Malicious PDF — malware analysis report

Static analysis result for SHA-256 61488ee160cf6dd9…

MALICIOUS

PDF

70.0 KB Created: 2021-01-12 03:50:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d254b4dc52a8e9d4e25a901374635993 SHA-1: a604fec4fa8fbd2f42ef86cf055a4c90018b9202 SHA-256: 61488ee160cf6dd91ca60706c3a9a84fb48fea635dc828192ee3556b1310a9db
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a PDF link farm heuristic. One of the primary external links, 'https://trafffi.ru/123?utm_term=catamount+glass+microwave+popcorn+popper', is likely malicious, while others point to benign or unknown sites. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the structure suggests an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffi.ru/123?utm_term=catamount+glass+microwave+popcorn+popper PDF link annotation
    • https://jamakebowixon.weebly.com/uploads/1/3/4/4/134477175/2220452.pdfIn PDF document text
    • https://pasezarovatif.weebly.com/uploads/1/3/4/8/134858127/vetobafowegi.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/1UjgQ20/alita_battle_angel_movie_review.pdfIn PDF document text
    • https://cdn.sqhk.co/dejegekonula/aif21Sc/black_survival_adriana.pdfIn PDF document text
    • https://pawawejovotete.weebly.com/uploads/1/3/2/8/132814611/6598299.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/jhjgfhd/nitof.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabumumiw/ajghagh/lucky_block_mod_download_java.pdfIn PDF document text
    • https://xalekosud.weebly.com/uploads/1/3/5/3/135350534/vawiwikojemufit.pdfIn PDF document text
    • https://site-1171850.mozfiles.com/files/1171850/14301709548.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/catalogue_oriflame_septembre_2019_maroc.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/63525473463.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_off0000d519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD519 5308 bytes
SHA-256: d46c6e7dde067cb28cf1c791bd34aafec1c6b9116f8ffa1d8fe9becff25b113c
font_01_sfnt_off0000e72a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72A 10640 bytes
SHA-256: 94658ff4f4c94928d960b09e62366de09d7f1361fc463ae660c01e8111d9a6d2

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