Malicious PDF — malware analysis report

Static analysis result for SHA-256 510064a88313c03e…

MALICIOUS

PDF

87.4 KB Created: 2020-08-07 10:20:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6accfc54751ae40b799b5833218407a8 SHA-1: 0c0685c029600611d5f23357904bee700678da27 SHA-256: 510064a88313c03edae15f45c66cc583ade3d88193b983e3fb63a88f37c3ea1f
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=alphabet+capital+letters+pdf', which is a known malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=alphabet+capital+letters+pdf In PDF document text
    • http://files.bgmacawconsign.com/uploads/1/3/0/7/130740017/tugetawagusib-zujom.pdfIn PDF document text
    • http://files.angelinanikon.com/uploads/1/3/1/6/131636769/dimoposewanap-banujirimepolad-ranujitixediv-simes.pdfIn PDF document text
    • http://files.usovaolga.com/uploads/1/3/2/6/132695805/jegakawurumawageged.pdfIn PDF document text
    • http://files.gigikentwellness.org/uploads/1/3/1/3/131398117/8797277.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/1/0432/8423/4398/files/36485652751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/65525931603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4501/9045/files/jetoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/31172097994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9765/9294/files/larson_calculus_10th_edition_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/sidetelox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3042/files/pototikipotabuted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/88241575986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/2966/1605/files/tarifs_postaux_belgique_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2038/4416/files/yify_movies_net.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e628.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE628 5372 bytes
SHA-256: 8945dd79b50c8961f2eeeda63cda73ce29bfc1c78fd2e6a49eaa2f8a874e349a
font_01_sfnt_off0000f81c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF81C 6280 bytes
SHA-256: 068317497321aa1be03216e2439f6b34415e291f1d78f6ff85d0bd946e12e80c
font_02_sfnt_off00010788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10788 16280 bytes
SHA-256: 9d1c8b8bae85c74e693516633ab4ea297b8daa80a8a3f687e695c5f4331ad29c
font_03_sfnt_off00013aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AFF 16192 bytes
SHA-256: 28454dddd9c06970dc806bf81b65da5be953fdcd52fafa542396da95faea2815