Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff3e9f7b4563179c…

MALICIOUS

PDF

48.2 KB Created: 2020-08-24 03:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6360a3f07fa0f4c7754407df9814e166 SHA-1: e233238bc0add8027de5224e960da51abeadbf9b SHA-256: ff3e9f7b4563179c1eb2de0fe2cd697010752d4c29a9ef49a3ee079d5aeeb18c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=quaternary+protein+structure+pdf'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of embedded links, many of which are hosted on potentially suspicious subdomains. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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=quaternary+protein+structure+pdf In PDF document text
    • http://fofew.franibab.com/uploads/1/3/0/7/130775573/134927.pdfIn PDF document text
    • http://files.reedertranslation.com/uploads/1/3/2/6/132682868/rijuzik.pdfIn PDF document text
    • http://fivomina.elisetrelegan.com/uploads/1/3/0/7/130776542/0847087ddd61.pdfIn PDF document text
    • http://malog.lesherinstrumentalmusic.com/uploads/1/3/1/4/131438304/wafaladorawebafoluzu.pdfIn PDF document text
    • http://files.reach4thestarsstore.com/uploads/1/3/1/8/131871817/sebulekezekozije.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/1/0432/5729/9099/files/63504973565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6173/0718/files/woxopusanax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9390/7869/files/boy_scout_popcorn_order_form_2019_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/assemble_to_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/roger_walker_clinical_pharmacy_and_therapeutics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/nefixakojazodagutitudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4536/2581/files/namabulararorejovokuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7093/9541/files/mqa_bursary_2019_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/17656813954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16485275060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4431/4024/files/formal_conference_invitation_template.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 8

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_off00007dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC4 5280 bytes
SHA-256: e44020c263bff277e2475743fc68a68ceaa60b50d9f015359c0c795776cb97df
font_01_sfnt_off00008fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD2 10520 bytes
SHA-256: cab09d8c7a1ca17ca16221f57f61af35c41cb965d8d42677e400509e4116521b

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