Windows Analysis Report
PO906-645S790768.xlam.xlsx

Overview

General Information

Sample name: PO906-645S790768.xlam.xlsx
Analysis ID: 1524794
MD5: 29a10a50eb01fe79324c9cd3dc663941
SHA1: a36ccbd34c01fed16e27a53751accab681941c5a
SHA256: ef561a4cdb2a47c93a4b84a825c5ef76cbaf89ae3e1d7bef8034c33e0b8a1c03
Tags: xlamxlsxuser-abuse_ch
Infos:

Detection

Score: 96
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: EQNEDT32.EXE connecting to internet
Document exploit detected (process start blacklist hit)
Office equation editor establishes network connection
Shellcode detected
Sigma detected: Equation Editor Network Connection
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Contains functionality to read the PEB
Document misses a certain OLE stream usually present in this Microsoft Office document type
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Office Equation Editor has been started
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
Yara signature match

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: PO906-645S790768.xlam.xlsx Avira: detected
Multi AV Scanner detection for domain / URL
Source: http://plugsbreakers.top/voicxe/mynnft.exe Virustotal: Detection: 7% Perma Link
Multi AV Scanner detection for submitted file
Source: PO906-645S790768.xlam.xlsx ReversingLabs: Detection: 66%
Source: PO906-645S790768.xlam.xlsx Virustotal: Detection: 47% Perma Link

Exploits
barindex
Office equation editor establishes network connection
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Network connect: IP: 66.63.187.171 Port: 80 Jump to behavior
Office Equation Editor has been started
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE "C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior

Software Vulnerabilities
barindex
Document exploit detected (process start blacklist hit)
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
Shellcode detected
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_035904F5 WinExec,ExitProcess, 1_2_035904F5
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_03590429 LoadLibraryW,URLDownloadToFileW, 1_2_03590429
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_035904AA URLDownloadToFileW, 1_2_035904AA
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_03590515 ExitProcess, 1_2_03590515
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_03590397 URLDownloadToFileW, 1_2_03590397
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_03590443 URLDownloadToFileW, 1_2_03590443
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_0359037E ExitProcess, 1_2_0359037E
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_035903B3 URLDownloadToFileW, 1_2_035903B3
Potential document exploit detected (performs DNS queries)
Source: global traffic DNS query: name: plugsbreakers.top
Potential document exploit detected (performs HTTP gets)
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Potential document exploit detected (unknown TCP traffic)
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Source: global traffic TCP traffic: 192.168.2.22:49163 -> 66.63.187.171:80
Source: global traffic TCP traffic: 66.63.187.171:80 -> 192.168.2.22:49163
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: ASN-QUADRANET-GLOBALUS ASN-QUADRANET-GLOBALUS
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET /voicxe/mynnft.exe HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: plugsbreakers.topConnection: Keep-Alive
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_03590429 LoadLibraryW,URLDownloadToFileW, 1_2_03590429
Source: global traffic HTTP traffic detected: GET /voicxe/mynnft.exe HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: plugsbreakers.topConnection: Keep-Alive
Source: global traffic DNS traffic detected: DNS query: plugsbreakers.top
Source: EQNEDT32.EXE, 00000001.00000002.510778876.00000000002E3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://plugsbreakers.top/voicxe/mynnft.exeQHU
Source: EQNEDT32.EXE, 00000001.00000002.510778876.00000000002E3000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://plugsbreakers.top/voicxe/mynnft.exeiEHT2T
Source: EQNEDT32.EXE, 00000001.00000002.510902224.0000000003590000.00000004.00000020.00020000.00000000.sdmp String found in binary or memory: http://plugsbreakers.top/voicxe/mynnft.exej

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: sheet1.xml, type: SAMPLE Matched rule: detects AutoLoad documents using LegacyDrawing Author: ditekSHen
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Memory allocated: 770B0000 page execute and read and write Jump to behavior
Document misses a certain OLE stream usually present in this Microsoft Office document type
Source: PO906-645S790768.xlam.xlsx OLE stream indicators for Word, Excel, PowerPoint, and Visio: all false
Yara signature match
Source: sheet1.xml, type: SAMPLE Matched rule: INDICATOR_XML_LegacyDrawing_AutoLoad_Document author = ditekSHen, description = detects AutoLoad documents using LegacyDrawing
Source: classification engine Classification label: mal96.expl.winXLSX@2/2@1/1
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\Desktop\~$PO906-645S790768.xlam.xlsx Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\AppData\Local\Temp\CVR82F4.tmp Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE File read: C:\Windows\System32\drivers\etc\hosts Jump to behavior
Source: PO906-645S790768.xlam.xlsx ReversingLabs: Detection: 66%
Source: PO906-645S790768.xlam.xlsx Virustotal: Detection: 47%
Source: unknown Process created: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE "C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: wow64win.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: wow64cpu.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: msi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: cryptsp.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: rpcrtremote.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: dwmapi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: version.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: secur32.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: winhttp.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: webio.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: iphlpapi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: winnsi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: dnsapi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: dhcpcsvc6.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: nlaapi.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: dhcpcsvc.dll Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Section loaded: rasadhlp.dll Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior
Source: PO906-645S790768.xlam.xlsx Initial sample: OLE indicators vbamacros = False
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE TID: 3376 Thread sleep time: -60000s >= -30000s Jump to behavior
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE API call chain: ExitProcess graph end node
Contains functionality to read the PEB
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Code function: 1_2_0359051C mov edx, dword ptr fs:[00000030h] 1_2_0359051C
Source: C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior
windows-stand
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1524794 Sample: PO906-645S790768.xlam.xlsx Startdate: 03/10/2024 Architecture: WINDOWS Score: 96 17 Multi AV Scanner detection for domain / URL 2->17 19 Malicious sample detected (through community Yara rule) 2->19 21 Antivirus / Scanner detection for submitted sample 2->21 23 5 other signatures 2->23 6 EXCEL.EXE 6 9 2->6         started        process3 file4 13 C:\Users\...\~$PO906-645S790768.xlam.xlsx, data 6->13 dropped 9 EQNEDT32.EXE 9 6->9         started        process5 dnsIp6 15 plugsbreakers.top 66.63.187.171, 49163, 80 ASN-QUADRANET-GLOBALUS United States 9->15 25 Office equation editor establishes network connection 9->25 signatures7
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
66.63.187.171
 plugsbreakers.top United States
8100 ASN-QUADRANET-GLOBALUS true

Contacted Domains

Name IP Active
plugsbreakers.top 66.63.187.171 true

Contacted URLs

Name Malicious Antivirus Detection Reputation
http://plugsbreakers.top/voicxe/mynnft.exe true unknown