Malicious PDF — malware analysis report

Static analysis result for SHA-256 91f0134037ea3d48…

MALICIOUS

PDF

45.0 KB Created: 2020-08-13 22:17:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2fee8007afb85b7fb9cd1bbd046fe27 SHA-1: d127ee01a3644c809b9575ffdf1d6b6308fcdfa8 SHA-256: 91f0134037ea3d48f2eeb004a04d5298a4d993317e418d5be28be3ce5c9536cd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary redirector URL being https://ttraff.cc/pify?keyword=book+of+mormon+japanese+pdf. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the extensive link farm points to a delivery mechanism for further malicious payloads.

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=book+of+mormon+japanese+pdf In PDF document text
    • http://files.onelightinstitute.org/uploads/1/3/2/6/132695746/vixiwaxopitime-sopojirowor-tirulunonowog-vugupifutamu.pdfIn PDF document text
    • http://files.portellowinecafe.com/uploads/1/3/1/4/131408250/zitog-xotoj-tivatiguxivev.pdfIn PDF document text
    • http://files.bluecornconsultingllc.com/uploads/1/3/1/1/131164308/witefed.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/1/0429/7555/9829/files/xapuwanabeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0692/6754/files/1491938484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jojanasesejunuveko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6033/6542/files/87292628056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/putolunibimewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/12233942098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5217/0392/files/dadul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4506/0762/files/dezoxetazipaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/3050982795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6717/4040/files/aerodynamics_car_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/triola_elementary_statistics_12th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lokilus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6551 5004 bytes
SHA-256: 361261355c07198336062497a3a37a1e5694eb7624238b7824951141d867fdb9
font_01_sfnt_off00007635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7635 10100 bytes
SHA-256: 62d5cc27d3b7651e694b676347997e4185cc213dff1a8602263c30e4199e1bd7
font_02_sfnt_off00009898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9898 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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