Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4feaceafdb1786e…

MALICIOUS

PDF

43.6 KB Created: 2020-08-08 20:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 467313a3c03f4c0d6aaba51819926060 SHA-1: 2b48573058cc8aaf6f3b6a96a69b6c7e3383608b SHA-256: d4feaceafdb1786e6f09cce6bcedd3dfd4c989c8b7cfbae8575cc126823edb89
194 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior by embedding links to a known malicious redirector (ttraff.com) and a large number of external PDF links, likely forming a link farm for SEO manipulation or further distribution. The document body, though partially corrupted, suggests a theme of "business loan application form sample pdf" to entice users to click the malicious links.

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=business+loan+application+form+sample+pdf In PDF document text
    • http://files.virlinafuture.org/uploads/1/3/0/7/130775465/pozebu_talojokirix.pdfIn PDF document text
    • http://tedamina.kasl.us/uploads/1/3/2/6/132681579/ruwibajemud_kunerala.pdfIn PDF document text
    • http://files.ridgeandvalleyreptiles.com/uploads/1/3/1/8/131856569/3fdc1cebce.pdfIn PDF document text
    • http://files.firefallseffects.com/uploads/1/3/2/6/132681482/4a6dcbc8ef.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/1/0431/4490/4855/files/65164796247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5726/4280/files/73910332264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2309/8279/files/nafekawasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8427/4069/files/wedding_photography_poses_bride_and_groom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/fediwodudupanitofitig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/37620035061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4060/4313/files/papepipufaxaledezafoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/genestealer_cult_codex_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/pinivametapegemowug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/bodoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/mekanisme_anti_jamur.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 8

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_off00006bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB8 5348 bytes
SHA-256: ff223610e036ea76d776b2a4ce6b518ec9b71deab01248f744987597fe5c4d8b
font_01_sfnt_off00007dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD2 10364 bytes
SHA-256: f67031fedab4ecc70fc501c7b737c0cc94457b1349b5ffbad48c64d43ec84b8d

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