Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa9af813f9f5d155…

MALICIOUS

PDF

46.1 KB Created: 2020-08-21 12:48:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79ed05fb1b6db9a00425180d55b262ee SHA-1: efbbffef449a451761c58ae712410c0e4783873a SHA-256: fa9af813f9f5d155526ba2b5d64405bb9684ccee16e9933600f26079e4d5ef16
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.com/pify?keyword=android+barcode+scanner+to+excel+spreadsheet, which is likely used to deliver a second-stage payload. The document body, though heavily obfuscated, contains this URL, reinforcing its role as a lure.

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=android+barcode+scanner+to+excel+spreadsheet In PDF document text
    • http://sofogez.tlccasolafarms.com/uploads/1/3/1/3/131379730/8438514.pdfIn PDF document text
    • http://files.oranmormead.com/uploads/1/3/1/3/131384281/doxipokapidij.pdfIn PDF document text
    • http://files.dgordonassociates.com/uploads/1/3/0/8/130874104/fomufunawamiz.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/1/0440/3088/6053/files/jipijukol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/nepalevekunosomepovekaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6146/0644/files/23186107952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/treble_clef_notes_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4013/6601/files/peter_and_the_starcatcher_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8316/0995/files/risedotasasolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/zovexatomomeruvovoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5253/8787/files/14258185137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1468/files/biology_book_4_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6964/files/97569979243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/51812765759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5383/2609/files/b_boying_dance_video_free.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_off000075bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BF 5360 bytes
SHA-256: 8282c3064c2fc6683d6401ea70bfcac7a16278c38b86b94e221743e953b3b21e
font_01_sfnt_off000087e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E4 10256 bytes
SHA-256: 01a20756fba5058c50d9acd79a5c57410d559c994e37d2a0060e2c271830d4be

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