Malicious PDF — malware analysis report

Static analysis result for SHA-256 e421732079eae5cf…

MALICIOUS

PDF

43.7 KB Created: 2020-08-16 20:18:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a67105c715e060e31b94e1cddd02379d SHA-1: 67e719ecc8f0240d254201b382d05100ae91807b SHA-256: e421732079eae5cff59b0e6b5e6abc027593ce64a6e451effa473f0086c8d192
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=jaaneman+chupke+chupke+movie+song'. This indicates the document's primary purpose is to lure users to this malicious site. The presence of a large number of external PDF links, while many resolve to benign content, suggests a link farm or SEO poisoning technique to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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=jaaneman+chupke+chupke+movie+song In PDF document text
    • http://files.giantsparrowpress.com/uploads/1/3/1/4/131437532/subelore_kumupexugelo.pdfIn PDF document text
    • http://files.badassgirlworld.com/uploads/1/3/2/6/132683142/dcd773fe8e66.pdfIn PDF document text
    • http://files.shannonkmccurdy.com/uploads/1/3/2/7/132740767/nuwegiximorumop_vabexuzaxot.pdfIn PDF document text
    • http://files.mwilkinson91.com/uploads/1/3/1/3/131382092/fipumu.pdfIn PDF document text
    • http://files.hennyoverbeek.com/uploads/1/3/1/6/131637385/6502120.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4031/7335/files/2127523723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5189/1358/files/cake_recipes_in_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1579/7917/files/gikoxatoxuxisogijezize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2178/files/tau_empire_codex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/tactics_for_listening_advanced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/telijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/crown_of_the_earth_classic_wow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/vikuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/xogomuzuwamekigekuro.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 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5377 5332 bytes
SHA-256: aecab6c4ee9bc8d69f1c1b0f686338727aebf66a66fc7edc743ce13fd799a6b5
font_01_sfnt_off00006574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6574 15344 bytes
SHA-256: 10af1b359732b33d6a26521b1567e7a11a09a94eb478edfe90e5fc8f1e8ecd00
font_02_sfnt_off000095cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CD 3152 bytes
SHA-256: dbe7de32c8e08e389462a2d711a243eda662daf5e19a71064eda43e7631fd73b

Open this report in the interactive analyzer, or submit your own file for analysis.