Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe1854a8b4a247b6…

MALICIOUS

PDF

41.2 KB Created: 2020-08-24 01:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95e483e62afe98c740396b15d3223856 SHA-1: 1aa36cfc042b6be6d955f9f53478dcaf6dfc82cc SHA-256: fe1854a8b4a247b6010e4ac578d5f6b2d2be46b0e0edddf7f59d8a0e64398051
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and references a 'hearthstone arena guide icy veins', suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to a potentially malicious site.

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.com/pify?keyword=hearthstone+arena+guide+icy+veins In PDF document text
    • http://files.hydeparksuzuki.org/uploads/1/3/0/8/130814052/sifalogi.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/1/0429/8981/3909/files/mamaxefovumapijuremi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/58555456417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/77494030339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8911/4789/files/geometric_optics_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7183/1193/files/four_five_seconds_karaoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/45123605864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/wulavarutubonopof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9059/2422/files/blue_line_pittsburgh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/15065877718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0329/5382/files/incremental_backup_script_in_bash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/xexazivotalezikuwezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/bukujibipegikabetav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/vavog.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 5292 bytes
SHA-256: b64dd35f00fcbac0c83d37514c15681819f09b4f02306de675efb358602c0211
font_01_sfnt_off00007652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7652 9896 bytes
SHA-256: 4c96f3c0cd293fa5564e5cfa6127650a6401ba76b7c5ac07f41a74ab74da7774

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