Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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) 5 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe
    "C:\Users\Admin\AppData\Local\Temp\0a8fe4d8b13e9cb811bf9985b89cb0a38ee2e594e705a0b366d80e55a3d6f5a4.exe"
    1⤵
    • Loads dropped DLL
    • 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:2056
    • 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:3056
      • 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:944
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2192
        • 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:1680
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2080
      • 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:2140
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2384
        • 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:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\3bb311ebc534bbb7aabc8a3bfa44b968\Admin@MVFYZPLM_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\3e95858006cf3c2483e13f5c871a19eb\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

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

    Filesize

    170KB

    MD5

    e29ab30e42348ecf2831928b7b95d5d8

    SHA1

    70ae302ae078326efbe444fd8158d2b104a06a69

    SHA256

    58b1013f511e61f2ddfb547939895ec161ab8bc03f5413529f85f1a3272d38d4

    SHA512

    34a3209dc0856ea0e4d0573eca4dd53b238ebb317f10cb84683d99c64c1264693390d42193fcbac190ce9d9e0a33c9f32de8c4a57e4d38ec267ad16ad5d3138d

  • memory/2056-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-160-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-168-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-169-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-171-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3056-14-0x0000000073CD0000-0x00000000743BE000-memory.dmp

    Filesize

    6.9MB

  • memory/3056-13-0x0000000000C50000-0x0000000000C80000-memory.dmp

    Filesize

    192KB

  • memory/3056-12-0x0000000073CDE000-0x0000000073CDF000-memory.dmp

    Filesize

    4KB

  • memory/3056-166-0x0000000073CDE000-0x0000000073CDF000-memory.dmp

    Filesize

    4KB

  • memory/3056-167-0x0000000073CD0000-0x00000000743BE000-memory.dmp

    Filesize

    6.9MB