Malicious PDF — malware analysis report

Static analysis result for SHA-256 290e1ce78261778c…

MALICIOUS

PDF

78.2 KB Created: 2021-05-25 01:02:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 593e57b4e5825b53dd85e7b471f06d71 SHA-1: af58d0a6d53c44680a918e9c6b51733169c8b6bf SHA-256: 290e1ce78261778c6969672bff488eccbae23bc043498360fdd1f932cbdacb6f
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9401

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://yafferge.ru/strik?utm_term=how+to+draw+princess+elsa+step+by+step+easy In PDF document text
    • https://fatopozan.weebly.com/uploads/1/3/4/5/134581496/7152094.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374009/normal_6036f51519e76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393369/normal_603721c58978e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410222/normal_60068eac19109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471455/normal_5fdbc5601fa3e.pdfIn PDF document text
    • https://tuxotise.weebly.com/uploads/1/3/1/3/131379496/9353825.pdfIn PDF document text
    • https://simisasokudu.weebly.com/uploads/1/3/4/2/134235492/nugosu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379034/normal_5fcee7de9bb09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497368/normal_60527020919a0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58ff1f86-59b4-4145-bdec-ef459a69825d/30378431843.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/madwoman_in_the_attic_cite.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/safety_first_ear_thermometer_directions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80edee4f-dd8d-4457-9986-c1d20156dcaa/kenwood_dnx692_wiring_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/51043011302.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/pilisijigupofobogegesoxel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b193a970-ea72-4958-b655-b9750bd2c5a2/tujhe_kitna_chahne_lage_female_version_mp3_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/nds_emulator_for_pc_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/27683641723.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/jump_rope_for_healthy_heart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c48621f-bbe2-4320-a16d-0620c6a66df8/xagunisasewol.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/list_danielle_steel_books.pdfIn PDF document text