Malicious PDF — malware analysis report

Static analysis result for SHA-256 783907dbe01ec2ba…

MALICIOUS

PDF

47.6 KB Created: 2020-08-30 17:37:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89c0fc62c19e8da7914377195b1a1c46 SHA-1: 18e044663d164a30554e72e040bab0dc767fcaa5 SHA-256: 783907dbe01ec2babb561c19c078e3e6af92c77b12d97bac4c02cc63780622dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This redirector is likely used to obscure the final malicious destination and potentially engage in phishing or malware distribution. The heuristic firings indicate this PDF is part of a link farm designed for SEO manipulation, with the primary goal of driving traffic to malicious infrastructure.

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/wix?keyword=space+engineers+equip+gun In 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/1/0437/8696/1045/files/sonodenagopita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/11441454984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2266/3325/files/brewster_law_derivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7140/7008/files/71951713466.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e73fea_65350d36839b455e820351fa8dfdfd74.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0f1814_a5880f77ac244464b0353bb3e5327918.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4b68be_7b280d4320b248daba8b814325ec50a2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/tivurudelajujuworokozuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/tukividajikurekuvabefeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/45873361508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2238/files/gupugol.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a4828b92555b41358da5203a94787f42.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bc34b97dcaa74938b16abff6b346559c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/49be48_520639a6a0e94e7b8ba6dc4fb4e74692.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d54300_11d034a2cc524990a3a49e52cb6ab969.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_607cf5f478734dbaa885c6cc1aadfda5.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 5296 bytes
SHA-256: e7fbae25dfac2b8fd1b1314225fdf3325fd454469f60d47d65733e35d0024a01
font_01_sfnt_off000077f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F2 11404 bytes
SHA-256: 197781ce204af5f0006ae9e1de61d689728b9d519a50712a3201510086522180
font_02_sfnt_off00009cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD0 16104 bytes
SHA-256: c72ca0970d51b0a8ad78cefeb5ce5696832e14da31bd2128a4ba9c3d04a16bf4