Analysis
- max time kernel
150s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system - submitted
23/07/2024, 19:05
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win7-20240708-en
Behavioral task
behavioral3
Sample
XClient.exe
Resource
win10-20240611-en
Behavioral task
behavioral4
Sample
XClient.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
XClient.exe
Resource
win11-20240709-en
General
- Target XClient.exe
- Size 34KB
- Sample240723-xrmy2ashrj
- SHA256 12631c9b83e06b20eb1727eff06e2d6e264e8c58d62ea6ee5d351d195af3502a
- MD5 8bb9d79ea292fc23e600ebd7957e9333
- SHA1 4e78c73a5383f14edc669260524da4bdd5130c36
- SHA512 35101121210917d2dfd34e48f1b29e8806637b58cd18a0bbf93da1ee6decfac12ce55c0820e22c691287c7572bcdba69fc5d134ba4834c015aa553250d6383d8
- SSDEEP 384:+xYQVyqLSxEe4fIETsI5feQjFptmByujICLYFiiXmv50QAXnxF8QFhk58pkFyHBp:yrvaUuYsIQehkVFyr9eWTOjhmSDc
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
xworm
-
5.0
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insurance-helmet.gl.at.ply.gg:31388
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wbZwsAW8h4Ee9jvd
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Install_directory
%AppData%
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install_file
XClient.exe
Extracted
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asyncrat
-
Default
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127.0.0.1:6606
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127.0.0.1:7707
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127.0.0.1:8808
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https://api.telegram.org/bot6758433214:AAHsOKdFy4qDz6vRHO6UQUpRG85G-wZvC1Y/sendMessage?chat_id=6234857847
-
AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral4/memory/828-1-0x0000000000AE0000-0x0000000000AEE000-memory.dmp family_xworm - Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\muiaqz.exe" muiaqz.exe - StormKitty
StormKitty is an open source info stealer written in C#.
- StormKitty payload 2 IoCs
resource yara_rule behavioral4/files/0x0009000000023443-12.dat family_stormkitty behavioral4/memory/648-20-0x0000000000E40000-0x0000000000E72000-memory.dmp family_stormkitty - Async RAT payload 1 IoCs
resource yara_rule behavioral4/files/0x0009000000023443-12.dat family_asyncrat - 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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation XClient.exe - Executes dropped EXE 2 IoCs
pid Process 648 jafryz.exe 2600 muiaqz.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" XClient.exe Set value (str) \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\userini = "C:\\Users\\Admin\\AppData\\Local\\Temp\\muiaqz.exe" muiaqz.exe - Drops desktop.ini file(s) 8 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini jafryz.exe File opened for modification C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Documents\desktop.ini jafryz.exe File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Downloads\desktop.ini jafryz.exe File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\desktop.ini jafryz.exe File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Camera Roll\desktop.ini jafryz.exe File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Pictures\Saved Pictures\desktop.ini jafryz.exe File created C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini jafryz.exe File opened for modification C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Grabber\DRIVE-C\Users\Admin\Desktop\desktop.ini jafryz.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 61 pastebin.com 62 pastebin.com - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 53 icanhazip.com - Looks up geolocation information via web service
Uses a legitimate geolocation service to find the infected system's geolocation info.
- 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.
description ioc Process Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jafryz.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chcp.com Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language muiaqz.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language findstr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language chcp.com Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe - 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.
pid Process 4368 cmd.exe 1272 netsh.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 jafryz.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier jafryz.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 648 jafryz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 828 XClient.exe Token: SeDebugPrivilege 828 XClient.exe Token: SeDebugPrivilege 648 jafryz.exe - Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe 2600 muiaqz.exe - Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 828 wrote to memory of 648 828 XClient.exe 98 PID 828 wrote to memory of 648 828 XClient.exe 98 PID 828 wrote to memory of 648 828 XClient.exe 98 PID 648 wrote to memory of 4368 648 jafryz.exe 99 PID 648 wrote to memory of 4368 648 jafryz.exe 99 PID 648 wrote to memory of 4368 648 jafryz.exe 99 PID 4368 wrote to memory of 4068 4368 cmd.exe 101 PID 4368 wrote to memory of 4068 4368 cmd.exe 101 PID 4368 wrote to memory of 4068 4368 cmd.exe 101 PID 4368 wrote to memory of 1272 4368 cmd.exe 102 PID 4368 wrote to memory of 1272 4368 cmd.exe 102 PID 4368 wrote to memory of 1272 4368 cmd.exe 102 PID 4368 wrote to memory of 516 4368 cmd.exe 103 PID 4368 wrote to memory of 516 4368 cmd.exe 103 PID 4368 wrote to memory of 516 4368 cmd.exe 103 PID 648 wrote to memory of 1764 648 jafryz.exe 104 PID 648 wrote to memory of 1764 648 jafryz.exe 104 PID 648 wrote to memory of 1764 648 jafryz.exe 104 PID 1764 wrote to memory of 2136 1764 cmd.exe 106 PID 1764 wrote to memory of 2136 1764 cmd.exe 106 PID 1764 wrote to memory of 2136 1764 cmd.exe 106 PID 1764 wrote to memory of 388 1764 cmd.exe 107 PID 1764 wrote to memory of 388 1764 cmd.exe 107 PID 1764 wrote to memory of 388 1764 cmd.exe 107 PID 828 wrote to memory of 2600 828 XClient.exe 116 PID 828 wrote to memory of 2600 828 XClient.exe 116 PID 828 wrote to memory of 2600 828 XClient.exe 116
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828 -
C:\Users\Admin\AppData\Local\Temp\jafryz.exe"C:\Users\Admin\AppData\Local\Temp\jafryz.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:648 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All3⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Wi-Fi Discovery
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\SysWOW64\chcp.comchcp 650014⤵
- System Location Discovery: System Language Discovery
PID:4068
-
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C:\Windows\SysWOW64\netsh.exenetsh wlan show profile4⤵
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Wi-Fi Discovery
PID:1272
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C:\Windows\SysWOW64\findstr.exefindstr All4⤵
- System Location Discovery: System Language Discovery
PID:516
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-
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Windows\SysWOW64\chcp.comchcp 650014⤵
- System Location Discovery: System Language Discovery
PID:2136
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C:\Windows\SysWOW64\netsh.exenetsh wlan show networks mode=bssid4⤵
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:388
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C:\Users\Admin\AppData\Local\Temp\muiaqz.exe"C:\Users\Admin\AppData\Local\Temp\muiaqz.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:2600
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C:\Windows\explorer.exeexplorer.exe1⤵PID:4024
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Netsh Helper DLL
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\9dcc93f0bae5c7ad773a126bfe0df088\msgid.dat
- Size 1B
- SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
- MD5 cfcd208495d565ef66e7dff9f98764da
- SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
- SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\jafryz.exe
- Size 175KB
- SHA256 eb40ef4c4b8ba46300b9f95edc2f7f5ad4c7ea1e812580e3cda28b48f9ef0406
- MD5 9f2d773fd80c4da7ae3ce95da359f9dc
- SHA1 6cb470ad352e52ea0ec5f863ea4ee083e983caed
- SHA512 83a6af54e2d550e1b8f20b6709e7f06515e4c491cbc25ebf1f1e62533cb3f71ef9b58a453f64e04eace1b7cb06f55771907047eba4afa993d88453a74825850f
- SSDEEP 3072:qe8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTxSwARE+WpCc:a6ewwIwQJ6vKX0c5MlYZ0b2kK
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\muiaqz.exe
- Size 436KB
- SHA256 5b1267781df5fa980e338f4dacd44984955d92c438209e55088efd1b1820e9ac
- MD5 173a4279e79645180febd00f8a66fefe
- SHA1 92ed3111f7bf0f63e5089463b04c9dec0d2cd7e8
- SHA512 f572abb593a1ffb10f8b106ed9e17d47b2cce4955da965d6915069c3bc310b7365414d6fe49cc63aad3ab0375125afd04949b1cfb9299b27bf34d004c1c2da5f
- SSDEEP 12288:7MSU4joci8M6PW1GVFeFd60DFUyheOYM:ASUCpM2W1GvgmyeOv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\Browsers\Firefox\Bookmarks.txt
- Size 105B
- SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
- MD5 2e9d094dda5cdc3ce6519f75943a4ff4
- SHA1 5d989b4ac8b699781681fe75ed9ef98191a5096c
- SHA512 d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\f186255d016f52340afae7a7059a1883\Admin@LAGYLXAO_en-US\System\Process.txt
- Size 4KB
- SHA256 88ff394194d497e27d3db71a608b146df3e5a89482068c638ba6f75b3ac203a7
- MD5 8244167804bbe385cb60a9ad11d15574
- SHA1 a4a38d1b1283161d84d433548fec973a83c13cb0
- SHA512 f03be75705b43eb4768c9dac16cac064af5e6798dee323efa8207b45d2e6afee71f03b2d3a15c004d01cca159aefd9ff598f6858c901d754fcb78a9160f17505
- SSDEEP 48:G9FNZVQrEbZglpPrlyybcQb1uOtYFMPLC2v:sZwEgpPrlyywQB7tYqPLCI
- MD5 SHA1 SHA512 SSDEEP