Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d61d1adb17ed6a1…

MALICIOUS

PDF

37.8 KB Created: 2020-08-15 03:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f22bfe09f2ea3e7daff60d69e08c745d SHA-1: 312348a8ee2b40587fb0e2b0d2dcb89537311516 SHA-256: 9d61d1adb17ed6a1e3eec6f9c0477034a616189c8271082b747381d783a40528
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, and the ML classifier strongly indicated maliciousness. The document body, though malformed, contains text related to 'applied ballistics long range shooting pdf' and the malicious URL, suggesting a lure to trick users into clicking on potentially harmful content.

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=applied+ballistics+long+range+shooting+pdf In PDF document text
    • http://files.dovernewlife.org/uploads/1/3/1/3/131383838/fovanu-dowop-kutekijet.pdfIn PDF document text
    • http://files.cfg-ecommerce.com/uploads/1/3/0/7/130776276/kasebulejijewamibabe.pdfIn PDF document text
    • http://jiretifa.wegnerauctioneers.com/uploads/1/3/1/0/131070458/mixipawe-kapiwofadunuk.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/1/0430/1117/8649/files/bang_bang_telugu_movie_utorrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/dozovalitawizazune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/30670147342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/votemokopotepopezimur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5221/2130/files/scope_management_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/sowezogarakudowowoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7235/4459/files/tomudinak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/vixalonerarimadarol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/motodivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/98976468719.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 6

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_off00005397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5397 5544 bytes
SHA-256: 42dc0b1bf32b86dc7fe77dd17c48e0979c5e2cc41c78b71c0a775aa3408b593f
font_01_sfnt_off0000665a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665A 10604 bytes
SHA-256: a5a57d9f7b837fbca60dee3cdbc0b17085da6dbf2652b0c800013558661129c9

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