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Windows
Analysis Report
xWnpPJbKGK.exe
Overview
General Information
Sample name: | xWnpPJbKGK.exerenamed because original name is a hash value |
Original sample name: | 4dfe53d9b410831e0b01ed3c6149d427.exe |
Analysis ID: | 1579726 |
MD5: | 4dfe53d9b410831e0b01ed3c6149d427 |
SHA1: | 03875faf45a3177c63feb6257d1ad23de1e3726d |
SHA256: | 75e60b27b6632c5485cd138a5fc08116f59da83ae617b08f6d7be778d7dba3ee |
Tags: | exeuser-abuse_ch |
Infos: | |
Detection
Cryptbot
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Cryptbot
AI detected suspicious sample
Drops large PE files
Hides threads from debuggers
Leaks process information
Machine Learning detection for sample
PE file contains section with special chars
Sigma detected: Suspicious Scheduled Task Creation Involving Temp Folder
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
AV process strings found (often used to terminate AV products)
Abnormal high CPU Usage
Checks for debuggers (devices)
Checks if the current process is being debugged
Contains capabilities to detect virtual machines
Contains functionality to dynamically determine API calls
Detected potential crypto function
Drops PE files
Entry point lies outside standard sections
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
HTTP GET or POST without a user agent
IP address seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
One or more processes crash
PE file contains an invalid checksum
PE file contains sections with non-standard names
Queries information about the installed CPU (vendor, model number etc)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Browser Started with Remote Debugging
Sigma detected: Suspicious Schtasks From Env Var Folder
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Classification
- System is w10x64
- xWnpPJbKGK.exe (PID: 4900 cmdline:
"C:\Users\ user\Deskt op\xWnpPJb KGK.exe" MD5: 4DFE53D9B410831E0B01ED3C6149D427) - chrome.exe (PID: 8148 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\chrome .exe" --re mote-debug ging-port= 9222 --pro file-direc tory="Defa ult" MD5: 5BBFA6CBDF4C254EB368D534F9E23C92) - chrome.exe (PID: 7304 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\chrome .exe" --ty pe=utility --utility -sub-type= network.mo jom.Networ kService - -lang=en-U S --servic e-sandbox- type=none --mojo-pla tform-chan nel-handle =2548 --fi eld-trial- handle=228 4,i,504844 4204402155 501,556466 2191355737 11,262144 /prefetch: 8 MD5: 5BBFA6CBDF4C254EB368D534F9E23C92) - service123.exe (PID: 8068 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\servic e123.exe" MD5: D5402C30691836233EA9AD8721B8F3C2) - schtasks.exe (PID: 8088 cmdline:
"C:\Window s\System32 \schtasks. exe" /crea te /tn "Se rviceData4 " /tr "C:\ Users\user \AppData\L ocal\Temp\ /service12 3.exe" /st 00:01 /du 9800:59 / sc once /r i 1 /f MD5: 48C2FE20575769DE916F48EF0676A965) - conhost.exe (PID: 5760 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WerFault.exe (PID: 8144 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 4 900 -s 138 0 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- service123.exe (PID: 8140 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 6040 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 3136 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 6420 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 5864 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 6836 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- service123.exe (PID: 4552 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\/servic e123.exe MD5: D5402C30691836233EA9AD8721B8F3C2)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
CryptBot | A typical infostealer, capable of obtaining credentials for browsers, crypto currency wallets, browser cookies, credit cards, and creates screenshots of the infected system. All stolen data is bundled into a zip-file that is uploaded to the c2. | No Attribution |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Cryptbot | Yara detected Cryptbot | Joe Security |
System Summary |
---|
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: pH-T (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-23T08:11:24.415484+0100 | 2054350 | 1 | A Network Trojan was detected | 192.168.2.6 | 49797 | 185.121.15.192 | 80 | TCP |
2024-12-23T08:11:26.332156+0100 | 2054350 | 1 | A Network Trojan was detected | 192.168.2.6 | 49806 | 185.121.15.192 | 80 | TCP |
2024-12-23T08:11:35.580066+0100 | 2054350 | 1 | A Network Trojan was detected | 192.168.2.6 | 49839 | 185.121.15.192 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: |
Source: | ReversingLabs: | |||
Source: | Virustotal: | Perma Link |
Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: |
Source: | Code function: | 21_2_00E115B0 |
Source: | Binary or memory string: | memstr_0ab431a3-1 |
Source: | Static PE information: |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Source: | Code function: | 21_2_00E181E0 |
Source: | Memory has grown: |
Networking |
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Source: | Suricata IDS: | ||
Source: | Suricata IDS: | ||
Source: | Suricata IDS: |
Source: | HTTP traffic detected: | ||
Source: | HTTP traffic detected: |