Windows Analysis Report
Finalization-report-04-19-2024-06_23_25.csv

Overview

General Information

Sample name: Finalization-report-04-19-2024-06_23_25.csv
Analysis ID: 1430576
MD5: 1a01789f1d85edc344da33e03bee227f
SHA1: 40451aee35e6c5e438c8cbdb7cc7b027a4ab2e91
SHA256: 81128fb4af8c44978e811026134a9d0687f445f17d68e5fb8bac24b4f57ad546
Infos:

Detection

Score: 3
Range: 0 - 100
Whitelisted: false
Confidence: 80%

Signatures

Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Excel Network Connections
Sigma detected: Suspicious Office Outbound Connections

Classification

Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE File opened: C:\Program Files (x86)\Microsoft Office\root\vfs\SystemX86\MSVCR100.dll Jump to behavior
Source: unknown HTTPS traffic detected: 52.123.247.30:443 -> 192.168.2.4:49735 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49756 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49754 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49755 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49753 version: TLS 1.2
Source: excel.exe Memory has grown: Private usage: 1MB later: 70MB
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 13.107.246.41 13.107.246.41
Source: Joe Sandbox View IP Address: 13.107.246.41 13.107.246.41
JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: a0e9f5d64349fb13191bc781f81f42e1
Source: global traffic HTTP traffic detected: GET /config/v2/Office/excel/16.0.16827.20130/Production/CC?&EcsCanary=1&Clientid=%7b7423E565-A626-48D4-A186-93E31FBB3F25%7d&Application=excel&Platform=win32&Version=16.0.16827.20130&MsoVersion=16.0.16827.20130&ProcessName=excel.exe&Audience=Production&Build=ship&Architecture=x86&Language=en-US&SubscriptionLicense=false&PerpetualLicense=2019&LicenseCategory=7&LicenseSKU=ProPlus2019Retail&OsVersion=10.0&OsBuild=19045&Channel=CC&InstallType=C2R&SessionId=%7b7D3C82C5-B22B-4277-A537-C718EBD25F17%7d&LabMachine=false HTTP/1.1Connection: Keep-AliveAccept-Encoding: gzipIf-None-Match: "NBZZ0yPtnIZxj0NZ+as1PGyLKGN8GOvVL0RXS5Wllhw="User-Agent: Microsoft Office 2014DisableExperiments: falseX-ECS-Client-Last-Telemetry-Events: ecs_client_library_name=MSO,ecs_client_app_name=Office,ecs_client_version=16.0.16827.20130Host: ecs.office.com
Source: global traffic HTTP traffic detected: GET /rules/rule324002v5s19.xml HTTP/1.1Connection: Keep-AliveAccept-Encoding: gzipUser-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Excel 16.0.16827; Pro)Host: otelrules.azureedge.net
Source: global traffic HTTP traffic detected: GET /rules/rule170012v10s19.xml HTTP/1.1Connection: Keep-AliveAccept-Encoding: gzipUser-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Excel 16.0.16827; Pro)Host: otelrules.azureedge.net
Source: global traffic HTTP traffic detected: GET /rules/rule490016v3s19.xml HTTP/1.1Connection: Keep-AliveAccept-Encoding: gzipUser-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Excel 16.0.16827; Pro)Host: otelrules.azureedge.net
Source: global traffic HTTP traffic detected: GET /rules/rule63067v4s19.xml HTTP/1.1Connection: Keep-AliveAccept-Encoding: gzipUser-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Excel 16.0.16827; Pro)Host: otelrules.azureedge.net
Source: 57C8EDB95DF3F0AD4EE2DC2B8CFD4157.0.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49755
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49754
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49753
Source: unknown Network traffic detected: HTTP traffic on port 49754 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 49735 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49735
Source: unknown Network traffic detected: HTTP traffic on port 49753 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 49755 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 49756 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49756
Source: unknown HTTPS traffic detected: 52.123.247.30:443 -> 192.168.2.4:49735 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49756 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49754 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49755 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.107.246.41:443 -> 192.168.2.4:49753 version: TLS 1.2
Source: classification engine Classification label: clean3.winCSV@3/1@0/2
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE File created: C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\mso81F7.tmp Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE File created: C:\Users\user\AppData\Local\Temp\{7D3C82C5-B22B-4277-A537-C718EBD25F17} - OProcSessId.dat Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE File read: C:\Users\desktop.ini Jump to behavior
Source: unknown Process created: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE "C:\Program Files (x86)\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process created: C:\Windows\splwow64.exe C:\Windows\splwow64.exe 12288
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process created: C:\Windows\splwow64.exe C:\Windows\splwow64.exe 12288 Jump to behavior
Source: Window Recorder Window detected: More than 3 window changes detected
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Key opened: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Common Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE File opened: C:\Program Files (x86)\Microsoft Office\root\vfs\SystemX86\MSVCR100.dll Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: FAILCRITICALERRORS | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\splwow64.exe Process information set: NOALIGNMENTFAULTEXCEPT | NOOPENFILEERRORBOX Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Windows\splwow64.exe Window / User API: threadDelayed 724 Jump to behavior
Sample execution stops while process was sleeping (likely an evasion)
Source: C:\Windows\splwow64.exe Last function: Thread delayed
Source: C:\Windows\splwow64.exe Last function: Thread delayed
Source: C:\Windows\splwow64.exe Thread delayed: delay time: 120000 Jump to behavior
Source: C:\Windows\splwow64.exe Thread delayed: delay time: 120000 Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE Process information queried: ProcessInformation Jump to behavior
windows-stand
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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 process2 2 Behavior Graph ID: 1430576 Sample: Finalization-report-04-19-2... Startdate: 23/04/2024 Architecture: WINDOWS Score: 3 5 EXCEL.EXE 139 61 2->5         started        dnsIp3 10 part-0013.t-0009.t-msedge.net 13.107.246.41, 443, 49753, 49754 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 5->10 12 svc.ha-teams.office.com 52.123.247.30, 443, 49735 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 5->12 8 splwow64.exe 5->8         started        process4
  • 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
13.107.246.41
 part-0013.t-0009.t-msedge.net United States
8068 MICROSOFT-CORP-MSN-AS-BLOCKUS false
52.123.247.30
 svc.ha-teams.office.com United States
8075 MICROSOFT-CORP-MSN-AS-BLOCKUS false

Contacted Domains

Name IP Active
part-0013.t-0009.t-msedge.net 13.107.246.41 true
svc.ha-teams.office.com 52.123.247.30 true