Analysis

  • max time kernel
    4s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 16:59

General

  • Target

    929b53c7e979bc5d52f61449c3fc0d70N.exe

  • Size

    2.0MB

  • MD5

    929b53c7e979bc5d52f61449c3fc0d70

  • SHA1

    b253671b8966dabf075d33d6b810bc3630adb951

  • SHA256

    744d51fe268787ef57b6979f76c7066f58dacb6aa180708519c39315a87dfc60

  • SHA512

    7c5a29bc1a3b91678289db8ab69840a8cfd4e4b05243224e58c75b9a3fe1c99dd919088efdac905689a1d13df63ddd182aaac7707ddd688a0a38fdd1e19accbd

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYv:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y1

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 2 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 3 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 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 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\929b53c7e979bc5d52f61449c3fc0d70N.exe
    "C:\Users\Admin\AppData\Local\Temp\929b53c7e979bc5d52f61449c3fc0d70N.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:264
    • 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:3772
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:4492
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 552
          3⤵
          • Program crash
          PID:872
      • 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
        PID:2436
        • 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:4420
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:4064
            • 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:4004
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HRf0QjnNdtkT.bat" "
              4⤵
                PID:4124
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:1524
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:644
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:2716
                      • 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:1276
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4064 -s 2216
                    4⤵
                    • Program crash
                    PID:3136
              • C:\Users\Admin\AppData\Local\Temp\929b53c7e979bc5d52f61449c3fc0d70N.exe
                "C:\Users\Admin\AppData\Local\Temp\929b53c7e979bc5d52f61449c3fc0d70N.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:1536
              • 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:1508
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3772 -ip 3772
              1⤵
                PID:3928
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4064 -ip 4064
                1⤵
                  PID:5004
                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                  1⤵
                    PID:4136
                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                      2⤵
                        PID:4260
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k
                          3⤵
                            PID:4188
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 520
                            3⤵
                            • Program crash
                            PID:932
                        • C:\Users\Admin\AppData\Local\Temp\windef.exe
                          "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                          2⤵
                            PID:1052
                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                            "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                            2⤵
                              PID:3320
                            • 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:4016
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 4260 -ip 4260
                            1⤵
                              PID:2160
                            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                              "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                              1⤵
                                PID:3696
                              • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                1⤵
                                  PID:4264

                                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\HRf0QjnNdtkT.bat

                                  Filesize

                                  208B

                                  MD5

                                  e6b7ab557c380d03528b9e82c20babca

                                  SHA1

                                  3d9f55070b130d125e51e83ee30a06b54ea62b97

                                  SHA256

                                  c063bc9e5e1fca9a34b2fcfc84402eb65bc4c86d78c912cd74222050d7cbda77

                                  SHA512

                                  427cca8e2863490f023065fbf58e64394d88ef49decc14cae0dcf922659b0557a811e5a2a78a3b679d0afc05f9ef6db0c3e06204d04ab749013162512c107cb7

                                • 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\09-09-2024

                                  Filesize

                                  224B

                                  MD5

                                  ad6ca0a7746a736e27544e152539d385

                                  SHA1

                                  345e8ba148344d5f89318da2fbc9698c29bb7a4f

                                  SHA256

                                  779068838894d5392c67ab636cb5897549e6f6502e7d29a6b307523ea31eb4e7

                                  SHA512

                                  d586eb4e1a02c861544efe10b2efac733ef46aaf5bfe970ec3543d7ba1b05a5c7a1bf16febe10b68119af6f35a03334617e10bfab2e51a456bbc90ab501e1b11

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

                                  Filesize

                                  2.0MB

                                  MD5

                                  06c04874d6c8fca278f11e68e7eb28bc

                                  SHA1

                                  278f21377dd15284365a932d62bb75e06c141e5b

                                  SHA256

                                  7e251598103abe63d10d28568643955f5586b1f8f3c44deb905fa3a2bb2e8f81

                                  SHA512

                                  268631087f2c67be289cadb5f08027eada4de13ccf5083e18db1600ecd1adfba804aa0c9e6dc4a419915cde228c7d17414e8a77e5ec855a241c3a35ab0e699ec

                                • memory/264-19-0x0000000003600000-0x0000000003601000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1536-28-0x0000000000570000-0x0000000000590000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/1536-20-0x0000000000570000-0x0000000000590000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/2436-29-0x0000000072F6E000-0x0000000072F6F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2436-36-0x0000000006110000-0x0000000006122000-memory.dmp

                                  Filesize

                                  72KB

                                • memory/2436-37-0x0000000072F6E000-0x0000000072F6F000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2436-38-0x0000000006650000-0x000000000668C000-memory.dmp

                                  Filesize

                                  240KB

                                • memory/2436-35-0x0000000005500000-0x0000000005566000-memory.dmp

                                  Filesize

                                  408KB

                                • memory/2436-34-0x0000000005400000-0x0000000005492000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2436-33-0x0000000005900000-0x0000000005EA4000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2436-30-0x0000000000990000-0x00000000009EE000-memory.dmp

                                  Filesize

                                  376KB

                                • memory/3320-73-0x0000000000360000-0x0000000000380000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/3320-79-0x0000000000360000-0x0000000000380000-memory.dmp

                                  Filesize

                                  128KB

                                • memory/4064-46-0x00000000067B0000-0x00000000067BA000-memory.dmp

                                  Filesize

                                  40KB