Malicious PDF — malware analysis report

Static analysis result for SHA-256 acf073603ef686b5…

MALICIOUS

PDF

52.6 KB Created: 2020-08-16 10:54:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c12534b39db46d3e7b705532bc01fff8 SHA-1: 7661d5d4a30325de1f31ae1c6093e6a9508daac2 SHA-256: acf073603ef686b5120b4b9b7d1b62f49b359a45c9bf98ff1741fc2a5f5a3c98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=love+story+sheet+music+violin+and+piano'. This URL is likely part of a phishing or scam campaign, attempting to lure users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. The presence of numerous other PDF links, while some resolve to benign Shopify domains, suggests a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.

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=love+story+sheet+music+violin+and+piano In PDF document text
    • http://files.gitchgear.com/uploads/1/3/1/3/131379591/1a0ba6a6.pdfIn PDF document text
    • http://files.nextgenerationcordblood.org/uploads/1/3/1/4/131437930/kogutozubovimurew.pdfIn PDF document text
    • http://sakoda.beavertonrailroadclub.com/uploads/1/3/1/3/131381204/e8ab3e5156.pdfIn PDF document text
    • http://tadakifa.artbywinette.com/uploads/1/3/1/8/131856772/9724117.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/1/0431/4375/7985/files/64023710800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/69308560623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/louisiana_literacy_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/guxugadowepetikukoxifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/pexisopisodakakunirukimal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/tessa_blanchard_theme_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6514/files/92888362390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/lewejafotusagupabukufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7246/files/alcohol_y_gastritis.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 8

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_off00007b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B39 5416 bytes
SHA-256: 1166e00d7d119a3079823c4288514ab3fbc5be703b3973c6c167cba0dc4406b0
font_01_sfnt_off00008d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D91 10176 bytes
SHA-256: ce0e82eaf5f848e0d703c06306635b1a8448f27823e8f30803a5ae038ba9f4cd
font_02_sfnt_off0000b0a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0A5 16100 bytes
SHA-256: b330339415d7fa9c1b652c1fb2a052ec06569061b7b71506ab53161dc9b94742

Open this report in the interactive analyzer, or submit your own file for analysis.