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Windows Analysis Report
Order_YK240612-01D(estimate).scr.exe

Overview

General Information

Sample name:Order_YK240612-01D(estimate).scr.exe
Analysis ID:1471405
MD5:70b68d25c88c6d1edfa32aa617f67393
SHA1:1b04e59a4496d9db4f90f4dc55b5e816cfff3de5
SHA256:d0755a4410b30758349877c74392e03b018eb7c8520852d4cae3f2f243d33c7a
Tags:exeRemcosRAT
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
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
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Delayed program exit found
Drops PE files to the document folder of the user
Drops PE files with a suspicious file extension
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Uses cmd line tools excessively to alter registry or file data
AV process strings found (often used to terminate AV products)
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains functionality for read data from the clipboard
Contains functionality to check if a debugger is running (IsDebuggerPresent)
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)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
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 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 sleep (evasive loops) to hinder dynamic analysis
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: Direct Autorun Keys Modification
Sigma detected: Execution of Suspicious File Type Extension
Sigma detected: Potential Persistence Attempt Via Run Keys Using Reg.EXE
Too many similar processes found
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Uses reg.exe to modify the Windows registry
Yara signature match

Classification

  • System is w10x64
  • Order_YK240612-01D(estimate).scr.exe (PID: 3128 cmdline: "C:\Users\user\Desktop\Order_YK240612-01D(estimate).scr.exe" MD5: 70B68D25C88C6D1EDFA32AA617F67393)
    • cmd.exe (PID: 1532 cmdline: cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 4024 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
      • reg.exe (PID: 7100 cmdline: REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" MD5: CDD462E86EC0F20DE2A1D781928B1B0C)
    • cmd.exe (PID: 5276 cmdline: cmd /c Copy "C:\Users\user\Desktop\Order_YK240612-01D(estimate).scr.exe" "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 3876 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
  • Order_YK240612-01D(estimate).scr.pif (PID: 7100 cmdline: "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" MD5: 70B68D25C88C6D1EDFA32AA617F67393)
    • cmd.exe (PID: 2508 cmdline: cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr.pif" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 1372 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
      • reg.exe (PID: 2624 cmdline: REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr.pif" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: CDD462E86EC0F20DE2A1D781928B1B0C)
    • cmd.exe (PID: 3852 cmdline: cmd /c Copy "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 1476 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
  • Order_YK240612-01D(estimate).scr.pif (PID: 5788 cmdline: "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" MD5: 70B68D25C88C6D1EDFA32AA617F67393)
    • cmd.exe (PID: 4476 cmdline: cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr.pif" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 6008 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
      • reg.exe (PID: 3852 cmdline: REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Order_YK240612-01D(estimate).scr.pif" /t REG_SZ /F /D "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: CDD462E86EC0F20DE2A1D781928B1B0C)
    • cmd.exe (PID: 1848 cmdline: cmd /c Copy "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif" "C:\Users\user\Documents\Order_YK240612-01D(estimate).scr.pif.pif" MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)
      • conhost.exe (PID: 6436 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)