Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f4113e93b2efdb…

MALICIOUS

PDF

45.4 KB Created: 2020-08-22 17:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3157d0060484b51b821b001f34f53291 SHA-1: 5297dbc10533e8b6ff30cce900be0016df693065 SHA-256: 79f4113e93b2efdbeaaf6f0de250103faf49c26a5a45adb21b7d186021d3b9a6
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to Android development and the malicious redirector URL, suggesting a lure for phishing or malware delivery. The ML classifier also strongly indicated maliciousness.

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=android+bottom+navigation+view+remove+animation In PDF document text
    • http://files.sedatedmedical.com/uploads/1/3/2/8/132815004/garejefubufalin.pdfIn PDF document text
    • http://bovila.beurownreligion.com/uploads/1/3/2/6/132682883/baxibufujo.pdfIn PDF document text
    • http://files.scfsoftballclub.com/uploads/1/3/1/4/131454567/237483.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/1/0432/3616/3747/files/22099701595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/samsung_j200g_frp_bypass_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/61121295968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/organic_chemistry_fourth_edition_janice_smith.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/80734050865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/37549498516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8189/8913/files/88366486031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/dojetimitazokoviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2905/9991/files/sherlock_holmes_by_sir_arthur_conan_doyle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0177/2192/files/nofubewenusagufezilut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4852/2143/files/jalixiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/order_of_adjectives_exercises_with_answers.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 5

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_off0000743d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743D 5216 bytes
SHA-256: c0346a74fc2d77f478bee8d588d5e0eba3e8a69a88f3b3c27884ceeae24a9ed1
font_01_sfnt_off000085f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F5 10128 bytes
SHA-256: 32af439baae0995fe3644bc4663e017a6ff314b3fc57b75fad3cbccf951ac7a2

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