Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3d097b8b2ba39ad…

MALICIOUS

PDF

42.2 KB Created: 2020-08-15 18:43:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2400e9667860a66c4b11b7a9ae7dbae1 SHA-1: 3da3f9d3a28294927e687648e229bd2c6a743d0b SHA-256: a3d097b8b2ba39ad470a63e8bf0a1fc929c680b7815a74c740e50e858d916b1b
194 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a malicious redirector link and a large number of external links, suggesting a link farm designed to distribute malicious content. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.ru/pify?keyword=adjectives+of+character+pdf' is a primary indicator of malicious redirection. The document body contains garbled text but also includes the same URLs found in the heuristics, reinforcing the malicious intent.

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.ru/pify?keyword=adjectives+of+character+pdf In PDF document text
    • http://wixuxoz.lorrieleanmoment.com/uploads/1/3/1/0/131070851/3506041fe55.pdfIn PDF document text
    • http://files.elevagplorders.com/uploads/1/3/1/4/131453247/jibadidetaginan.pdfIn PDF document text
    • http://files.nafoglobal.org/uploads/1/3/0/8/130814172/9673174.pdfIn PDF document text
    • http://pusem.battleatthehive.com/uploads/1/3/0/7/130776483/9174891.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/1/0440/5886/9910/files/call_for_papers_conference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7826/2692/files/xutezozakurawisanajibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/xesufexibejunuzupuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/zajebelomuxobabunokun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7824/6815/files/laduweji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4414/1218/files/wopuvirexebugitodeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0692/6741/files/34080094084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/parallel_models_of_associative_memory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5507/7790/files/34563627703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5297/2697/files/20779434064.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 4

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_off000067a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A3 5336 bytes
SHA-256: 89353b0606e89bf50a97f5667fcff236c4e4d5c01b6bc4bcb2fe818ccee8c1ee
font_01_sfnt_off000079cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CD 10088 bytes
SHA-256: eb457864f49eeb6bb3b4f7139d45b064b0fc79a90c19932f63e6ce99568fc508

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