Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 08:44

General

  • Target

    Payment Confirmation.scr

  • Size

    796KB

  • MD5

    9faf1f32261228f8585abed6f20937fa

  • SHA1

    77aed48c44f7ab0bebd9594dbf181c5ab37cfdbc

  • SHA256

    ba9c66678d7a68160c563dbd9cfe0a1255a05191a9537fea44c4a264c4abebd4

  • SHA512

    2746e15661edc7e865b9e59a40bf537142aa5bf261f32ce47eac8a7c344497360ef270a63f0bc114fe69496fceb4227702110f5a990bebd5efcee64e8c99e513

  • SSDEEP

    12288:nb8f2uE1zDo5MXuvMhHshfzujSmDFkrpQA5Ay9KSZT1ywFL8Cnj8f2:nbu2uOQ5MeUhezuSt8yrywCCnju2

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/bot7706441145:AAGi9KVU48kkRRQ9YRTCxkt9Lt_xWJ_wQ8w/sendMessage?chat_id=7557285388

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#.

  • Asyncrat family
  • StormKitty

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

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops desktop.ini file(s) 8 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.

  • Suspicious use of SetThreadContext 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 11 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.

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr
    "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5020
    • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr
      "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr"
      2⤵
      • Checks computer location settings
      • 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:3736
      • 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:3332
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1368
        • 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:3088
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3080
      • 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:756
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1392
        • 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:3320
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.scr"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\47747480feae765d7b8e3bdda6c0cde3\Admin@GLZCSNLK_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\47747480feae765d7b8e3bdda6c0cde3\Admin@GLZCSNLK_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    042f9edc02f88f3ed73d52960bb99e79

    SHA1

    af008038c6b107294fd16ced5d7632d9d9124cce

    SHA256

    1a0c6442838b4a5192633f3e9f25f1515e23c2e93c78d3c4f0988e051001a043

    SHA512

    53f4c9a73566080839369f9595c518caa65f69970a6f7ef41bc6cbf3013f50c7314d76a8221ee3b759b27a64b15bd840481fef1f9c01fc3278dcc3908c05d53d

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lcvwnjm0.bfe.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\fda0a38000a2af762e53f92d990c653e\msgid.dat

    Filesize

    2B

    MD5

    a5771bce93e200c36f7cd9dfd0e5deaa

    SHA1

    5b384ce32d8cdef02bc3a139d4cac0a22bb029e8

    SHA256

    aea92132c4cbeb263e6ac2bf6c183b5d81737f179f21efdc5863739672f0f470

    SHA512

    caae34a5e81031268bcdaf6f1d8c04d37b7f2c349afb705b575966f63e2ebf0fd910c3b05160ba087ab7af35d40b7c719c53cd8b947c96111f64105fd45cc1b2

  • memory/3736-13-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3736-218-0x0000000006B90000-0x0000000006BA2000-memory.dmp

    Filesize

    72KB

  • memory/3736-212-0x0000000005BC0000-0x0000000005BCA000-memory.dmp

    Filesize

    40KB

  • memory/3736-165-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3736-151-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3736-17-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/3736-15-0x0000000004D20000-0x0000000004D86000-memory.dmp

    Filesize

    408KB

  • memory/3736-11-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/5020-33-0x0000000005B50000-0x0000000005EA4000-memory.dmp

    Filesize

    3.3MB

  • memory/5020-55-0x00000000074F0000-0x0000000007504000-memory.dmp

    Filesize

    80KB

  • memory/5020-121-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-93-0x00000000075D0000-0x00000000075D8000-memory.dmp

    Filesize

    32KB

  • memory/5020-19-0x0000000005080000-0x00000000056A8000-memory.dmp

    Filesize

    6.2MB

  • memory/5020-18-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-20-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-16-0x00000000049D0000-0x0000000004A06000-memory.dmp

    Filesize

    216KB

  • memory/5020-21-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5020-62-0x00000000075F0000-0x000000000760A000-memory.dmp

    Filesize

    104KB

  • memory/5020-32-0x0000000005A70000-0x0000000005AD6000-memory.dmp

    Filesize

    408KB

  • memory/5020-31-0x0000000005960000-0x0000000005982000-memory.dmp

    Filesize

    136KB

  • memory/5020-54-0x00000000074E0000-0x00000000074EE000-memory.dmp

    Filesize

    56KB

  • memory/5020-34-0x0000000005F80000-0x0000000005F9E000-memory.dmp

    Filesize

    120KB

  • memory/5020-35-0x00000000061F0000-0x000000000623C000-memory.dmp

    Filesize

    304KB

  • memory/5020-36-0x0000000006540000-0x0000000006572000-memory.dmp

    Filesize

    200KB

  • memory/5020-47-0x00000000065B0000-0x00000000065CE000-memory.dmp

    Filesize

    120KB

  • memory/5020-37-0x0000000070460000-0x00000000704AC000-memory.dmp

    Filesize

    304KB

  • memory/5020-48-0x0000000007170000-0x0000000007213000-memory.dmp

    Filesize

    652KB

  • memory/5020-49-0x00000000078F0000-0x0000000007F6A000-memory.dmp

    Filesize

    6.5MB

  • memory/5020-50-0x00000000072B0000-0x00000000072CA000-memory.dmp

    Filesize

    104KB

  • memory/5020-51-0x0000000007320000-0x000000000732A000-memory.dmp

    Filesize

    40KB

  • memory/5020-52-0x0000000007530000-0x00000000075C6000-memory.dmp

    Filesize

    600KB

  • memory/5020-53-0x00000000074B0000-0x00000000074C1000-memory.dmp

    Filesize

    68KB

  • memory/5056-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

    Filesize

    4KB

  • memory/5056-14-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5056-8-0x00000000747EE000-0x00000000747EF000-memory.dmp

    Filesize

    4KB

  • memory/5056-9-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5056-7-0x0000000004DC0000-0x0000000004DE6000-memory.dmp

    Filesize

    152KB

  • memory/5056-10-0x0000000004420000-0x00000000044A4000-memory.dmp

    Filesize

    528KB

  • memory/5056-6-0x0000000004CF0000-0x0000000004D8C000-memory.dmp

    Filesize

    624KB

  • memory/5056-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

    Filesize

    40KB

  • memory/5056-4-0x00000000747E0000-0x0000000074F90000-memory.dmp

    Filesize

    7.7MB

  • memory/5056-3-0x0000000004A60000-0x0000000004AF2000-memory.dmp

    Filesize

    584KB

  • memory/5056-2-0x0000000004F70000-0x0000000005514000-memory.dmp

    Filesize

    5.6MB

  • memory/5056-1-0x0000000000140000-0x000000000020C000-memory.dmp

    Filesize

    816KB