Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7a11037460e4e0…

MALICIOUS

PDF

59.4 KB Created: 2020-08-22 06:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4b3f873c802f73b0a754d5de302255a SHA-1: 890e89d081bb08c98c90cecf94ae479b0f9f731c SHA-256: 9d7a11037460e4e02b817ba358ac848862366787f3db7b10b3742b94e6c56844
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, indicating a phishing or social engineering attempt. The document body, though heavily obfuscated, contains text related to a 'free calendar planner template 2019' and a URL that aligns with this lure. The presence of numerous external PDF links, many hosted on cdn.shopify.com, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF. 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.com/pify?keyword=free+calendar+planner+template+2019 In PDF document text
    • http://rupazu.mckeague.com/uploads/1/3/1/3/131378820/xozuzato-tiguniso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/tulekogaler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/46307142182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/pazarosegaxulodoriki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/carry_on_jatta_2_punjabi_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/52054275932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/84406432570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4530/6011/files/73080352116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/42934609353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4016/files/kijesizavowuwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/70471695518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/oracle_bcs_question_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/25281306455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0497/6548/files/dipuzufade.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3C 5108 bytes
SHA-256: 813642c8d02e2c2d497e3b08e7713122318df0a4d2eb4ad32e1fadbe78c583bf
font_01_sfnt_off0000ae7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7D 10536 bytes
SHA-256: a5a54e4c2de41eddcc8ef167c10ae4805dd441168b075ae6aaff61355df78489
font_02_sfnt_off0000d25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD25E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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