Edit tour
Windows
Analysis Report
1da6f47_.exe
Overview
General Information
| Sample name: | 1da6f47_.exerenamed because original name is a hash value |
| Original sample name: | Zoom_cm_fo42anktZ9vvrZo4_m+mt8fLpQ1KJOK9IuQWcz7XsheCnEUYH4lSpg@MiUfiK5hJd9Bziab_kb5126f16e1da6f47_.exe |
| Analysis ID: | 1417317 |
| MD5: | 0e525f27ba5a4c4d0ebca64a61174da0 |
| SHA1: | c98cb1a9b04c685dafd486c2f51023653f4e763c |
| SHA256: | d7a06ef8fdaaafedea3b522b7411bede856bb1d0f18d8b7216c20255947ee517 |
| Infos: |  |
 | |
Detection
| Score: | 30 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 0% |
Compliance
| Score: | 36 |
| Range: | 0 - 100 |
Signatures
Contain functionality to detect virtual machines
Deletes itself after installation
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Tries to delay execution (extensive OutputDebugStringW loop)
Abnormal high CPU Usage
Contains capabilities to detect virtual machines
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 check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to communicate with device drivers
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 launch a program with higher privileges
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 which may be used to detect a debugger (GetProcessHeap)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
EXE planting / hijacking vulnerabilities found
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 evasive API chain checking for process token information
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
PE file contains executable resources (Code or Archives)
PE file contains more sections than normal
PE file contains sections with non-standard names
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive Operating System Information (via WMI, Win32_ComputerSystem, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Tries to load missing DLLs
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Classification
Analysis Advice
| Sample may offer command line options, please run it with the 'Execute binary with arguments' cookbook (it's possible that the command line switches require additional characters like: "-", "/", "--") |
| Sample monitors window changes (e.g. starting applications), analyze the sample with the 'Simulates keyboard and window changes' cookbook |
| Sample drops PE files which have not been started, submit dropped PE samples for a secondary analysis to Joe Sandbox |
| Sample tries to load a library which is not present or installed on the analysis machine, adding the library might reveal more behavior |
| Sample searches for specific file, try point organization specific fake files to the analysis machine |
- System is w10x64
1da6f47_.exe (PID: 7416 cmdline: "C:\Users\ user\Deskt op\1da6f47 _.exe" MD5: 0E525F27BA5A4C4D0EBCA64A61174DA0) - 1da6f47_.exe (PID: 7464 cmdline:
"C:\Users\ user\Deskt op\1da6f47 _.exe" /no rmal.privi ledge MD5: 0E525F27BA5A4C4D0EBCA64A61174DA0) 
Installer.exe (PID: 7588 cmdline: "C:\Users\ user\AppDa ta\Roaming \Zoom\Zoom Download\I nstaller.e xe" ZInsta ller --con f.mode=sil ent --ipc_ wnd=66706 MD5: 20315DDBA5A4CF044767EEBC6DDFD366) - Installer.exe (PID: 7908 cmdline:
"C:\Users\ user\AppDa ta\Roaming \Zoom\Zoom Download\I nstaller.e xe" /addfw exception --bin_home ="C:\Users \user\AppD ata\Roamin g\Zoom\bin " MD5: 20315DDBA5A4CF044767EEBC6DDFD366) - Zoom.exe (PID: 7936 cmdline:
"C:\Users\ user\AppDa ta\Roaming \Zoom\bin\ Zoom.exe" "--url=zoo mmtg://win .launch?h. domain=zoo m.us&h.pat h=join&act ion=join&c onfno=" MD5: 96FB95B78E6D809553D96AC38E0A2584) - Zoom.exe (PID: 7828 cmdline:
"C:\Users\ user\AppDa ta\Roaming \Zoom\bin\ Zoom.exe" --action=j oinbyno -- runaszvide o=TRUE MD5: 96FB95B78E6D809553D96AC38E0A2584) - zmC692.tmp (PID: 7956 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\zmC692 .tmp" -DAF 8C715436E4 4649F13126 98287E6A5= C:\Users\u ser\Deskto p\1da6f47_ .exe MD5: 0E525F27BA5A4C4D0EBCA64A61174DA0)
- cleanup
⊘No configs have been found
⊘No yara matches
| Source: | Author: frack113: | ||
⊘No Snort rule has matched
Click to jump to signature section
Show All Signature Results
| Source: | Code function: | 0_2_00731385 | |
| Source: | Code function: | 2_2_00731385 | |
| Source: | Code function: | 7_2_00007FF7E39B39DC | |
| Source: | Code function: | 7_2_00007FF7E39B3924 | |
| Source: | Code function: | 7_2_00007FF7E39B3960 | |
| Source: | Code function: | ||