Windows
Analysis Report
zsd5jgZ9LU.exe
Overview
General Information
Sample name: | zsd5jgZ9LU.exerenamed because original name is a hash value |
Original sample name: | b2da9370e2ab2ac402d886e54dd74f82.exe |
Analysis ID: | 1639964 |
MD5: | b2da9370e2ab2ac402d886e54dd74f82 |
SHA1: | a311ccd3697cb9b80a19569a84a21c54a9e6ad7b |
SHA256: | 8e42ddd51dd4c55d48b38b2f346d2be2c3d5ffd3d8a30df79f7189777eab69ad |
Tags: | exeuser-abuse_ch |
Infos: | |
Detection
DanaBot
Score: | 100 |
Range: | 0 - 100 |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
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: Rare Remote Thread Creation By Uncommon Source Image
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
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 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
zsd5jgZ9LU.exe (PID: 7064 cmdline:
"C:\Users\ user\Deskt op\zsd5jgZ 9LU.exe" MD5: B2DA9370E2AB2AC402D886E54DD74F82) csc.exe (PID: 7088 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\tkirzpgp \tkirzpgp. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 7096 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 6240 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 S2DB.tmp" "c:\Users\ user\AppDa ta\Local\T emp\tkirzp gp\CSC51B3 D3626D6842 D5B72D4429 8C293C.TMP " MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csc.exe (PID: 6420 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\xo2xvbmi \xo2xvbmi. cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 6436 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 6608 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 S888.tmp" "c:\Users\ user\AppDa ta\Local\T emp\xo2xvb mi\CSC77F6 16922C5D4C A187853A69 BCCD35F9.T MP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) MSBuild.exe (PID: 6420 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 6560 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 6436 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232)
zsd5jgZ9LU.exe (PID: 7068 cmdline:
"C:\Window s\Temp\zsd 5jgZ9LU.ex e" MD5: B2DA9370E2AB2AC402D886E54DD74F82) csc.exe (PID: 6560 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\qul4nop0 .cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 6708 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 336 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 S464D.tmp" "c:\Users \user\AppD ata\Local\ Temp\CSC28 6D3A74DE56 4A65A478D1 CA1432C8C. TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) csc.exe (PID: 612 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\5wfb2epz .cmdline" MD5: EB80BB1CA9B9C7F516FF69AFCFD75B7D) conhost.exe (PID: 3484 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) cvtres.exe (PID: 3532 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 S4DCE.tmp" "c:\Users \user\AppD ata\Local\ Temp\CSCC0 6E5127D036 4BB483FE72 62E1E39CC8 .TMP" MD5: 70D838A7DC5B359C3F938A71FAD77DB0) MSBuild.exe (PID: 2656 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 4460 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\MSB uild.exe" MD5: 8FDF47E0FF70C40ED3A17014AEEA4232) MSBuild.exe (PID: 1580 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 engineering 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 | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_DanaBot_stealer_dll | Yara detected DanaBot stealer dll | Joe Security | ||
Click to see the 13 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: Perez Diego (@darkquassar), oscd.community: |
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: |
Source: | Avira URL Cloud: |
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Source: | Avira: |
Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
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Source: | Integrated Neural Analysis Model: |
Source: | Code function: | 27_2_038103F0 | |
Source: | Code function: | 27_2_0381003C | |
Source: | Code function: | 27_2_03810BE4 | |
Source: | Code function: | 27_2_038118D8 | |
Source: | Code function: | 27_2_03810800 | |
Source: | Code function: | 27_2_03811FEC | |
Source: | Code function: | 27_2_0380FF04 | |
Source: | Code function: | 27_2_03811DEC | |
Source: | Code function: | 27_2_0381038D | |
Source: | Code function: | 27_2_0381030F | |
Source: | Code function: | 27_2_0381032D | |
Source: | Code function: | 27_2_03810351 | |
Source: | Code function: | 27_2_0381036F | |
Source: | Code function: | 27_2_038102F1 | |
Source: | Code function: | 27_2_03812211 | |
Source: | Code function: | 27_2_038121F3 | |
Source: | Code function: | 27_2_0381079D | |
Source: | Code function: | 27_2_03810723 | |
Source: | Code function: | 27_2_03810741 | |
Source: | Code function: | 27_2_03810761 | |
Source: | Code function: | 27_2_0381077F | |
Source: | Code function: | 27_2_03810BA6 | |
Source: | Code function: | 27_2_03810B2D | |
Source: | Code function: | 27_2_03810B68 | |
Source: | Code function: | 27_2_03811A25 | |
Source: | Code function: | 27_2_03811F90 | |
Source: | Code function: | 27_2_03810F9A | |
Source: | Code function: | 27_2_03811FAE | |
Source: | Code function: | 27_2_03810FB8 | |
Source: | Code function: | 27_2_03810F5C | |
Source: | Code function: | 27_2_03810F7A |
Source: | HTTPS traffic detected: |
Source: | Static PE information: |
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Source: | Code function: | 27_2_0334E210 | |
Source: | Code function: | 27_2_03363204 | |
Source: | Code function: | 27_2_033636F4 | |
Source: | Code function: | 27_2_0334DC44 |
Source: | Code function: | 27_2_03361324 |
Source: | File opened: | Jump to behavior | ||
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: |