Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ee2876a97786af…

MALICIOUS

PDF

43.2 KB Created: 2020-08-11 16:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aed7d0181eb8b95d32332e6915c5ca28 SHA-1: d93fa755a23133d82860329153bbabe21a39c94c SHA-256: 41ee2876a97786af9f1f206fb6e28f07d27913b9093c5839aec2c74ff0adfef5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a primary link to a known malicious redirector at `https://ttraff.com/pify?keyword=software+analysis+tools+pdf`. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier strongly supports the malicious verdict.

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=software+analysis+tools+pdf In PDF document text
    • http://files.globalcallministries.org/uploads/1/3/2/6/132681513/0d1321f9.pdfIn PDF document text
    • http://fipuxez.littlesprouts.org.uk/uploads/1/3/0/8/130813420/2fef2.pdfIn PDF document text
    • http://files.kimberlystories.org/uploads/1/3/1/4/131409677/pasenaj.pdfIn PDF document text
    • http://files.paulguilletphotography.com/uploads/1/3/1/3/131383651/d77cad5ccc96500.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/1/0439/4031/5294/files/90789457016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0501/6225/files/70368085213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/rosafutazun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/akutagawa_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/pifezalofenidusasepadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/mtg_arena_crashing_on_startup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12457093378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2933/0082/files/lalozilajokusoropivelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2232/5672/files/aac_bricks_manufacturing_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/feroroloxuxipanawewoboz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/52404952465.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_off00006a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0E 5332 bytes
SHA-256: 345a9ff3b9c14321caef83d591a0e004cd0d3c94b6bd0e652d2e02fd700e0a79
font_01_sfnt_off00007c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C49 10548 bytes
SHA-256: e79c2ad083c9d6343bdf054d4567c879d9826242c2c955285824f2b6d13c431c