Analysis

  • max time kernel
    10s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 12:11

General

  • Target

    Paypal cracker.exe

  • Size

    6.6MB

  • MD5

    5627dd16f023b8be51ed365d2fb6fee5

  • SHA1

    fcccce747bf6c824233cfda366798fa0467d3daf

  • SHA256

    2e2f6fe5b310d843656af43b60c0faddf6eb0f329efc8353272437db44b5f247

  • SHA512

    e475f903d2afd4c1b985f368f77610270df54bb8207130f6339e59595777718cfadadbb732775523a11aa035cbbf3c6d81896a33d84b40f6c01f182a1654f637

  • SSDEEP

    98304:xRlI+LjNr86mjj/UYviu26bbyKS2myX0rPpIh1KcV:xRlVmj72wblTmyEpG17V

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

windows security

C2

quasarrat220-24487.portmap.io:24487

Mutex

VNM_MUTEX_mOPqShedZxvAqgLrWL

Attributes
  • encryption_key

    7mvA2TfKjvMIY0zZeMKF

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Signatures

  • Contains code to disable Windows Defender 4 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 4 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Venomrat family
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 13 IoCs
  • Adds Run key to start application 2 TTPs 2 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.

  • 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 10 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.

  • Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Paypal cracker.exe
    "C:\Users\Admin\AppData\Local\Temp\Paypal cracker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Roaming\systemsvc.exe
      "C:\Users\Admin\AppData\Roaming\systemsvc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1868
    • C:\Users\Admin\AppData\Roaming\systemkvc.exe
      "C:\Users\Admin\AppData\Roaming\systemkvc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2408
      • C:\Services\6D9F65642DE.exe
        "C:\Services\6D9F65642DE.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2724
        • C:\Users\Admin\AppData\Local\Temp\mdXDB80.exe
          "C:\Users\Admin\AppData\Local\Temp\mdXDB80.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer Phishing Filter
          • Modifies Internet Explorer settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1048
    • C:\Users\Admin\AppData\Local\Temp\Checker.exe
      "Checker.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\Users\Admin\AppData\Local\Temp\PAYPAL.EXE
        "C:\Users\Admin\AppData\Local\Temp\PAYPAL.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2684
      • C:\Users\Admin\AppData\Local\Temp\WINDOWS SECURITY.EXE
        "C:\Users\Admin\AppData\Local\Temp\WINDOWS SECURITY.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "Venom Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\WINDOWS SECURITY.EXE" /rl HIGHEST /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2276
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\fsiA4tgT9KZZ.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2992
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1640
          • C:\Windows\SysWOW64\PING.EXE
            ping -n 10 localhost
            5⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:1568
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2784 -s 1444
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Services\EA4B9E659440873

    Filesize

    34KB

    MD5

    6a172fdb857f0ac1921efc443e407e7d

    SHA1

    9401bd19abe0750b866625107f146c1cf55c75b8

    SHA256

    ab3adcd792f9526fc8634b1de30773d74becadaf056c8d3b1aeee1641f4d640b

    SHA512

    195a632b76a2a19227cbd1364b810148764c6e5b94971d3e34f93e83d38d410d122db52671a9ebca4087e0216361c6e54db7f959a83832cb5ca2d769cec04ef2

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

    Filesize

    5.9MB

    MD5

    3425a9f00842bf28a0bafc5c1571b881

    SHA1

    3009eca32bcf159981d37a8620836b1d215aa33e

    SHA256

    7328321fccd71cfda94a18656158ce54b0e3a0831d48f46f559b442a33a1790a

    SHA512

    868b816f376a3bc38d24850808eb5410e4037acedd0849ad73868065525444a4cca54e3484d5ac0b14523217f3d6da24fc6132942632653439f0ea5310084bc7

  • C:\Users\Admin\AppData\Local\Temp\WINDOWS SECURITY.EXE

    Filesize

    534KB

    MD5

    9e14775490cee79c73cb45c2f24f7a73

    SHA1

    ddd6c7485a5e64a66a0a7598777abdafa7a63950

    SHA256

    d53df5b6b080ba24773ca16c7a8b70eeb783ead278712e0c5b44abc84805e60e

    SHA512

    1c0aec61a64400bcf18f6f0e5a950c68b7a25492b07290e3793a759f616c1b361ed6472d260d0f379b691567216a1f9e53af53b2dc89711df618a4463c8d0317

  • C:\Users\Admin\AppData\Local\Temp\fsiA4tgT9KZZ.bat

    Filesize

    213B

    MD5

    13c54779f2b468bd213141c0184ef42d

    SHA1

    a94965739794cf660e389bf4ed06966d771cb595

    SHA256

    1af09e8b7c2dab7f88bb91711e558c2e39ee0ced445be865cbc7bee7db45c6d4

    SHA512

    4ddb7dfba69a3a7c789dbfb4ab8f34b244fd2ce5f007799101b5b1aa40848e6cd5037e13859be3674197ce8c0bafdec265e24aa18ecefa61e4b14b81492827a5

  • C:\Users\Admin\AppData\Roaming\systemkvc.exe

    Filesize

    355KB

    MD5

    33ed3913ea48a41363644e37261fddc2

    SHA1

    f52b405849a5bcffa792ee44643c7d6c9db9044f

    SHA256

    3859cde03ca6389bb5973e274ab9da5b51b9593a319e1b16330225b2aea8bd63

    SHA512

    1b4c87215b7da10166ddfc9a9f214a8fc4292905517f4632fea937fd5aff83f8cec3c99cf15dac0d6d34f0a180b592e2f3fc8346e6aa52bcf064c396b547e053

  • \Users\Admin\AppData\Local\Temp\PAYPAL.EXE

    Filesize

    5.3MB

    MD5

    341b34b571af06277c2f3b4156bd86df

    SHA1

    ba120240400cc6dcf0e92e732d4f460f3763102b

    SHA256

    9a579053ee79c9ee45e29ac1887aba8cb87936c01026b5f3d830456547adc441

    SHA512

    2cbb482d2e087e18b7461c9a317aa249adf12821de17d6dd59f3c17e01394047df31e875a551d23d32a64a46f8db46003c2feced7e967dd159bc65d3bff76e66

  • \Users\Admin\AppData\Local\Temp\mdXDB80.exe

    Filesize

    3KB

    MD5

    29090b6b4d6605a97ac760d06436ac2d

    SHA1

    d929d3389642e52bae5ad8512293c9c4d3e4fab5

    SHA256

    98a24f0caf5b578e230e6f1103a5fba6aecb28a9128cad5520fcde546d643272

    SHA512

    9121ec42fa66e14a4fc3932c8dbcc8fb1a93ab9de00da57a82e176faa70b73f6992f8c5e2ab52c02fc28c8f0c59aee73b6fbbd39107db7d15105054f4390e9be

  • \Users\Admin\AppData\Roaming\systemsvc.exe

    Filesize

    299KB

    MD5

    5d5392e5c3edac5337a75692f75b4c8e

    SHA1

    80b9f25c4162e69fc24a5a056e2c3fc029b68f02

    SHA256

    e7c8df1d1cf7e5abf9c6c025ee99acad9ce907d5f584bb38c5eeb32706251109

    SHA512

    15141c710c41ff75b23b8b406d91b105dcfe5bb8819ae067baf1d2383a599e081ce14c978bdae151129352ccb096cd587e4ab1bf4f0995c284907e606ed66227

  • memory/1048-118-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-82-0x0000000000270000-0x0000000000286000-memory.dmp

    Filesize

    88KB

  • memory/1048-71-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-76-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-77-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-78-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-80-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-84-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-97-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-98-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-94-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-102-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-105-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-81-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/1048-83-0x0000000000270000-0x0000000000286000-memory.dmp

    Filesize

    88KB

  • memory/1048-99-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-100-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-101-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-103-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-104-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-106-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-107-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-108-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-109-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-110-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-111-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-120-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-112-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-117-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-116-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-115-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-114-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/1048-113-0x000000000BB50000-0x000000000BBA2000-memory.dmp

    Filesize

    328KB

  • memory/2408-59-0x0000000001160000-0x00000000011BC000-memory.dmp

    Filesize

    368KB

  • memory/2408-46-0x0000000000030000-0x0000000000031000-memory.dmp

    Filesize

    4KB

  • memory/2408-245-0x0000000000040000-0x000000000009C000-memory.dmp

    Filesize

    368KB

  • memory/2408-23-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2408-47-0x0000000000030000-0x0000000000031000-memory.dmp

    Filesize

    4KB

  • memory/2408-58-0x0000000001160000-0x00000000011BC000-memory.dmp

    Filesize

    368KB

  • memory/2408-283-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2408-22-0x000000000076E000-0x000000000076F000-memory.dmp

    Filesize

    4KB

  • memory/2408-21-0x000000000076E000-0x000000000076F000-memory.dmp

    Filesize

    4KB

  • memory/2408-24-0x000000000076E000-0x000000000076F000-memory.dmp

    Filesize

    4KB

  • memory/2408-20-0x0000000000040000-0x000000000009C000-memory.dmp

    Filesize

    368KB

  • memory/2684-42-0x0000000000400000-0x0000000000B2B000-memory.dmp

    Filesize

    7.2MB

  • memory/2724-61-0x0000000001160000-0x00000000011BC000-memory.dmp

    Filesize

    368KB

  • memory/2724-74-0x0000000001160000-0x00000000011BC000-memory.dmp

    Filesize

    368KB

  • memory/2752-37-0x0000000003430000-0x0000000003B5B000-memory.dmp

    Filesize

    7.2MB

  • memory/2784-128-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-134-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-133-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-45-0x0000000000030000-0x00000000000BC000-memory.dmp

    Filesize

    560KB

  • memory/2784-132-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-131-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-130-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-129-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-127-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-126-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-125-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-124-0x000000000BAD0000-0x000000000BB16000-memory.dmp

    Filesize

    280KB

  • memory/2784-122-0x00000000004D0000-0x00000000004D1000-memory.dmp

    Filesize

    4KB

  • memory/2784-121-0x00000000004D0000-0x00000000004D1000-memory.dmp

    Filesize

    4KB