Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    28-06-2024 03:46

General

  • Target

    2024-06-28_15580dae4a38e0ee4581c1cb3b1d98eb_asyncrat_icedid.exe

  • Size

    1.9MB

  • MD5

    15580dae4a38e0ee4581c1cb3b1d98eb

  • SHA1

    493a4b1a0207ea640efed703e4680ca4a73dfab9

  • SHA256

    859e715607c56783ca86527dc6e6696d741030b10d9c17a911ddf933d6ebe4ac

  • SHA512

    712a4ff9c0d401c757c162cf91094fc5e977e3183cce364415823fe78f44e83d0e128730f25d2fcfae3319148118c0512d4fbc5b6fd608a3677b957209132ebd

  • SSDEEP

    24576:SbgHrheVS3QUa4EbvAH8MeRaW8OF+91iYv4Y22cMUrRnZlRvdseSb1WS8b7zF61A:SOeQQr4EbvdQOQiYvku23rsZWS8b7ZX

Score
10/10

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

allay.f3322.net:5050

Mutex

fgidvwdtbfcdtau

Attributes
  • delay

    1

  • install

    true

  • install_file

    WriteFile.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 26 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 23 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:\Users\Admin\AppData\Local\Temp\2024-06-28_15580dae4a38e0ee4581c1cb3b1d98eb_asyncrat_icedid.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-28_15580dae4a38e0ee4581c1cb3b1d98eb_asyncrat_icedid.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Client.exe
      "C:\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WriteFile" /tr '"C:\Users\Admin\AppData\Roaming\WriteFile.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2896
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "WriteFile" /tr '"C:\Users\Admin\AppData\Roaming\WriteFile.exe"'
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1264
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1C09.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:532
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:844
        • C:\Users\Admin\AppData\Roaming\WriteFile.exe
          "C:\Users\Admin\AppData\Roaming\WriteFile.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 900
      2⤵
      • Program crash
      PID:1484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Client.exe

    Filesize

    74KB

    MD5

    91b01e99b841549fb21482b956ac78cf

    SHA1

    82d240f2c2ae343f4d7c6fd37af7e41374935a5f

    SHA256

    6036f85e4763107b83190d95294b87202d451a2548f4b90cc862ea81f269c0db

    SHA512

    10acfdd4d14ca93b2b05932b16b4940afff020aa18f6ded0799749e0f793f8fc94874cf5e55fb2acf041e233cc0bedcc272cadfbb5d4516f9abdcd6ef18d9b0a

  • C:\Users\Admin\AppData\Local\Temp\tmp1C09.tmp.bat

    Filesize

    153B

    MD5

    5f12931ee34223acd6f79b23bc954acf

    SHA1

    c6dd29a0ed66146bfe89c72436d4ffa7e3e4fdf6

    SHA256

    7b23567aada09f881c4b4ff6e08c4553b133c273565aa17f4ba05ab946af0403

    SHA512

    1bde74248b5e63578fc8ffa6a1e183e9ee1d18e7e73f48aee3d8673b2f4dfd0f9c0495fd3c2c6aba827ea89ab8fbc3556676205097f803e9d06bf85ebaa95924

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

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • memory/564-73-0x0000000001180000-0x0000000001198000-memory.dmp

    Filesize

    96KB

  • memory/1512-55-0x000007FEF5D03000-0x000007FEF5D04000-memory.dmp

    Filesize

    4KB

  • memory/1512-69-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/1512-67-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/1512-58-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/1512-56-0x0000000000340000-0x0000000000358000-memory.dmp

    Filesize

    96KB

  • memory/1724-27-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-13-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-39-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-37-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-34-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-31-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-29-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-4-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-25-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-23-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-22-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-19-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-17-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-41-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-11-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-9-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-7-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-6-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-43-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-45-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-47-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-48-0x0000000068CD0000-0x0000000068CDF000-memory.dmp

    Filesize

    60KB

  • memory/1724-50-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-35-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-15-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB

  • memory/1724-5-0x0000000010000000-0x000000001003C000-memory.dmp

    Filesize

    240KB