Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f2afd407f47c132…

MALICIOUS

PDF

42.5 KB Created: 2020-08-20 02:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 940bb4c4e5da20d57cdb7cdcb08125b1 SHA-1: aa0e095122be289cf91e658d89cf359ec9061300 SHA-256: 8f2afd407f47c1325b8cc30708814a62119c53aeac7db07675e8f8212b9b6945
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body text, though heavily obfuscated, contains a string that appears to be a lure for a 'machine maintenance log template'. The primary malicious URL identified is ttraff.cc, which is known to host redirectors. The file also contains a large number of other PDF links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final destination.

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.cc/pify?keyword=machine+maintenance+log+template+excel In PDF document text
    • http://files.yrdyouth.org/uploads/1/3/0/7/130739144/tusonokevomop_zutibinajir_numilem.pdfIn PDF document text
    • http://files.nourishmeantshop.com/uploads/1/3/0/7/130775380/jufuweroxobedub.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/1/0429/0094/7103/files/fugadusixevilujogoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/vosugunubaxowavudaxumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22700630349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3823/6062/files/52697547346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/47513221477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/my_first_day_of_kindergarten_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/jutemimomafivuzavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9670/files/dijideval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/zeraromak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0996/6239/files/samibozonanexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5959/3894/files/88240480578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/antisocial_personality_disorder_questionnaire.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 4

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_off00006918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6918 5148 bytes
SHA-256: 282527e945d61a109a428110deb2eaffb82fb9b915d2ee4914e78d48be2cfa00
font_01_sfnt_off00007a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A75 10448 bytes
SHA-256: e7f8e623cf40d008530714cdec3385b532799252e5f66fec4ab00fbe0b448459

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