Malicious PDF — malware analysis report

Static analysis result for SHA-256 522b4697dba90979…

MALICIOUS

PDF

79.1 KB Created: 2020-08-25 08:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74fed996aca9510d2de2fdbf2746bd3f SHA-1: 4909f4450fa850be071fdc7443ff2d85f58cd575 SHA-256: 522b4697dba90979f3dd6f21ac2f10e9395f23c2afebdab8312739d3edefb6f0
194 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Adsorption isotherm pdf' and the URL 'https://ttraff.cc/pify?keyword=adsorption+isotherm+pdf', suggesting a lure to disguise malicious activity. The presence of a link farm heuristic further indicates an attempt to distribute malicious content or manipulate search engine results.

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=adsorption+isotherm+pdf In PDF document text
    • http://files.ether1227.com/uploads/1/3/1/4/131438240/fofexefujuguxeme.pdfIn PDF document text
    • http://lufadoruv.lancastercountyconstables.com/uploads/1/3/1/4/131407535/gilomuworojut_mibajemaseti.pdfIn PDF document text
    • http://xafajol.isabelsherk.com/uploads/1/3/1/3/131379730/7126304.pdfIn PDF document text
    • http://laladuru.ninthdistrictdems.org/uploads/1/3/1/6/131637136/b134f7630e6.pdfIn PDF document text
    • http://files.kmpinner.com/uploads/1/3/0/7/130739764/nukafewipumeruwoniz.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/1/0431/1446/3394/files/84472438038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3760/3478/files/ap_us_history_study_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9286/9281/files/bifamatejeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2200/7965/files/cholesterol_test_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/hybridization_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/zoveve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/78561646329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/46306914060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/43513396082.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e09d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09D 5028 bytes
SHA-256: ce770b91debc93efbe505e85fbc627f09edd6602b7f45b09331dd005d5500f84
font_01_sfnt_off0000f18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18F 11904 bytes
SHA-256: 7037a40736578756a932663fb648cbb151a8f99af0106981afd60c372b28b025
font_02_sfnt_off00011a09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A09 16104 bytes
SHA-256: 97f6b80edf08cc5b0df0b0498a98c215780675af88f340742e7e855906399d0f

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