Windows
Analysis Report
VirtualPR.exe
Overview
General Information
Detection
DanaBot
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus detection for dropped file
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Yara detected AntiVM3
Yara detected DanaBot stealer dll
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code contains very large strings
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Compiles code for process injection (via .Net compiler)
Compiles code to access protected / encrypted code
Found API chain indicative of debugger detection
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
May use the Tor software to hide its network traffic
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Silenttrinity Stager Msbuild Activity
Writes to foreign memory regions
Abnormal high CPU Usage
Allocates memory with a write watch (potentially for evading sandboxes)
Binary contains a suspicious time stamp
Compiles C# or VB.Net code
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
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)
Contains long sleeps (>= 3 min)
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
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 decision node followed by non-executed suspicious APIs
Found dropped PE file which has not been started or loaded
Found evasive API chain checking for process token information
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries information about the installed CPU (vendor, model number etc)
Queries the installation date of Windows
Queries the product ID of Windows
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: Dynamic .NET Compilation Via Csc.EXE
Stores files to the Windows start menu directory
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Yara detected Credential Stealer
Yara signature match
Classification
- System is w10x64
VirtualPR.exe (PID: 2184 cmdline:
"C:\Users\ user\Deskt op\Virtual PR.exe" MD5: 283C93984009435B7847EBA249C34122) csc.exe (PID: 4436 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\csc .exe" /noc onfig /ful lpaths @"C :\Users\us er\AppData \Local\Tem p\wbuje1zp \wbuje1zp. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 5948 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 64 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\cvtr es.exe /NO LOGO /READ ONLY /MACH INE:IX86 " /OUT:C:\Us ers\user\A ppData\Loc al\Temp\RE S6976.tmp" "c:\Users \user\AppD ata\Local\ Temp\wbuje 1zp\CSCF31 01B1DB5FD4 234B8D9E3A 32E163AE3. TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csc.exe (PID: 1616 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\csc .exe" /noc onfig /ful lpaths @"C :\Users\us er\AppData \Local\Tem p\saruzovf \saruzovf. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 3472 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 5196 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\cvtr es.exe /NO LOGO /READ ONLY /MACH INE:IX86 " /OUT:C:\Us ers\user\A ppData\Loc al\Temp\RE S6F42.tmp" "c:\Users \user\AppD ata\Local\ Temp\saruz ovf\CSC924 7E5327A274 F0EA677894 2D33863E.T MP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) MSBuild.exe (PID: 3236 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 6416 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 3516 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 4016 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232)
VirtualPR.exe (PID: 2052 cmdline:
"C:\Window s\Temp\Vir tualPR.exe " MD5: 283C93984009435B7847EBA249C34122) csc.exe (PID: 672 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\csc .exe" /noc onfig /ful lpaths @"C :\Users\us er\AppData \Local\Tem p\doceyppt .cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 4412 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 5376 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\cvtr es.exe /NO LOGO /READ ONLY /MACH INE:IX86 " /OUT:C:\Us ers\user\A ppData\Loc al\Temp\RE SAE8E.tmp" "c:\Users \user\AppD ata\Local\ Temp\CSC51 02464C238E 498091ADEB 255F7180.T MP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csc.exe (PID: 1824 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\csc .exe" /noc onfig /ful lpaths @"C :\Users\us er\AppData \Local\Tem p\ouz2pkol .cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 5692 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 5448 cmdline:
C:\Windows \Microsoft .NET\Frame work\v4.0. 30319\cvtr es.exe /NO LOGO /READ ONLY /MACH INE:IX86 " /OUT:C:\Us ers\user\A ppData\Loc al\Temp\RE SB6AC.tmp" "c:\Users \user\AppD ata\Local\ Temp\CSCEC 34565AAA02 4FAC8226FC 17CD3A3374 .TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) MSBuild.exe (PID: 3884 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 2728 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
DanaBot | Proofpoints describes DanaBot as the latest example of malware focused on persistence and stealing useful information that can later be monetized rather than demanding an immediate ransom from victims. The social usering in the low-volume DanaBot campaigns we have observed so far has been well-crafted, again pointing to a renewed focus on quality over quantity in email-based threats. DanaBots modular nature enables it to download additional components, increasing the flexibility and robust stealing and remote monitoring capabilities of this banker. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_DanaBot_stealer_dll | Yara detected DanaBot stealer dll | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_DanaBot_stealer_dll | Yara detected DanaBot stealer dll | Joe Security | ||
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
Click to see the 15 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_DanaBot_stealer_dll | Yara detected DanaBot stealer dll | Joe Security | ||
INDICATOR_SUSPICIOUS_GENInfoStealer | Detects executables containing common artifcats observed in infostealers | ditekSHen |
| |
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_DanaBot_stealer_dll | Yara detected DanaBot stealer dll | Joe Security | ||
Click to see the 4 entries |
System Summary |
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Source: | Author: Kiran kumar s, oscd.community: |
Source: | Author: Florian Roth (Nextron Systems), X__Junior (Nextron Systems): |
Source: | Author: frack113: |
Data Obfuscation |
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Source: | Author: Joe Security: |
Source: | Author: Joe Security: |
⊘No Suricata rule has matched
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Avira: | ||
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Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
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Source: | Integrated Neural Analysis Model: |
Source: | Code function: | 22_2_03AA2198 | |
Source: | Code function: | 22_2_03AA10D4 | |
Source: | Code function: | 22_2_03AA07D8 | |
Source: | Code function: | 22_2_03AA2698 | |
Source: | Code function: | 22_2_03AA14B8 | |
Source: | Code function: | 22_2_03AA0910 | |
Source: | Code function: | 22_2_03AA2898 | |
Source: | Code function: | 22_2_03AA0CC4 | |
Source: | Code function: | 22_2_03AA22E5 | |
Source: | Code function: | 22_2_03AA2164 | |
Source: | Code function: | 22_2_03AA1035 | |
Source: | Code function: | 22_2_03AA1071 | |
Source: | Code function: | 22_2_03AA1053 | |
Source: | Code function: | 22_2_03AA143C | |
Source: | Code function: | 22_2_03AA1401 | |
Source: | Code function: | 22_2_03AA147A | |
Source: | Code function: | 22_2_03AA145C | |
Source: | Code function: | 22_2_03AA0BE3 | |
Source: | Code function: | 22_2_03AA0BC5 | |
Source: | Code function: | 22_2_03AA2ABD | |
Source: | Code function: | 22_2_03AA2A9F | |
Source: | Code function: | 22_2_03AA188C | |
Source: | Code function: | 22_2_03AA283C | |
Source: | Code function: | 22_2_03AA1830 | |
Source: | Code function: | 22_2_03AA186E | |
Source: | Code function: | 22_2_03AA184E | |
Source: | Code function: | 22_2_03AA285A | |
Source: | Code function: | 22_2_03AA0FF7 | |
Source: | Code function: | 22_2_03AA0C25 | |
Source: | Code function: | 22_2_03AA0C01 | |
Source: | Code function: | 22_2_03AA0C61 | |
Source: | Code function: | 22_2_03AA0C43 |
Source: | Static PE information: |
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Source: | Binary string: |
Source: | Code function: | 22_2_035DE210 | |
Source: | Code function: | 22_2_035F3204 | |
Source: | Code function: | 22_2_035F36F4 | |
Source: | Code function: | 22_2_035DDC44 |
Source: | Code function: | 22_2_035F1324 |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
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Source: | File opened: | Jump to behavior |
Source: | HTTP traffic detected: |