Analysis

  • max time kernel
    36s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    01/05/2023, 17:15

General

  • Target

    fb11be4f9b79350a9b1e70ef3e835d0c066f15ea84424bc639e0fc70227d05a3.exe

  • Size

    66KB

  • MD5

    82939ee2605a46e68018d5b075ef8e7a

  • SHA1

    6579b9eb62650df681b9ddc870d1012d23b85b09

  • SHA256

    fb11be4f9b79350a9b1e70ef3e835d0c066f15ea84424bc639e0fc70227d05a3

  • SHA512

    2eb55b7c6a92bae97c2399fc446ad0556e885290f9968d5405187d8c1bd6137db31c30cbfda8360206cb92246d0a50bd35f7585a2cd6d50a526ea40b335055d5

  • SSDEEP

    1536:v2UukvF1tkk/hEYRo2NQphePvUgcKu5UYF5KzUWudRj5sjsjObUu/+tfPQNnr/rR:v2JkvF1tkXKu5UYF5KzhuDj5sjIObUlE

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

C2

mikedonohue.kozow.com:30305

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb11be4f9b79350a9b1e70ef3e835d0c066f15ea84424bc639e0fc70227d05a3.exe
    "C:\Users\Admin\AppData\Local\Temp\fb11be4f9b79350a9b1e70ef3e835d0c066f15ea84424bc639e0fc70227d05a3.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2028

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          62KB

          MD5

          3ac860860707baaf32469fa7cc7c0192

          SHA1

          c33c2acdaba0e6fa41fd2f00f186804722477639

          SHA256

          d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

          SHA512

          d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

        • C:\Users\Admin\AppData\Local\Temp\TarA675.tmp

          Filesize

          164KB

          MD5

          4ff65ad929cd9a367680e0e5b1c08166

          SHA1

          c0af0d4396bd1f15c45f39d3b849ba444233b3a2

          SHA256

          c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

          SHA512

          f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

        • memory/2028-54-0x0000000000840000-0x0000000000856000-memory.dmp

          Filesize

          88KB

        • memory/2028-55-0x0000000004170000-0x00000000041B0000-memory.dmp

          Filesize

          256KB

        • memory/2028-73-0x0000000004170000-0x00000000041B0000-memory.dmp

          Filesize

          256KB

        • memory/2028-74-0x00000000004D0000-0x00000000004F8000-memory.dmp

          Filesize

          160KB