Analysis

  • max time kernel
    4s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-05-2024 03:59

General

  • Target

    d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc.exe

  • Size

    2.0MB

  • MD5

    31968df85d97756ff9eeb3da19ac28f1

  • SHA1

    c054bccea22fae2ec55569fd0068094ad94c7d04

  • SHA256

    d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc

  • SHA512

    03d98dbc14cff94ca9b449b5f502f1cf9d06b3d7252704f2a150ca19fe76148899136780e216b902444cc2a493c80bf5aecff0ba14ad13c59fe89fd6063faa5f

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYI:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Ye

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
  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects executables containing common artifacts observed in infostealers 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
  • Creates scheduled task(s) 1 TTPs 5 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • 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\d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc.exe
    "C:\Users\Admin\AppData\Local\Temp\d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4824
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 552
          3⤵
          • Program crash
          PID:3400
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2044
        • 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:2816
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1500
          • 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:1680
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\bbBBvmoITpfn.bat" "
            4⤵
              PID:4672
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:548
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:1880
                • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                  "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                  5⤵
                    PID:3656
                    • 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⤵
                      • Creates scheduled task(s)
                      PID:4128
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Mtt6C1nLSXLo.bat" "
                      6⤵
                        PID:3880
                        • C:\Windows\SysWOW64\chcp.com
                          chcp 65001
                          7⤵
                            PID:2136
                          • C:\Windows\SysWOW64\PING.EXE
                            ping -n 10 localhost
                            7⤵
                            • Runs ping.exe
                            PID:4768
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 2212
                          6⤵
                          • Program crash
                          PID:4676
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 2240
                      4⤵
                      • Program crash
                      PID:3880
                • C:\Users\Admin\AppData\Local\Temp\d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc.exe
                  "C:\Users\Admin\AppData\Local\Temp\d6e7d1a0768ed93b202a788aab4319a13c19a18b1897bd77efa726300b05bbbc.exe"
                  2⤵
                    PID:1336
                  • 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⤵
                    • Quasar RAT
                    • Creates scheduled task(s)
                    PID:4160
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 876 -ip 876
                  1⤵
                    PID:1952
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1500 -ip 1500
                    1⤵
                      PID:4264
                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                      1⤵
                        PID:4776
                        • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                          "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                          2⤵
                            PID:764
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k
                              3⤵
                                PID:2600
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 520
                                3⤵
                                • Program crash
                                PID:1020
                            • C:\Users\Admin\AppData\Local\Temp\windef.exe
                              "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                              2⤵
                                PID:4332
                              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                2⤵
                                  PID:1976
                                • 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:4380
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 764 -ip 764
                                1⤵
                                  PID:2316
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3656 -ip 3656
                                  1⤵
                                    PID:1216
                                  • C:\Windows\system32\sihost.exe
                                    sihost.exe
                                    1⤵
                                      PID:636
                                      • C:\Windows\explorer.exe
                                        explorer.exe /LOADSAVEDWINDOWS
                                        2⤵
                                          PID:920
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:3400
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:1172
                                          • C:\Windows\system32\dwm.exe
                                            "dwm.exe"
                                            1⤵
                                              PID:2336

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

                                            Loading Replay Monitor...

                                            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\Mtt6C1nLSXLo.bat

                                              Filesize

                                              208B

                                              MD5

                                              00fd78461b9b6c6f8d937f74b312db05

                                              SHA1

                                              1f3c03354947b60ce6a8b78517170fe351a76cae

                                              SHA256

                                              8ac01ee1b584eee69372475521a7c47ea4f6e6412d4882cd8150f9d0a64afea5

                                              SHA512

                                              c56365d231fc3d9d9447917c8acd85e8ad161c8462c68b840416e5f124b46bf7c651d1f62dcab5abb4191488f5a36159926188d51fdb8fd5657289460c4739cc

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

                                              Filesize

                                              208B

                                              MD5

                                              010aed69d431a59b865b41868e104cef

                                              SHA1

                                              83675923c218f36e4fcbad275a297a56de934bb5

                                              SHA256

                                              86f7edfd455771515c25d4d7e543253e01537b52160aa34cd75002b96556b7fa

                                              SHA512

                                              4ec595d1403e29c145897d1d00d3b5fca2bd30db83464e5814bb8b9985913303d07b28e73c019e8d60126bce2a1775330ef39de53d8cb1ffc42a1ea314168180

                                            • 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\05-03-2024

                                              Filesize

                                              224B

                                              MD5

                                              388f486c2c876738b06664cb9babd1bb

                                              SHA1

                                              7af414d0dfd8b862f7d8ef1d845d045f8372a4ca

                                              SHA256

                                              cf815e222da387ae453489e8ef7b0b2b6590ca82b8d93cbe733c2e820fc87f5c

                                              SHA512

                                              4773904ff5a62e877b2b909ef948fc3cb6918597f65096181bc3ab9301a13a70514e6dc94bc47b7534a2430b07ddb670b4b3e0c2a78974181059869ad08b90d4

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

                                              Filesize

                                              2.0MB

                                              MD5

                                              4141cd566c4b174a16445da77931fbdc

                                              SHA1

                                              7e13ecb7cb3680c8cfcc9e6cbb7166c088460d6d

                                              SHA256

                                              fd419a87fbf552e61bf70f2363e1896a90c55722983c111d2c72c1a94d1f33dd

                                              SHA512

                                              a1fc72330b02a085c868d40c670c09d384712d4347502ff54fb7f24c6f089acf008d444a301be34e15797b605cd435b281e5902f6b751420441312bb60d45e49

                                            • memory/1336-21-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/1336-29-0x0000000000400000-0x0000000000420000-memory.dmp

                                              Filesize

                                              128KB

                                            • memory/1500-45-0x0000000006C80000-0x0000000006C8A000-memory.dmp

                                              Filesize

                                              40KB

                                            • memory/2044-36-0x0000000005350000-0x0000000005362000-memory.dmp

                                              Filesize

                                              72KB

                                            • memory/2044-37-0x0000000006050000-0x000000000608C000-memory.dmp

                                              Filesize

                                              240KB

                                            • memory/2044-35-0x0000000004F30000-0x0000000004F96000-memory.dmp

                                              Filesize

                                              408KB

                                            • memory/2044-34-0x0000000004E90000-0x0000000004F22000-memory.dmp

                                              Filesize

                                              584KB

                                            • memory/2044-33-0x00000000053A0000-0x0000000005944000-memory.dmp

                                              Filesize

                                              5.6MB

                                            • memory/2044-30-0x00000000004D0000-0x000000000052E000-memory.dmp

                                              Filesize

                                              376KB

                                            • memory/2044-19-0x0000000072C2E000-0x0000000072C2F000-memory.dmp

                                              Filesize

                                              4KB

                                            • memory/4824-20-0x0000000003D80000-0x0000000003D81000-memory.dmp

                                              Filesize

                                              4KB