Analysis

  • max time kernel
    132s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 20:19

General

  • Target

    Adobe Download Manager.exe

  • Size

    2.0MB

  • MD5

    cc38554b00499e85149b2c1c0a22473e

  • SHA1

    13382965ec47a60dcf07aeadd7414f215099f564

  • SHA256

    f8b6eddbe3fd90f45c93cfdaf71fe200371518c6f0c100e2aad9f193d7260c05

  • SHA512

    0efe34a59ef8990aa40db6066128f44108c0bce914e450ba69cafae0664c3190cdbdfd0511e42a25e8f4d880e456ef2ccedcd690603e102ae4dcdf7170b2790c

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYP:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YB

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 13 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 14 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 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 2 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 AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2960
    • 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:2420
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
        • Maps connected drives based on registry
        PID:3052
    • C:\Users\Admin\AppData\Local\Temp\windef.exe
      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2956
      • 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:1032
      • 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:472
        • 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:1048
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\nsJYgwNSaveJ.bat" "
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:996
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            5⤵
              PID:280
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              5⤵
              • Runs ping.exe
              PID:2076
            • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
              "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
              5⤵
              • Executes dropped EXE
              PID:3068
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 472 -s 1444
            4⤵
            • Loads dropped DLL
            • Program crash
            PID:1260
      • C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe
        "C:\Users\Admin\AppData\Local\Temp\Adobe Download Manager.exe"
        2⤵
          PID:1948

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        208B

        MD5

        388180a6ef950a4eb64e82ae3f9b9254

        SHA1

        4f7b15788f908c3ba7872dd4d037ef50eccfb67f

        SHA256

        8ff4ddec8976d59bc3d72b230f931eddb30605ba96447558945d3960291db076

        SHA512

        e4ca7a3672b8d727b32f453a38f6e5991a17ba70581c343d3b04ad84bcb1bc3c57f419af1066db2920784f369dbab1c5ebb33f5bc80e33ad9d92bedcb740ca1b

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

        Filesize

        403KB

        MD5

        6a87203d639036251e7b0ab6ec80d7e9

        SHA1

        8a84d391154dfdcf6c346b5301f2471eebbab242

        SHA256

        7fbf00b9a68b86409bc35e11a6a96928628d25aa5e23f3d08b3491e0a002e40a

        SHA512

        7a019534bee60d794968b687aacda4196d32976021b2ce8303745bb23cce16ca47dde1c8a06d08e64d1cfb889c40800dcf855cc6fa63f189f546d2c95f0bb10d

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

        Filesize

        245KB

        MD5

        b4d4ad01058720d769ec8d746e28c84c

        SHA1

        99d0f672bc1e8dfb45671854291f1f85206d4dd0

        SHA256

        e6662df2adaea0b43312b90f9751f23b2e3f6a564ea1f4036b45d98f034e159e

        SHA512

        9e9140d648e839a2bb31fc917e0c60f03a2e9222c4cdde4beaf253842567b942fdf5274f92045c84765ac036b46c7cfc2278de36043da56ee32babba162cf5cc

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

        Filesize

        243KB

        MD5

        f65db9ca185b6dd0d8d69d0efefbc7b3

        SHA1

        f07c382c1a8824c1eff2ceb216059a9c7e55c590

        SHA256

        e81e27401a16282288acfaa49713a34b3d5daa8e1d6c90e73876ddca07d72e67

        SHA512

        c29c3d055163bf10de049cf4f55c152d0c0a93a55e99772d063c438769ac482f8ee0413576186d37aca21e5c57958e28f4ecb1bf051b16c44a1cc0141dbcfbda

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

        Filesize

        349KB

        MD5

        b4a202e03d4135484d0e730173abcc72

        SHA1

        01b30014545ea526c15a60931d676f9392ea0c70

        SHA256

        7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

        SHA512

        632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

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

        Filesize

        192KB

        MD5

        1102d2b92fee8fcc2018758414aa7bb3

        SHA1

        68fbda35a1a659fdc2b7527820e39d10a982dc5f

        SHA256

        f68d03ce2433b5b17318ab062ae78f8921d602a89401c94d0d8a5b328069c56b

        SHA512

        dc9a9d45b85fef91a6f580abf0b325131387b58125e7235b777924a664a582ca4bdc672da034cf2befd4920e4ef2cc53f1af742e57a529b19a34d7482d29ef1d

      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe

        Filesize

        67KB

        MD5

        70bd3ad92667755715438df6c7a5aa96

        SHA1

        397b83764affb51ec300416394f669157b21e516

        SHA256

        912fed430bb1cdf8ee0f917d591b32503e4ce484094215cde0054308b5c597be

        SHA512

        b560a0345ab1bddb0b19618906e1fea3b7e9a07b68a556b0e08f27037bd73d8e68e33f07e866f89e66350793099d699a5f08db210af8482f9265be02892a3e71

      • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe

        Filesize

        85KB

        MD5

        e266d2cc494cc1894bce0ac52d7ba36e

        SHA1

        d81ec2d299238c5662f92469c700d1b0c6a77904

        SHA256

        981afcf6ac9e298d0557b7757426dcb91c9af20c453de8e0a454b81f5972b714

        SHA512

        e3562a0d1192d304116c767ee052fe76a77b4d140fd25a544fd082e00cba140e2a1dd5588ee7d3d564cd91d38e3c29d41b18d04c0a98fde925cb5f7b145e60ee

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

        Filesize

        170KB

        MD5

        f2df70bc5b568633051693bc2fe8b98a

        SHA1

        a326d79063a9acfa93f3abf81de9a8e0b4c43d7a

        SHA256

        ee46691b30ce96c83d3add3fc7a2fd7ddc3743b5039711e5bd839fa29a2d34e1

        SHA512

        7a54548bc1d125f7adb584306db6ec6a6e38af07fb9be530496e8bbcdc42e1ec7aaa2e9279bd016dcbb7890034d0a686ddc6df6021291a05ce5635745dbef04e

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

        Filesize

        101KB

        MD5

        e7c3f91598af49fccc73e013bf04bc2d

        SHA1

        fb6f5867ec4b41f462bfce8e63b68d2a52395fde

        SHA256

        8f0c82334e5dfb28e6178e9af6a264288640818de73c0dd33a77612dd06fb6c0

        SHA512

        cde3367bbb801a9ead26ec1d5cbfc0eff9ed54e4bd871b24cc79795a9920e0e5129ce06b2fde0e12bc57a3713527747743722a071dd57a74d38d44087e6dfd20

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

        Filesize

        271KB

        MD5

        e8539f86ffe4a0f326bbed80099d6355

        SHA1

        c3a8f2e38050353bab27303ee1f203b717912643

        SHA256

        9913dea74df581c6c2af92acef74c1d6980b52867b16e926d99d87ab9eeb1608

        SHA512

        5c5b0d891299d219d90f400f6274b7ce80a6c0dcd146b1e4f0e7e7d892bbf85ef27b55226050b750999f5544336bcabad3402e16b040f0a1e8d69d4e0d7a6553

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

        Filesize

        43KB

        MD5

        0a2ad32876c43de892c9878927dffb2c

        SHA1

        13e0211a4b758a48d13b930e297298fb9eafc057

        SHA256

        ac6a52e7b2658c927d6ec5a02cf0c0aeb5537a575a4c127424483bc56f63c0cc

        SHA512

        fea33f23650d191de251148a2f47268e59ded309e2d5b4cd2eb2c2673dd411b31cdba9a77a20fb4f0d29452b5a7102dddc3b8bb661471207294de45e81f0c648

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

        Filesize

        154KB

        MD5

        b876e9a2a334eb90afe831996e625c8e

        SHA1

        952b5799b24036ca038774fd9b96a956cbc6d858

        SHA256

        ae42dcbf78c2ac2c8c6d981ab16222f9d4ec590fd84611a0d58d435c3c49f976

        SHA512

        67e5fa54457fc316ec3178f9bbc839943d2972aa68bae1efb5329bf6691cffd30cfdc78c6a975fbd49c3759bad2fa25295f93d9ff403ab553563a2f5c69e8cba

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

        Filesize

        238KB

        MD5

        f1b1a0ceba3d40b91bc38dd42e47890a

        SHA1

        54f6bc8f14d22e3ec3b698081fece80879d30929

        SHA256

        d10969ff46f2f59597339bd2e333f2f11bbab47db52111598a456b926bb3a5dd

        SHA512

        84ae0210891afda9c6b9ad2e16db30d9500bb66aa30e716303d05ccc6917701dd5354b922ea2278077df9b42e1e9860a6607c7395671dcbae45d37089cab2d03

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

        Filesize

        235KB

        MD5

        d6a467f50944a868664e4fad5a5f9bd9

        SHA1

        35691463d294b2cd7193a6514a9427aa22390a56

        SHA256

        21ec9339733780d48c63b36e2d8a0739bc21229fdfbb43590fe77015f4cf99b0

        SHA512

        eadc43cc1e6e940d5b27f4aa800a1ce8a6fa9f6a7a80d87cf4e93b82cefcecc606e50e401fec8291d3c019a4739dccab1e7821ccf4cf2cbc9ddeaa3042d64302

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

        Filesize

        213KB

        MD5

        b29e33a0c46543e5d1d7d35fce4e12bc

        SHA1

        06876f6590cb340688ff60d98a16bd0e5b5ee9da

        SHA256

        10ab3e3edfb064f132d8c0c512e04c66154254f9358e4657c8623bb238b1cf6f

        SHA512

        3c99677199de4578ba15aa966a28da460a4cce56d21cf096b259273cbd4fd5657a6276946ceec26e491eb62cdc13a5fe3f5a2ddcc36974a0bb35beb5153ffeb5

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

        Filesize

        112KB

        MD5

        77a9e479fc47ca6d23c1eb0cb4b940a0

        SHA1

        54cd2663aa68809158ad81eb5de1d5bc43cf3ac9

        SHA256

        75d887503807fe3b964f5f90c1cdb80380578d39240442c1370d36147ed2d700

        SHA512

        383e8f7d9815c71d2970e2b73abbe52d2f51f5bc00c36a2833c084bca1fb83b602476974f3b77ddbc7fd133a0f1e696acd0d82a6e85186a545b4918d207c50b1

      • memory/472-58-0x0000000000680000-0x00000000006C0000-memory.dmp

        Filesize

        256KB

      • memory/472-63-0x0000000000680000-0x00000000006C0000-memory.dmp

        Filesize

        256KB

      • memory/472-62-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB

      • memory/472-57-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB

      • memory/472-56-0x0000000000B30000-0x0000000000B8E000-memory.dmp

        Filesize

        376KB

      • memory/1948-32-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/1948-30-0x0000000000080000-0x00000000000A0000-memory.dmp

        Filesize

        128KB

      • memory/2956-47-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB

      • memory/2956-48-0x0000000000890000-0x00000000008D0000-memory.dmp

        Filesize

        256KB

      • memory/2956-46-0x0000000000B00000-0x0000000000B5E000-memory.dmp

        Filesize

        376KB

      • memory/2956-59-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB

      • memory/2960-29-0x00000000006A0000-0x00000000006A1000-memory.dmp

        Filesize

        4KB

      • memory/3052-39-0x000007FFFFFDB000-0x000007FFFFFDC000-memory.dmp

        Filesize

        4KB

      • memory/3052-45-0x0000000000170000-0x000000000020C000-memory.dmp

        Filesize

        624KB

      • memory/3052-40-0x0000000000170000-0x000000000020C000-memory.dmp

        Filesize

        624KB

      • memory/3052-61-0x0000000000170000-0x000000000020C000-memory.dmp

        Filesize

        624KB

      • memory/3052-37-0x0000000000020000-0x0000000000021000-memory.dmp

        Filesize

        4KB

      • memory/3052-41-0x0000000000020000-0x0000000000021000-memory.dmp

        Filesize

        4KB

      • memory/3068-79-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB

      • memory/3068-80-0x0000000073C70000-0x000000007435E000-memory.dmp

        Filesize

        6.9MB