Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f172ec151214c4c…

MALICIOUS

PDF

43.1 KB Created: 2020-08-10 12:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9da4e3019cac0c21af61229e2410e2cf SHA-1: 1f681bece109388c9b0ff53924d926a510b0ea92 SHA-256: 0f172ec151214c4c4e868d0fbdd50fdf53280fe4dcd390bb53382d46190c5d77
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to an SEO redirector infrastructure designed to lure users with seemingly legitimate document titles. The primary redirector URL, https://ttraff.ru/pify?keyword=buck+boost+converter+simulation+pdf, is flagged as malicious. This suggests the document's purpose is to drive traffic to malicious sites, likely for phishing or malware distribution.

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/pify?keyword=buck+boost+converter+simulation+pdf In PDF document text
    • http://files.vidlersautomotive.com/uploads/1/3/1/6/131636642/5cc768459.pdfIn PDF document text
    • http://files.patsvision.com/uploads/1/3/2/6/132681647/1120289.pdfIn PDF document text
    • http://files.thewellnesstraininginstitute.com/uploads/1/3/0/8/130814534/1234613.pdfIn PDF document text
    • http://files.southcoastmamasandbabies.com/uploads/1/3/0/8/130874524/cd5ca6763.pdfIn PDF document text
    • http://megagovi.sparkleaycliffe.com/uploads/1/3/2/8/132814930/3257798.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/1/0432/8669/1998/files/xemozesajagexemuruvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4098/1660/files/kasarad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0025/1036/files/54045087733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5235/2156/files/alimentacion_deficiente.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/dabiropelegabifoviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7107/6520/files/96916196687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5865/7430/files/safesopujurawiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/46462555871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8449/7575/files/aeneid_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/rumozigiwomozutix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/73171262263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xasojikunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8074/files/trapped_in_the_closet_full.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_off00004a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A93 5496 bytes
SHA-256: 23e49c1f445dd2dc1bd90b321809fc62d1d2113821debcbc774919bdb3a2e72a
font_01_sfnt_off00005d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D22 8988 bytes
SHA-256: d27fb0005618f2d22f3c759971e2be79a42e4b08710f4466fb881d6834a7d14c
font_02_sfnt_off00007c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1E 16076 bytes
SHA-256: 203d4b37a4e38e27beb61eda8a086780d66c2d6e76bef79543a4dcf8b77e3798
font_03_sfnt_off000090c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90C5 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e