Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7fe3c254692b717…

MALICIOUS

PDF

39.0 KB Created: 2020-08-12 04:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 032b1a7b4adfd327cfbf225b7137838f SHA-1: 315ca2eb8afde43919dc63450f5fe1b21ef44d15 SHA-256: a7fe3c254692b71773a547caddcbee86cea80741f897cb78f00545ea5e08ff31
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.cc. This URL is presented to the user as a download for 'one republic apologize piano sheet music free pdf'. The document also contains a PDF link farm heuristic, indicating a large number of external links, many of which are hosted on Shopify. The primary malicious IOC is the ttraff.cc redirector, which likely leads to further malicious content or malware.

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=one+republic+apologize+piano+sheet+music+free+pdf In PDF document text
    • http://files.fourseasonsplace-klcc.com/uploads/1/3/2/3/132302883/3281893391.pdfIn PDF document text
    • http://kuzenop.africansoulinternational.org/uploads/1/3/0/7/130776791/5ae3ae9c8958.pdfIn PDF document text
    • http://files.cinsationaljenn.com/uploads/1/3/0/8/130874317/mimil_nomoxeg.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/1/0436/5638/0574/files/dagufudomojekuzujiwezudaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/discord_bot_commands_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80789229335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/74974220695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/84605309088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/litigikedukifef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/3246746507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3446/0828/files/digalitiradunefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7429/files/neluxukan.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 3

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_off00004cd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD2 5784 bytes
SHA-256: bb12197840e539f34265d661fd0b22bad74e1be8cfc975b4f5c49edfc58caa57
font_01_sfnt_off0000604f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604F 15132 bytes
SHA-256: 9bf8d2e3df1a5699989f50f842016aa1deb9475bec4f2e8084e6275487a64d83

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