Malicious PDF — malware analysis report

Static analysis result for SHA-256 41e54d04e263c700…

MALICIOUS

PDF

38.4 KB Created: 2020-08-14 05:07:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10fc6b74d51ecfdd384daaa4808ab55a SHA-1: 9c343e9fdb80586884628ebfe893fa6996be454e SHA-256: 41e54d04e263c700e5f86300f2f640dce5dd1f996037c5e7405062e3949205ba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.ru' is flagged as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign, aiming to lure users to malicious sites. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=one+calculator+multifunctional+calculator+app+apk In PDF document text
    • http://files.berniegleason.com/uploads/1/3/2/7/132740327/fofinaxok-pekevefemu.pdfIn PDF document text
    • http://files.darciebeemanblack.com/uploads/1/3/1/3/131398097/zevizifepim.pdfIn PDF document text
    • http://files.artytypesartschool.com/uploads/1/3/0/7/130776246/zobonosizar_jijowamuzim_wivuvonoxufupiw_zikil.pdfIn PDF document text
    • http://files.fairtradejoolz.com/uploads/1/3/1/3/131378990/risoguvivoxixep-bevadudejudam-vufumazimapipoz.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/1/0430/0800/0163/files/godezojuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7228/9944/files/tovogunafizavabotan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8871/5682/files/biology_grade_12_deped.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/10898068465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wevanedinuwisuvajolow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/canciones_de_rock_para_guitarra_acustica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6486/6469/files/27818026786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1167/8114/files/31086840802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/58923853429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/aortic_valve_insufficiency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1653/1617/files/dxf_to_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6518/6206/files/kiwozunemulila.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 3

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_off000057d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D8 5076 bytes
SHA-256: cbbb583e4d89c060b93af7312f7e0c6834574f37edf8886c0b7ded701579c14b
font_01_sfnt_off00006909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6909 10368 bytes
SHA-256: fc1ae37d45c145c2d4c61c928825e69affe879a4bb66953382598c20817128f1

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