Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a286cd78fd97e3f…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 15:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9db28056ad2d7883d03cca5c5a5dd454 SHA-1: 64350b1a02ee154fe665dcf7478cde11adeb3818 SHA-256: 2a286cd78fd97e3f617826f39565ceec326deb8b8e1741cd80d217b9b531ba4c
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wix?keyword=star+wars+title+crawl+generator'. This link is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to shopify.com, likely for SEO manipulation or to host further malicious content. The ML classifier strongly indicates maliciousness.

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/wix?keyword=star+wars+title+crawl+generator 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/1/0463/3113/4113/files/53066878885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/calculus_early_transcendentals_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8231/files/38408089026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/10th_class_2020_date_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46552055365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/bakerowodifobuxagedorasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4873/8720/files/dezonukunuwuselajusufin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/virajonur.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_06bda1539ada4c8e9e2b7c7eff23da76.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5fc6c97f93bc4691a976cd63338b8b70.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/20d83a_2e09364648524685a7c2416c284406ba.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ff10f24e6597413396d47af256bffd89.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8765/files/lepepuvevogebifobipoloxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6518/9019/files/22206161327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4591/1709/files/xewero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1621/4939/files/34753117033.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_off000049f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49F7 5160 bytes
SHA-256: a719f879fc307716b95306b39e820955cc17753ee77556e72426ee937fe7ab43
font_01_sfnt_off00005b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B98 10232 bytes
SHA-256: a1e5ba46a76c84856803e60051a508d38114c9142fc3983e8f05a03fe5a59f47
font_02_sfnt_off00007eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB6 16108 bytes
SHA-256: aed46c9af23f208f135cb03afacfd1ac790ba89857c5134c11dc43e7260cc7d5