Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-08-2024 02:14

General

  • Target

    jvc-8u4s1-windows-x64.exe

  • Size

    48KB

  • MD5

    b77b6f320658052190bc6d8ad4d2af08

  • SHA1

    93616dc05fa610404ed0edce3b8cc022d9698620

  • SHA256

    56d67d94231313f17441a91581a4b2251a27ec108e116343284e6d6ee8c097f3

  • SHA512

    0800cacbcb3f6685ea62cab8acbd98d0298be392f1ba963afd630d4b2da6ac7008cc3eb8c90d34b05348f3f79280e330c9ca119a1d5f31d50d429121ebc8b7d6

  • SSDEEP

    768:uuSz9fTAYJTbWUnC+zmo2qLRmDu8klKTsiPINh+t50Jr1rxS0i0bJ0dLCe4M/PtY:uuSz9fTAW92BMLNh+Q91ZdbJ0VuGLTET

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

Lo5piiHgqrhL

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/s14cUU5G

aes.plain

Signatures

  • AsyncRat

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jvc-8u4s1-windows-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\jvc-8u4s1-windows-x64.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4772-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

    Filesize

    4KB

  • memory/4772-1-0x00000000001C0000-0x00000000001D2000-memory.dmp

    Filesize

    72KB

  • memory/4772-2-0x00000000748E0000-0x0000000075090000-memory.dmp

    Filesize

    7.7MB

  • memory/4772-3-0x0000000004B60000-0x0000000004BC6000-memory.dmp

    Filesize

    408KB

  • memory/4772-4-0x0000000004FC0000-0x000000000505C000-memory.dmp

    Filesize

    624KB