Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 13:25

General

  • Target

    0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe

  • Size

    210KB

  • MD5

    08adca5907849bca41a607e62864cd4a

  • SHA1

    7c7be1451cf7175923139990572470b3fceef9d7

  • SHA256

    0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4

  • SHA512

    00c121b25f04eba9471abfc8cdf9a63fa5fc6e991d5086cda53245315104831bcddc763d5fba6a9744bf4aaee0829484365ae2e8652c4b01639a798b981ec360

  • SSDEEP

    3072:sr85Cezj8mZw0YaeiJFqIPu/i9bVJ2cxO06+WpzIz+STW8djpN6x:k9K8mm0YmfXPSi9bDDy8XN6x

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot5344934242:AAF3rLeFDCGd-IVKJG_PU99MSQjdKyNgeR0/sendMessage?chat_id=1619136628

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#.

  • Detect Neshta payload 6 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 2 IoCs
  • Async RAT payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 7 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.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 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: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe
    "C:\Users\Admin\AppData\Local\Temp\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\3582-490\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:1864
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4592
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:364
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2436
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4112
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3332
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\14ab40ab3b7d552d27aaa21acdeb9d9b\Admin@PTMYPFTV_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\14ab40ab3b7d552d27aaa21acdeb9d9b\Admin@PTMYPFTV_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    abeb6f4f3a109e0533d8456b72dfd6f6

    SHA1

    ca047a7b7e3eb5a970072ce5ad5a04d67e43cda8

    SHA256

    b5ccebcf63d06eec50398685ef2261b17158949751908d6016926ef6a8c7ebb9

    SHA512

    cf26986262392e8c09b76c848d240b0029dac404fdf82b157c01104e9d1a000e6610ad6875ee16023d2c24a651eb6f9f54e63a77351a6a9f9a1b4f130d83557a

  • C:\Users\Admin\AppData\Local\968a559c03331e1c39f114ddb0613173\msgid.dat

    Filesize

    5B

    MD5

    4607d59dfdb94c404b1bc22055f11b4c

    SHA1

    3f47a5581a537616d599c875fb75bcb6c06be3f1

    SHA256

    2c3655d87d86463592be1077e480b204d28e3d4cfa4864e74f16bd45134395d7

    SHA512

    578fad7f920e70f2363e55c9efd1db58d4e44fce318a05bd9b04050f6ae6ef5226c691a898ab127ca418a767cb55ec7506c9ece0aeb089bd8bf740da08a40884

  • C:\Users\Admin\AppData\Local\Temp\3582-490\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe

    Filesize

    170KB

    MD5

    e29ab30e42348ecf2831928b7b95d5d8

    SHA1

    70ae302ae078326efbe444fd8158d2b104a06a69

    SHA256

    58b1013f511e61f2ddfb547939895ec161ab8bc03f5413529f85f1a3272d38d4

    SHA512

    34a3209dc0856ea0e4d0573eca4dd53b238ebb317f10cb84683d99c64c1264693390d42193fcbac190ce9d9e0a33c9f32de8c4a57e4d38ec267ad16ad5d3138d

  • memory/2168-292-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2168-289-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2168-288-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2168-200-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2168-255-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4928-249-0x0000000006010000-0x00000000060A2000-memory.dmp

    Filesize

    584KB

  • memory/4928-250-0x0000000006660000-0x0000000006C04000-memory.dmp

    Filesize

    5.6MB

  • memory/4928-254-0x0000000006200000-0x000000000620A000-memory.dmp

    Filesize

    40KB

  • memory/4928-247-0x0000000073900000-0x00000000740B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4928-88-0x0000000005480000-0x00000000054E6000-memory.dmp

    Filesize

    408KB

  • memory/4928-261-0x0000000006ED0000-0x0000000006EE2000-memory.dmp

    Filesize

    72KB

  • memory/4928-284-0x000000007390E000-0x000000007390F000-memory.dmp

    Filesize

    4KB

  • memory/4928-286-0x0000000073900000-0x00000000740B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4928-14-0x0000000073900000-0x00000000740B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4928-13-0x0000000000AA0000-0x0000000000AD0000-memory.dmp

    Filesize

    192KB

  • memory/4928-290-0x0000000073900000-0x00000000740B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4928-12-0x000000007390E000-0x000000007390F000-memory.dmp

    Filesize

    4KB