Malicious PDF — malware analysis report

Static analysis result for SHA-256 a910364ce8455267…

MALICIOUS

PDF

37.5 KB Created: 2020-09-21 00:15:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93cd29c0978eaac30dbc3f7254688a96 SHA-1: e512bdd96fa6ca49d16f59817042c90144e39601 SHA-256: a910364ce84552676a55cf69acedfaa470b57b6671ab3977b21a1b856c1e9a21
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary heuristic indicates a malicious redirector link, suggesting an attempt to direct users to a harmful site. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for search engines, likely to attract unsuspecting users.

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.club/wix?keyword=incubus+heinz+hall+for+the+performing+arts+november+8 In PDF document text
    • http://lubibotij.actscommunitychurches.org/uploads/1/3/2/8/132815986/xaturemesugu.pdfIn PDF document text
    • http://files.bryanskreations.com/uploads/1/3/1/4/131484328/wajikefuloriwakagabi.pdfIn PDF document text
    • http://files.jxli.net/uploads/1/3/0/7/130775997/1522425.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/1/0436/7728/6553/files/16200616454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2755/3686/files/93636620076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3525/8020/files/high_hopes_piano_easy_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8861/7378/files/mumuluzejoxovukomusugime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/rick_astley_together_forever.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4616/0552/files/dopukopuxorakapitaperuzob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3423/7333/files/boss_baby_invitation_card_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/fillable_vaf4a_appendix_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/mawlid_barzanji_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/brt_dual_band_racing_cdi_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/33533015322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/disable_chrome_software_reporter_tool_group_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2454/files/sexegimusufafupilijepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/89880179445.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 2

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_off00004ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB9 5812 bytes
SHA-256: f97d68bd9f33a7092970c0e582980a9b95f2e8640aee104a8152aecccd1ff9d8
font_01_sfnt_off00005e63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E63 13180 bytes
SHA-256: 9cffe6aea1f46e9e39c80ebda8483f209b67e4e16565ecdeaf5473759075e43d

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