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Windows
Analysis Report
fNzx1wx8tL.exe
Overview
General Information
| Sample name: | fNzx1wx8tL.exerenamed because original name is a hash value |
| Original sample name: | b611b18150ff90f659198e46c7f2b74f.exe |
| Analysis ID: | 1543210 |
| MD5: | b611b18150ff90f659198e46c7f2b74f |
| SHA1: | bb6bcaf535bddc8b793a8fa890bbbe7a33290faa |
| SHA256: | 0fbad12595c3ecd37ed2249d25161c3935485a2c761c104e58973841becd0517 |
| Tags: | exeuser-abuse_ch |
| Infos: |   |
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Detection
MicroClip
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Benign windows process drops PE files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Yara detected MicroClip
AI detected suspicious sample
Changes the view of files in windows explorer (hidden files and folders)
Contain functionality to detect virtual machines
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Found API chain indicative of debugger detection
Found hidden mapped module (file has been removed from disk)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Overwrites Mozilla Firefox settings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Binary contains a suspicious time stamp
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 if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to detect virtual machines (SLDT)
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 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 clipboard data
Contains functionality to record screenshots
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a process in suspended mode (likely to inject code)
Creates a start menu entry (Start Menu\Programs\Startup)
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 evaded block containing many API calls
Found evasive API chain (may stop execution after checking a module file name)
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
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE file contains sections with non-standard names
PE file does not import any functions
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: Startup Folder File Write
Sigma detected: Uncommon Svchost Parent Process
Stores files to the Windows start menu directory
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)
Yara signature match
Classification
- System is w10x64
fNzx1wx8tL.exe (PID: 7288 cmdline: "C:\Users\ user\Deskt op\fNzx1wx 8tL.exe" MD5: B611B18150FF90F659198E46C7F2B74F) - svchost.exe (PID: 7312 cmdline:
C:\Windows \system32\ svchost.ex e -k DcomL aunch -p - s LSM MD5: B7F884C1B74A263F746EE12A5F7C9F6A) 
explorer.exe (PID: 2580 cmdline: C:\Windows \Explorer. EXE MD5: 662F4F92FDE3557E86D110526BB578D5) - 8711E746C94A2518020777.exe (PID: 7488 cmdline:
"C:\Users\ user\AppDa ta\Roaming \8711E746C 94A2518020 777\8711E7 46C94A2518 020777.exe " MD5: B611B18150FF90F659198E46C7F2B74F) - svchost.exe (PID: 7552 cmdline:
C:\Windows \system32\ svchost.ex e -k DcomL aunch -p - s LSM MD5: B7F884C1B74A263F746EE12A5F7C9F6A) - 8711E746C94A2518020777.exe (PID: 7652 cmdline:
"C:\Users\ user\AppDa ta\Roaming \8711E746C 94A2518020 777\8711E7 46C94A2518 020777.exe " MD5: B611B18150FF90F659198E46C7F2B74F) - svchost.exe (PID: 7688 cmdline:
C:\Windows \system32\ svchost.ex e -k DcomL aunch -p - s LSM MD5: B7F884C1B74A263F746EE12A5F7C9F6A) 
A91B.tmp.zx.exe (PID: 7740 cmdline: "C:\Users\ user\AppDa ta\Local\T emp\A91B.t mp.zx.exe" MD5: F6FB58FFDB5677FAB17B5A8195C8D09B) - A91B.tmp.zx.exe (PID: 7884 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\A91B.t mp.zx.exe" MD5: F6FB58FFDB5677FAB17B5A8195C8D09B) - 8711E746C94A2518020777.exe (PID: 7932 cmdline:
"C:\Users\ user\AppDa ta\Roaming \8711E746C 94A2518020 777\8711E7 46C94A2518 020777.exe " MD5: B611B18150FF90F659198E46C7F2B74F) - svchost.exe (PID: 7956 cmdline:
C:\Windows \system32\ svchost.ex e -k DcomL aunch -p - s LSM MD5: B7F884C1B74A263F746EE12A5F7C9F6A)
- cleanup
⊘No configs have been found
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| Click to see the 1 entries | ||||
| Source | Rule | Description | Author | Strings |
|---|---|---|---|---|
| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| INDICATOR_SUSPICIOUS_ReflectiveLoader | detects Reflective DLL injection artifacts | ditekSHen |
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| Click to see the 5 entries | ||||
System Summary |   |
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| Source: | Author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split): | ||
| Source: | Author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research): | ||
| Source: | Author: Florian Roth (Nextron Systems): | ||
| Source: | Author: vburov: | ||
| Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
|---|---|---|---|---|---|---|---|---|
| 2024-10-27T12:59:14.069490+0100 | 2019714 | 2 | Potentially Bad Traffic | 192.168.2.4 | 49737 | 176.111.174.140 | 80 | TCP |
| Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
|---|---|---|---|---|---|---|---|---|
| 2024-10-27T12:59:03.428789+0100 | 2803270 | 2 | Potentially Bad Traffic | 192.168.2.4 | 49732 | 176.111.174.140 | 80 | TCP |
| 2024-10-27T12:59:07.925518+0100 | 2803270 | 2 | Potentially Bad Traffic | 192.168.2.4 | 49733 | 176.111.174.140 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection | |
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| Source: | ReversingLabs: | ||
| Source: | ReversingLabs: | ||
| Source: | Integrated Neural Analysis Model: | ||
| Source: | Joe Sandbox ML: | ||
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| Source: | Code function: | 0_2_00007FF6E17059EC | |
| Source: | Code function: | 2_2_0FC06AE0 | |
| Source: | Code function: | 3_2_00007FF699AB59EC | |
| Source: | Code function: | 4_2_00007FF7536F59EC | |
| Source: | Code function: | 7_2_00007FF736B559EC | |
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| Source: | Code function: | 11_2_00007FF632DA85A0 | |
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| Source: | Code function: | 11_2_00007FFE01343280 | |
| Source: | Code function: | 11_2_00007FFE0134303C | |
| Source: | Code function: | 13_2_00007FF7F4E759EC | |
Networking | |
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| Source: | Network Connect: | Jump to behavior | ||
| Source: | HTTP traffic detected: | ||