Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba0c7407c72ad4d…

MALICIOUS

PDF

122.8 KB Created: 2020-08-07 16:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 810715c7d23a74aa327a0702d927764f SHA-1: 7f92856f46030e648a88a719e60b261e13347885 SHA-256: 9ba0c7407c72ad4da169c47d2685e3fdf129b64a6a7b5caba7078988e0818fd8
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating an attempt to distribute multiple links. The embedded document body text, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted from this sample.

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=amorphous+solid+dispersions+theory+and+practice+pdf In PDF document text
    • http://files.dianashepherd.co.uk/uploads/1/3/0/7/130739144/nafav.pdfIn PDF document text
    • http://niraguso.rubicreations.com/uploads/1/3/1/1/131164250/567692ad.pdfIn PDF document text
    • http://files.alliesadornments.com/uploads/1/3/0/7/130776875/mizezubaxeza.pdfIn PDF document text
    • http://files.clubroyaleboca.com/uploads/1/3/1/4/131407424/8364201.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/1/0430/6888/3097/files/51535251892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/jubiguba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4354/4488/files/bk_precision_1550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/electric_fence_7_days_to_die.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5443/2410/files/razidikodeweseka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/frases_hechas_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4838/7239/files/68458852402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6740/0601/files/angularjs_4_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/56856581747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3403/9704/files/19333598993.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 7

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_off0001a1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A1A7 5484 bytes
SHA-256: 071d950808abd4acd4c66a3a1fb34f6b298d9cc3a8253cb258b0b06fada4db2e
font_01_sfnt_off0001b42b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B42B 12784 bytes
SHA-256: 52e53f401f1f3db22e2caba9640ffa9968e2e9cb67c14d525969e8c5257bf3a0

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