Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a4eff28193b200…

MALICIOUS

PDF

45.4 KB Created: 2020-08-14 21:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92d2d18ed2343dcb05a869ea86d151b3 SHA-1: cc30010c1275b0045bddd441a9c885ccfa41c4ee SHA-256: c9a4eff28193b200682c23aafaa120b025cc60d30394b9819c5408fc4c10a789
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or SEO poisoning attack, where the document is designed to lure users with a seemingly relevant topic ('Apache tomcat installation steps in linux pdf') to a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=apache+tomcat+installation+steps+in+linux+pdf, which is likely used to deliver a secondary payload or phish for credentials.

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=apache+tomcat+installation+steps+in+linux+pdf In PDF document text
    • http://dokekoso.clonmanygenealogy.com/uploads/1/3/1/4/131407440/vafuwimexo_xetesabuzowek.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/1/0430/3942/4669/files/nutadonogevegubobinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4573/9941/files/marafozojezaxupepijozema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/tukaduwadutuzubiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7254/files/praise_and_worship_songs_list_and_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/duvelawelow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/89102944982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/mowejikove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/14127651685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/97915532842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/39088215025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5649/6794/files/30735944702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1152/9114/files/59911831707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/runescape_dungeoneering_sagas_guide.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 1

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_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 5356 bytes
SHA-256: c4b978540051de159b05dbf17766fb9c599f558726d137be3aae7809609cb93b
font_01_sfnt_off00007858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7858 15300 bytes
SHA-256: 243d9dd6b42b06fbc79ff41dc292a1120fd41d64a471d4e33c47775334ff3c2d

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