Malicious PDF — malware analysis report

Static analysis result for SHA-256 8360fcee76107a92…

MALICIOUS

PDF

42.9 KB Created: 2020-08-21 03:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae87df5aa6c36b170f395b8acff92375 SHA-1: a725ce81ca1375726ab8fdd42610595ea9019f14 SHA-256: 8360fcee76107a921e8b3480582a25ee55561a1371840b5d70877c322c2e485e
282 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript T1553.005 Security Software Tampering

This PDF document is designed as a lure, presenting a 'Win 7 activator' to trick users into downloading potentially malicious files. It contains numerous links to external PDFs, many of which point to redirectors like 'https://ttraff.ru/pify?keyword=win+7+activator+64+bit', indicating a link farm or phishing campaign. The document also explicitly instructs users to disable security software, a high-risk behavior for unsolicited files.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 8

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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.ru/pify?keyword=win+7+activator+64+bit In PDF document text
    • http://files.mgle-germanschool.org/uploads/1/3/1/4/131452887/5595693.pdfIn PDF document text
    • http://files.alisonalbrecht.com/uploads/1/3/1/3/131378774/wetej_kanaxobonebufix_kilulipoxisov.pdfIn PDF document text
    • http://files.kskssgroup.co.uk/uploads/1/3/0/8/130874655/nibugodukobu.pdfIn PDF document text
    • http://jasuv.mohannadgharaibeh.com/uploads/1/3/1/6/131637240/17d2c2c.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/1/0432/6916/1126/files/libro_automatizacion_industrial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/psicologia_anormal_david_barlow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/35161322001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/sotuvemanes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/49419290088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevimija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/gujajerederuferiloviviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/jinubenebowotos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7163/3563/files/bpsc_non_cadre_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7300/1889/files/cyber_hunter_apk_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/recommended_routine_results.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FB 5120 bytes
SHA-256: bf1a8cf5c13672e9c768dd15b923f1b6771a20dc1a2df48f9cf22538892a8375
font_01_sfnt_off00007786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7786 13312 bytes
SHA-256: 6dad7d69aab319a36fd357493935c38289d14917d77928454092e2711c9e071a