Malicious PDF — malware analysis report

Static analysis result for SHA-256 11c89d006304a2ab…

MALICIOUS

PDF

42.3 KB Created: 2020-08-15 08:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74afab23e6b4676e3383062e42e26449 SHA-1: 4feddf235cc0641dfb80fec0822be165e6b6da5d SHA-256: 11c89d006304a2ab6316c84b4733691eb4947dda49f8136b2cdf1d89cd7305f3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure related to "diary entry questions and answers" to entice users to click the malicious link. The presence of a link farm and a redirector indicates an attempt to lead users to potentially harmful content.

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=diary+entry+questions+and+answers In PDF document text
    • http://files.stfrancisdesales-saginaw.org/uploads/1/3/0/8/130874278/5742218.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/1/0428/9835/8432/files/dobemajafapurotexujebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/92333167726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/nokia_android_mobiles_below_50000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2546/3456/files/nifawemebufijimafewoxener.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2066/2422/files/zonemavufiwiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5258/7415/files/44489159556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8781/4044/files/jifakigixitokotanakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/beatles_complete_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3883/2800/files/node_read_json_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/funawazufokuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/nelelujafo.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_off0000671c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671C 5104 bytes
SHA-256: a1d3d76152bf275572edf8f8e20548d885f92c54615fff35d0046f811ce81eb4
font_01_sfnt_off0000789b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789B 10680 bytes
SHA-256: 8620d3f16084b03c9d07e599bdcdcb58159019589f3cbccff27ff66443b3bc6a

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