Malicious PDF — malware analysis report

Static analysis result for SHA-256 34fcfe8b56aabf1f…

MALICIOUS

PDF

44.5 KB Created: 2020-08-12 10:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7982e645947cd358c15c2032718bade4 SHA-1: 52ccecbd32fd3d8b129f1a90d4fa0432a3958c3c SHA-256: 34fcfe8b56aabf1fd68f444b559ca9430c35c2aa9f2c468a86156bfff103ddfe
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=autonomic+nervous+system+table+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The PDF also contains a large number of external links, indicative of a link farm, further supporting the malicious redirection attempt.

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=autonomic+nervous+system+table+pdf In PDF document text
    • http://files.linhbridal.com/uploads/1/3/1/3/131398054/fad0fe1a71d49.pdfIn PDF document text
    • http://files.joshjchoi.com/uploads/1/3/1/4/131437276/6070165.pdfIn PDF document text
    • http://files.megansmission.net/uploads/1/3/0/7/130739126/kakakip_bewidi_situnaluvisoxo.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/1/0437/7473/8593/files/15298225103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4252/files/nopuwajuzudesifemikibikom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2317/8656/files/pragmatica_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/razikeruranofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/ps4_too_many_usb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/61729375410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6112/5013/files/zuzakilisikigopukobezase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6663/6953/files/66155258718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/79615576992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7982/6589/files/mubokabukomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7323/6131/files/assembly_language_program_development_tools_8086.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 2

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_off00006fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAD 5592 bytes
SHA-256: 42df0240ca34f393e87545788fd2c419518922594b63c73d6fc6b092113dd295
font_01_sfnt_off000082a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A1 9932 bytes
SHA-256: 50c4d9f2e03da596d17dfe005d3681b63c9b92e0145a102890218d8b68058137

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