Malicious PDF — malware analysis report

Static analysis result for SHA-256 10964dae29ed2ad5…

MALICIOUS

PDF

61.4 KB Created: 2020-11-11 08:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7fe21f6bbf5f8650a59935c814117bdb SHA-1: bbc5270a7b87decaf5ee274c5ba151b2958eb0ed SHA-256: 10964dae29ed2ad59afa0be3ec2a6d5d0c851d9eb7fb5bedc29a6559cad436e5
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://trafftec.ru/123?keyword=craft+potion+pathfinder PDF link annotation
    • https://bawezinanowele.weebly.com/uploads/1/3/4/3/134305895/vixadis.pdfIn PDF document text
    • https://faxegosesu.weebly.com/uploads/1/3/4/5/134528451/filobed_seveva_wowumirizon.pdfIn PDF document text
    • https://lotagixowila.weebly.com/uploads/1/3/1/1/131164100/5651968.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423460/normal_5f9b70711e5f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7323183c-b037-4225-8df1-aa8c8b0242e6/aile_arasinda_watch_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccb33f5d-ecb2-449d-9550-8eced0c0c0a9/84330195148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3482fc10-d64c-4817-98e8-b7b03c76f732/fukemunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1106bd1-bc51-4628-87fb-23b49689ba53/poe_enlighten_support.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b42bc98a-0cc0-4fd3-a3ce-aede113dd9e4/52089536355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d55cb808-ae29-4c74-a4c2-905b92e8952a/nadopedugebetifalizez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f86344d-afd1-45c4-a4b4-b6f59a33dca2/age_of_consent_lyrics_geographer.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB438 4824 bytes
SHA-256: 09c50a1dfdaae127d0ae27cdca83f81493ffddf4369cf446b138a3ec4f1aa567
font_01_sfnt_off0000c497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC497 10868 bytes
SHA-256: 03e8f6560166421ad9b96ce0a4674f7ddfa8a1244a5096daec1437b60c544a71

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