Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db076b48838248c…

MALICIOUS

PDF

36.5 KB Created: 2020-08-23 01:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe2cda504b435f68384afd3dd541e6d3 SHA-1: 9cbc1161891748b1b6cedc1dff2b93b84d9179aa SHA-256: 1db076b48838248c2f3dd788d9e014f043df669005dadfc9e5e1e33480fba9ef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a mass of external links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=conditional+probability+worksheet+ap+statistics', suggesting a lure to download further content. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning to attract victims. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.cc/pify?keyword=conditional+probability+worksheet+ap+statistics In PDF document text
    • http://files.bullengarookadultriders.com/uploads/1/3/2/6/132681596/fomapofegaro-wopigadazodup-zevevamer-tirexilagenizo.pdfIn PDF document text
    • http://files.religiousdoodles.com/uploads/1/3/1/3/131380440/mugoritogeri.pdfIn PDF document text
    • http://files.bcpreventionnetwork.com/uploads/1/3/0/7/130739532/felarijus_rimotilaz_kuxokaxesi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/jawafum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/mokakovimirituvonagire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9468/8423/files/46077835489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/makalah_urbanisasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3728/6812/files/36085419515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/teverosifaxisad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/mixukavivexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4314/files/21947747513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9937/4236/files/foxilelobasavifemixaw.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5128 5464 bytes
SHA-256: 37bcfa3e872a45f31a61a0434c9bcce4088561230f00b1e219f365590b05d33f
font_01_sfnt_off000063c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 9768 bytes
SHA-256: 5c490d53afed241521ed0109abfbc34053425571390f2a53c180300847300e7b

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