Overview

overview

10

Static

static

10

b2fb9490d6...9N.exe

windows7-x64

10

b2fb9490d6...9N.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    119s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2025 07:03

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General

  • Target

    b2fb9490d65af4b5deb441bd62de2bb19d4a5c3bca5851395671030f89cfeff9N.exe

  • Size

    175KB

  • MD5

    5874e9967346f380bdfc996faa173a40

  • SHA1

    023e10088be431cc94c6875c433ba3db5b256e64

  • SHA256

    b2fb9490d65af4b5deb441bd62de2bb19d4a5c3bca5851395671030f89cfeff9

  • SHA512

    694d9a46c59b9d43da35a87f78bb70a5b58359e9a85440848bf0bdff7447f06e78110d409c0a338a163cd953888c9599136abeb83f6e23d870266533bf0bbc0a

  • SSDEEP

    3072:n+ljDT+LbaRzegOBIIj6HLLYLCYJqvc1DGTx7lMNF4/x4IauJX9bkbZdr+u0YWDU:4DubaBBOBIIj6HLLYLCYJqvc1DslMNF7

Score
10/10
asyncratstormkittydefaultdiscoverypersistenceprivilege_escalationratspywarestealer

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/bot7653235193:AAErxT3f2W-qzTimIvxT1DS_F7PBHDXW3fc/sendMessage?chat_id=6804043127
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#.

    ratasyncrat
  • Asyncrat family
    asyncrat
  • StormKitty

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

    stealerstormkitty
  • StormKitty payload 1 IoCs
  • Stormkitty family
    stormkitty
  • Checks computer location settings 2 TTPs 1 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.

    spywarestealer
  • 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • 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.

    persistenceprivilege_escalation
  • 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.

    discovery
  • 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.

    discovery
  • 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.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2fb9490d65af4b5deb441bd62de2bb19d4a5c3bca5851395671030f89cfeff9N.exe
    "C:\Users\Admin\AppData\Local\Temp\b2fb9490d65af4b5deb441bd62de2bb19d4a5c3bca5851395671030f89cfeff9N.exe"
    1⤵
    • 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:2668
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:552
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4788
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show profile
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:4956
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3140
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1200
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1976
    • 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\b2fb9490d65af4b5deb441bd62de2bb19d4a5c3bca5851395671030f89cfeff9N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Wi-Fi Discovery

1
T1016.002

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\bc9bbf43e82f1ceee6d3ba1403766fce\msgid.dat
    Filesize

    3B

    MD5

    8a0e1141fd37fa5b98d5bb769ba1a7cc

    SHA1

    ff5ae4a7485c5c734d9e9cd8a8d875bf5ebddf60

    SHA256

    d6723fa996ced47773f2dea29cce9b11f951e6dafe321a84ac7d32791c3b4660

    SHA512

    d0eaefac8ff319a9d584366f08fe45247d86f09f070b4513ac3b02f82f33541e16b8fcc4b16b1a7a683cf5fc6d4422fb04653a0644a1f706f5183535d2885162

    Download Submit

  • C:\Users\Admin\AppData\Local\fda0a38000a2af762e53f92d990c653e\Admin@GLZCSNLK_en-US\Browsers\Firefox\Bookmarks.txt
    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

    Download Submit

  • C:\Users\Admin\AppData\Local\fda0a38000a2af762e53f92d990c653e\Admin@GLZCSNLK_en-US\System\Process.txt
    Filesize

    4KB

    MD5

    8d290570c57ba694a8c36c31bdbca3bb

    SHA1

    6bf6b7f4b30473afa85dcacc946fe23514feb547

    SHA256

    e9cf68ac0b7f0a1839e685ddfa201961c03c67bc40f5ee1b74fd9b7128e42b48

    SHA512

    6dc81da46037c30184e0bba79ddd0d85b68e048a2e28ed32c00f09334841e4717b311267278420df83604460abafee38a2b298237dbe65b1c4308100ff1aed79

    Download Submit

  • memory/2668-4-0x0000000006660000-0x0000000006C04000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/2668-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2668-5-0x0000000006190000-0x0000000006222000-memory.dmp

    Filesize

    584KB

    Download

  • memory/2668-3-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2668-2-0x00000000056F0000-0x0000000005756000-memory.dmp

    Filesize

    408KB

    Download

  • memory/2668-147-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2668-146-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2668-149-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2668-152-0x0000000007020000-0x000000000702A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/2668-1-0x0000000000E00000-0x0000000000E32000-memory.dmp

    Filesize

    200KB

    Download

  • memory/2668-158-0x0000000007710000-0x0000000007722000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2668-183-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2668-184-0x00000000081D0000-0x00000000081DA000-memory.dmp

    Filesize

    40KB

    Download