Malicious PDF — malware analysis report

Static analysis result for SHA-256 7911a249473b454a…

MALICIOUS

PDF

43.0 KB Created: 2020-08-19 21:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0e1dba6ce4d98166c8c1ce4ee8e21e02 SHA-1: dfe177c91765d6dfa2e9d5cbf644c807bf5703fa SHA-256: 7911a249473b454a01fe310121181bd78ff83b0a5377f95bfd491001258249f5
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution T1071.001 Web Protocols

The PDF contains numerous embedded URLs, including a primary malicious redirector at `https://ttraff.com/pify?keyword=gsheets+python+api`. The document body, though obfuscated, also contains this URL and references to other PDF files, suggesting a link farm or redirection scheme. The heuristic `SE_CLIPBOARD_COMMAND_LURE` indicates the document attempts to trick the user into executing commands, further supporting a malicious intent.

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.
  • 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
  • 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=gsheets+python+api In PDF document text
    • http://wiroduk.elizafreed.com/uploads/1/3/2/3/132303382/gavoxusakudoku.pdfIn PDF document text
    • http://safimote.rpnsottawa.com/uploads/1/3/2/8/132815094/dezuf-tusakog-sumedanup.pdfIn PDF document text
    • http://files.victoriaesquivel.com/uploads/1/3/2/7/132740488/ralaposajodajazi.pdfIn PDF document text
    • http://files.gloryb2g.com/uploads/1/3/2/7/132740249/varezef-fuxim-lupoj.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/1/0429/1526/6713/files/sijenab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/tetafurunorevutusexiwave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/vurab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2117/1864/files/catalogo_de_abrigos_price_shoes_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8829/5576/files/92800636794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4248/7963/files/320359916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5047/4399/files/paracetamol_mechanism_of_action_applications_and_safety_concern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/jogabifowuzavedisibiti.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D04 4700 bytes
SHA-256: 686720666bc24ce254911959d5b011c9e62e6bb5fbb1f27e70d068929e6eb437
font_01_sfnt_off00006cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFD 10712 bytes
SHA-256: 655a446f7b3c587a1f132dbeb6564ee26555e7f757955645fae1cc801d91b78c
font_02_sfnt_off000091a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A4 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378