Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3ae894b94c912d…

MALICIOUS

PDF

56.7 KB Created: 2020-08-26 09:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 395f3793da37141057d2b600a24e39f3 SHA-1: 459e90c793a238ea44a94fbe140cee161cc3c93d SHA-256: 2a3ae894b94c912db169e2d700b9053a1dda57cc8da3d588ab01f80cf1e4d24b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body text and embedded links suggest a lure for downloading content, likely malicious, under the guise of a free ebook. The ML classifier strongly supports the malicious nature of this PDF.

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=abbi+glines+until+friday+night+free+ebook+download In PDF document text
    • http://nadanije.coburnsandandgravel.com.au/uploads/1/3/2/7/132740214/lakekozijifitagotev.pdfIn PDF document text
    • http://rikibuwoz.scproperties.info/uploads/1/3/1/8/131858685/9949948.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/1/0435/4965/5203/files/wojupazoxuvamamiwibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/rapogogojemusodivijixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/41301884481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1945/7944/files/wexanefaputekanejobasus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7485/4812/files/the_absolute_basics_of_the_christian_faith.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/bam_bino_allergic_to_cuffin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7330/files/19093582825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4787/0876/files/gum_disease_and_heart_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0406/files/41126399961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/60023961473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2202/5623/files/14376106900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/numirirodiveforumatev.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

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_off0000814b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814B 5556 bytes
SHA-256: c3e020a0fcc77e90f4d8ab64792506a01534188d57dc254fc23bfcbe52d92abe
font_01_sfnt_off00009442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9442 11220 bytes
SHA-256: 0466765cc99d05345d0a79dd1f69afdecb6d8962a9f2f1369f224b0d83289993
font_02_sfnt_off0000ba73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA73 18216 bytes
SHA-256: 60e3175e83a4375c09e4c636fc6370e88c8e6dc8f360b222ece11e681a0c574a

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