Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a3545ba7cf86cd6…

MALICIOUS

PDF

48.0 KB Created: 2020-08-20 04:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58f142419e407ec5bb817eab62c6e24e SHA-1: a5a9ac21ca05bb91ecb2157e3acbbc3c45fd3a51 SHA-256: 5a3545ba7cf86cd6fcaa3d7515ce60a29b1203747419e1a5461b12a3bb68e9f6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a primary redirector identified as `https://ttraff.cc/pify?keyword=browser+games+no++2018`. This URL is flagged as a malicious redirector, and the document's structure suggests it's part of a link farm designed to lure users. The ML classifier strongly indicates maliciousness, and the presence of multiple external links points towards an attempt to direct users to potentially harmful content or phishing sites.

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=browser+games+no++2018 In PDF document text
    • http://devija.destinyinthedetails.com/uploads/1/3/0/7/130775087/kubinapolub_losumiru.pdfIn PDF document text
    • http://wumosow.cdestem.com/uploads/1/3/1/4/131409090/kasupokeveto_wezavanepomi_rirebi.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/1/0440/7217/3733/files/63202367383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedagefegumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/73308550421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3861/files/50801448211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9746/3714/files/liquid_chromatography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/22115642716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5058/2684/files/corpse_bride_piano_solo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/acrobat_pro_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5340/6618/files/d_d_4e_monster_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/taduwotopiwotevapog.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 1

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_off00007543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7543 5636 bytes
SHA-256: 6e8fdaaf7abd5d73933bab911eff060bce64d20bd6ecd28fe336ced8cd0ad3ed
font_01_sfnt_off00008873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8873 13724 bytes
SHA-256: 07f3d2721019a5ef60f5c807a2c59da8d496ffbba7fa73a8c69d37ecad349460

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