Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a1a391553df4e6…

MALICIOUS

PDF

43.6 KB Created: 2020-08-27 15:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b71b881b92aef2c0e07271f60114c01 SHA-1: ad1d4b9bb33c6c1ce685808dabeac0b252fab87f SHA-256: 40a1a391553df4e63f75e19ad4416680234f62971fa80d50b1c933fd2729a0ff
202 Risk Score

Malware Insights

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

The PDF file contains a prominent link disguised as a download for 'Autocad 2014 crack download 64 bit free'. This link redirects to a malicious URL (ttraff.cc), indicating a phishing or malware distribution attempt. The presence of a large number of external PDF links, many pointing to benign Shopify URLs but one critical redirector, suggests a link farm designed for SEO poisoning or traffic redirection. The document body itself contains the malicious URL and a call-to-action phrase, reinforcing the lure.

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.cc/pify?keyword=autocad+2014+crack+download+64+bit+free In PDF document text
    • http://files.palmettoiteach.com/uploads/1/3/1/8/131856409/reketozulimuvu.pdfIn PDF document text
    • http://files.missmacra.com/uploads/1/3/1/6/131637953/ruduvilog.pdfIn PDF document text
    • http://xopubasaz.thehearttoserve.org/uploads/1/3/1/3/131380500/rekisumex.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/1/0427/8091/7926/files/lukalunufepajidivarolikad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8881/0918/files/tipos_de_anemia_hematologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4861/5579/files/naxifawidokonoxurenuvimom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8958/3514/files/totavavaliweru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3526/1085/files/uncle_bob_clean_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1103/7589/files/solul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/jquery_get_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/bezimozaratomumuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/sosavusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6583/files/consumo_de_alimentos_transgenicos_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9590150980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0226/files/xigejemedotofeximokoba.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_off00006b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B38 5692 bytes
SHA-256: f0d216a887925c3502e8fc0d911a7732f5e2e72893d6e35e5ab2cb05871614eb
font_01_sfnt_off00007eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB4 10084 bytes
SHA-256: bcb6ec00c9c8abc3d59b891f3d351102742582b25248050416ce319891c23054

Open this report in the interactive analyzer, or submit your own file for analysis.