Malicious PDF — malware analysis report

Static analysis result for SHA-256 10792425a63209e8…

MALICIOUS

PDF

47.5 KB Created: 2020-08-28 03:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6745de26755e9b6d957ed11db3b95f12 SHA-1: ac843573e4f369d05baf04b202e05d439c59752c SHA-256: 10792425a63209e8621da684a41ca16bd87db5a71b9238199311dd338ba2afdc
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to the URL https://ttraff.cc/pify?keyword=lspd+vehicle+pack. This URL is identified as a malicious redirector. The document body also contains this URL and other PDF links, suggesting a phishing or scam attempt to trick users into downloading potentially malicious content. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence score support the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=lspd+vehicle+pack In PDF document text
    • http://files.senbisamassagetherapy.co.uk/uploads/1/3/0/8/130813778/2731752.pdfIn PDF document text
    • http://files.ipestcontrols.com.au/uploads/1/3/1/4/131453146/dulorufigomasisox.pdfIn PDF document text
    • http://donide.inspectnj.net/uploads/1/3/1/3/131398455/fovunivu.pdfIn PDF document text
    • http://files.seashells-nursery.org/uploads/1/3/0/7/130739238/9933c619.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/1/0449/9944/2590/files/double_cardan_joint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/barangay_election_2020_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/alt_codes_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54344474436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/nuratexutoxasaxumuzol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/29005412056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0508/3811/files/94803989297.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off00005503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5503 6812 bytes
SHA-256: 705a40f2f1299da93398ac562f39fb8e280a7b0d058145836d6dafd55d8ad212
font_01_sfnt_off00006636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6636 5128 bytes
SHA-256: 34e70527b713f5d4155b4989d3669790b7a53546ed9c1cfe577e621b60cfdb93
font_02_sfnt_off000077ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AE 10456 bytes
SHA-256: 95838ad6e579fd889638ffc3522229ca1245bdbff7f1409fbade5702bf32fd84
font_03_sfnt_off00009bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB2 16164 bytes
SHA-256: 58b04abd4a2cde557a820e918121ec9738f9de37d4949e7b8c9e4ecf18f5695c