users\Admin\AppData\Roaming\SubDir\winsock.exe
                        Filesize

                        93KB

                        MD5

                        7b3c7a833a10e3c51fb52050f6e16974

                        SHA1

                        3e7fd18e59dfa451dbf3ce1090aeed3b36e59d7e

                        SHA256

                        3f3de79ad4e321390fcdd551e50bd7fe315ead77e5b2f553b3fc1ab74cdc0836

                        SHA512

                        828b0801d03163f73edd7566f5b577553e514368203490bed9c2529a12471e8f06969526ea701b15390772fa8ebbb42cf6af6c3bce1b2f9693ba97dcb5bca9e2

                      • memory/1656-74-0x0000000000E60000-0x0000000000EA0000-memory.dmp
                        Filesize

                        256KB

                      • memory/1656-71-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/1656-66-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/1656-69-0x0000000000E60000-0x0000000000EA0000-memory.dmp
                        Filesize

                        256KB

                      • memory/1656-67-0x0000000000EB0000-0x0000000000F0E000-memory.dmp
                        Filesize

                        376KB

                      • memory/2072-107-0x00000000009D0000-0x0000000000A2E000-memory.dmp
                        Filesize

                        376KB

                      • memory/2072-108-0x0000000004870000-0x00000000048B0000-memory.dmp
                        Filesize

                        256KB

                      • memory/2072-106-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/2072-133-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/2180-29-0x0000000000AB0000-0x0000000000AB1000-memory.dmp
                        Filesize

                        4KB

                      • memory/2448-117-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                        Filesize

                        4KB

                      • memory/2788-50-0x00000000000D0000-0x000000000016C000-memory.dmp
                        Filesize

                        624KB

                      • memory/2788-42-0x00000000000D0000-0x000000000016C000-memory.dmp
                        Filesize

                        624KB

                      • memory/2788-39-0x000007FFFFFD6000-0x000007FFFFFD7000-memory.dmp
                        Filesize

                        4KB

                      • memory/2788-56-0x00000000000D0000-0x000000000016C000-memory.dmp
                        Filesize

                        624KB

                      • memory/2788-36-0x0000000000020000-0x0000000000021000-memory.dmp
                        Filesize

                        4KB

                      • memory/2788-57-0x0000000000020000-0x0000000000021000-memory.dmp
                        Filesize

                        4KB

                      • memory/2844-58-0x0000000000B40000-0x0000000000B80000-memory.dmp
                        Filesize

                        256KB

                      • memory/2844-54-0x0000000000E00000-0x0000000000E5E000-memory.dmp
                        Filesize

                        376KB

                      • memory/2844-55-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/2844-68-0x0000000073EA0000-0x000000007458E000-memory.dmp
                        Filesize

                        6.9MB

                      • memory/2872-51-0x0000000000080000-0x00000000000A0000-memory.dmp
                        Filesize

                        128KB

                      • memory/2872-33-0x0000000000080000-0x00000000000A0000-memory.dmp
                        Filesize

                        128KB

                      • memory/2872-44-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
                        Filesize

                        4KB

                      • memory/2872-31-0x0000000000080000-0x00000000000A0000-memory.dmp
                        Filesize

                        128KB

                      • memory/3028-127-0x0000000000020000-0x0000000000021000-memory.dmp
                        Filesize

                        4KB

                      • memory/3028-132-0x00000000003D0000-0x000000000046C000-memory.dmp
                        Filesize

                        624KB

                      • memory/3028-125-0x000007FFFFFD5000-0x000007FFFFFD6000-memory.dmp
                        Filesize

                        4KB

                      • memory/3028-128-0x00000000003D0000-0x000000000046C000-memory.dmp
                        Filesize

                        624KB