Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9f88b1c4e7f017…

MALICIOUS

PDF

45.2 KB Created: 2020-07-31 08:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bdb7596b7c1bf0c550c963961809455 SHA-1: 36adebcb9978db6dba1aeaa84a911c83cb62fc59 SHA-256: dd9f88b1c4e7f017cbe96b93a9d1a2609d2eb33128f8ef444dd411a1b1c22fb1
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a free download for 'Ayatul Kursi PDF'. The file also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains. The document body is heavily obfuscated, but the presence of the redirector link and the link farm structure strongly suggest a phishing or malicious redirection attempt.

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.com/pify?keyword=ayatul+kursi+pdf+free+download In PDF document text
    • http://files.mmdrentals.com/uploads/1/3/1/4/131406344/e65f93.pdfIn PDF document text
    • http://files.my-mediamatters.tech/uploads/1/3/1/3/131398547/2800a404.pdfIn PDF document text
    • http://files.anatomy-demystified.com/uploads/1/3/2/6/132696414/witeperagu.pdfIn PDF document text
    • http://files.scharencycles.com/uploads/1/3/0/7/130776118/ginukaxezunat.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/1/0429/2883/2675/files/11631755696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/tukukonamenoxufebuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40814320730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9601/5002/files/rewupizotutuzijukinavazej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2776/7206/files/38602717128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4849/3475/files/tevolirugopaziwilovefonav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/nugipenoxetasegibok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/26432139604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/zorafaxibadonepuloruwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/89574132315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5928/files/54207907679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/rugujupukabu.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_off00005dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCD 5164 bytes
SHA-256: 7e13af5b9554fb69c9868d1b52d5d372f9ca118cb695d97679c90c52e89235ad
font_01_sfnt_off00006f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F84 9652 bytes
SHA-256: 81dc67dbecf2d6a3297602e21f4a283cf433e7d2c67f7779ea1799de43b5bc45
font_02_sfnt_off000090bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BB 16448 bytes
SHA-256: 63d0de7879e594f641accc51e6e5bc3e0c2fed25fbb0977e1d2fd03d9170ae31