Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7bc7bcfd23808f7…

MALICIOUS

PDF

111.8 KB Created: 2020-08-01 13:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b48a6128eb13ceb0e775416c25906b2c SHA-1: 8365a9f5c0ed4610586996950b9ea392bdeeb471 SHA-256: d7bc7bcfd23808f75cc2780f11cc4160ed35652aef65971e379eee3986479a3f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1059 Command and Scripting Interpreter

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same URL found in the redirector heuristic, suggesting it's the primary lure. The presence of a 'download button' heuristic further supports a social engineering attack vector.

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.com/pify?keyword=what+is+com.+lge.+launcher%252A In PDF document text
    • http://files.healthwestrealty.com/uploads/1/3/0/7/130776416/a6a5a3e718.pdfIn PDF document text
    • http://files.karategma.com/uploads/1/3/0/7/130775341/1707223.pdfIn PDF document text
    • http://files.spiritusnw.org/uploads/1/3/1/3/131380297/39f4edb7bba.pdfIn PDF document text
    • http://files.tonypalermolifecoach.com/uploads/1/3/1/4/131437740/eaf0f757.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/1/0429/5308/0991/files/sawumol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/kowekuzufefipedewaboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/99376152244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/bars_and_melody_hopeful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9841/3987/files/sequoya_prep_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6568/8743/files/46664091898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/73597724392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0597/5462/files/toditorutoxurifolikexuvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6355/8815/files/sivabitosobulaniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/futupasusukenatofipul.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_off00016081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16081 5328 bytes
SHA-256: 67766494876f3307affb7248ea0a91c4b56c6f2e9c5dd81a858fe0f51b095b0f
font_01_sfnt_off00017288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17288 1936 bytes
SHA-256: 84daf345e21b08075a6e329eeacb0a13a0447ddcc3efc64e98a9a4ab9c6a9d9d
font_02_sfnt_off00017bc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BC9 17460 bytes
SHA-256: 8193f3a69fdfc33e3ea195866b3d92fc315552ddf43e71439163730ec154db78