Resubmissions

Analysis

  • max time kernel
    58s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-10-2024 12:01

Errors

Reason
Machine shutdown

General

  • Target

    New Compressed (zipped) Folder.zip

  • Size

    35KB

  • MD5

    2f8686bb41f2630a770e831b2e2e162e

  • SHA1

    5cf31b68b6503d22c4a65fcb4f4989f052becc69

  • SHA256

    bd4f765c8608ad84aab3859639f4dfc925c2f099434e1c0e2d7db15fc7d05e8f

  • SHA512

    cb6c6315f4acfc729517840b92682c0bbcbf56cb384873fdf8c95e5adf3fad7258e606b016b122180ac9c286c8c4591cfd1bcd669a86a9ee483299dad4a1f4bc

  • SSDEEP

    768:ykeI/9/uVjK7HKy84/igZ8TgZkXTe1GZ6UNolhM6n:x/9/X7S4/VJqTeI8H

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

Mutex

zibgoamyfpalbhsqxxf

Attributes
  • delay

    1

  • install

    true

  • install_file

    discord.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 7 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 15 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 62 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\New Compressed (zipped) Folder.zip"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1124
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3356
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "discord" /tr '"C:\Users\Admin\AppData\Roaming\discord.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "discord" /tr '"C:\Users\Admin\AppData\Roaming\discord.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1592
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA6FE.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:452
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3380
      • C:\Users\Admin\AppData\Roaming\discord.exe
        "C:\Users\Admin\AppData\Roaming\discord.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1484
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4624
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:468
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4412
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2660
  • C:\Users\Admin\Desktop\discord.exe
    "C:\Users\Admin\Desktop\discord.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1360
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1552
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa3939855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\discord.exe.log

    Filesize

    1KB

    MD5

    baf55b95da4a601229647f25dad12878

    SHA1

    abc16954ebfd213733c4493fc1910164d825cac8

    SHA256

    ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

    SHA512

    24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

  • C:\Users\Admin\AppData\Local\Temp\tmpA6FE.tmp.bat

    Filesize

    151B

    MD5

    c224a466712aae64eb1ae7f9335da653

    SHA1

    0ceb58cf305ead8175e2f6d632ec1ef1fc3ba7a2

    SHA256

    a11e9cbe9436fecbb52eb3ad6994466cb5129613cfb40c0406c88f24b03d30f3

    SHA512

    1fd34ffcc16eed9c719efc95f317c0821c19018b20cb62cb8f9d311f9d4a2dc6209b66b0aa0592c159243546ccad1db6b137857149c6e8b995356c54b2f59f6d

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • C:\Users\Admin\Desktop\discord.exe

    Filesize

    74KB

    MD5

    45543e1a02340ade4c65314fbf401d09

    SHA1

    a75eb9173c40a1b0e47af74cd0b51c99905a56fe

    SHA256

    21fff7a94a630799dd5393bf16019816998086b843e3310fb8f33dbc74f5011f

    SHA512

    a4288d6094ca6d43a92eeff9f94a9fc7aa2f4fb9023227f07a2eb69a484a1e1b2277351ec01ac6ad246e5587debe8277edbcf61f41b1e4b90caabdda9c52b23b

  • memory/1552-37-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-35-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-31-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-32-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-33-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-25-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-26-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-27-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-34-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/1552-36-0x000001DDE5880000-0x000001DDE5881000-memory.dmp

    Filesize

    4KB

  • memory/3356-13-0x00007FFCC4C70000-0x00007FFCC5731000-memory.dmp

    Filesize

    10.8MB

  • memory/3356-4-0x00007FFCC4C73000-0x00007FFCC4C75000-memory.dmp

    Filesize

    8KB

  • memory/3356-5-0x0000000000900000-0x0000000000918000-memory.dmp

    Filesize

    96KB

  • memory/3356-7-0x00007FFCC4C70000-0x00007FFCC5731000-memory.dmp

    Filesize

    10.8MB

  • memory/3356-12-0x00007FFCC4C70000-0x00007FFCC5731000-memory.dmp

    Filesize

    10.8MB