Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf7b672aad566fd3…

MALICIOUS

PDF

56.8 KB Created: 2020-08-04 04:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51fb4e7510de72f72581b86a29d94f7a SHA-1: 121ca247d919f49d00b113141bd828bbac3f1ea7 SHA-256: bf7b672aad566fd3362ff488917b3c6bf7a2d63bff830475e4358d3e35bff2e0
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=uniformly+accelerated+linear+motion+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com, but one critical redirector. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary intent is to lure the user to a malicious site.

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=uniformly+accelerated+linear+motion+pdf In PDF document text
    • http://files.parkerresources.org/uploads/1/3/1/1/131164460/fd74088.pdfIn PDF document text
    • http://files.samuelpakart.com/uploads/1/3/0/8/130814581/502604.pdfIn PDF document text
    • http://files.rayvenholmes.com/uploads/1/3/0/8/130874276/ragadewesaxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/66528361289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/94261243211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/lipamisenozumemove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7473/8581/files/68456943353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/52100540726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/jasokasivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/87161229699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/6208820811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/bismarck_foreign_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/xumuboj.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4F 5004 bytes
SHA-256: 061574a55910ff974b3ad6d0ad5858fd855450823454a0711b190d41f99a2e91
font_01_sfnt_off00007f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F33 16572 bytes
SHA-256: 58e8f37bc6c8fbd55298b91714a0c25af31354a57e3459a70b3d47011b98a589
font_02_sfnt_off0000b2fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FD 16096 bytes
SHA-256: 4176cea9eed135456ff01d01dcb27e1446195065c35686fea3e1358135edcb04
font_03_sfnt_off0000c7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D2 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361