Malicious PDF — malware analysis report

Static analysis result for SHA-256 bead493bcf6bc472…

MALICIOUS

PDF

73.3 KB Created: 2020-08-01 06:07:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12ea6fbf1c273545dba8f470a8dfc667 SHA-1: 6142eef76c459b43cfefb313bf6f81ad54d2e4b8 SHA-256: bead493bcf6bc47243dbb1545ddbfb6adac62d1ff17e9f7d71b05cb655555560
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, which is also present in the document body. The ML classifier also strongly flagged this PDF as malicious. The link leads to a redirector that likely serves malicious content or phishing pages. The document body itself is heavily obfuscated but contains the malicious URL.

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=warcraft+the+roleplaying+game+pdf In PDF document text
    • http://files.onecreativechoice.com/uploads/1/3/1/3/131383269/4220151.pdfIn PDF document text
    • http://files.juliejesternewman.com/uploads/1/3/0/7/130739265/95784b84376f.pdfIn PDF document text
    • http://files.discountinsulation.net/uploads/1/3/1/3/131398093/5888154ec52a02a.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/1/0433/0687/7080/files/29426312843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3899/7669/files/39353018232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7230/4805/files/power_king_tractor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7710/5832/files/simupajonipebuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3495/files/52806562380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/64628673886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/kuvofomuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9594/8454/files/54815924977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/92301662697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8076/9951/files/danovopotikidemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/49174300718.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_off0000e038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE038 5504 bytes
SHA-256: c791b25deb687eca8aa43e1d2b9ad4943ecfcce20cbe4e5b87cc87b9f9c6eee8
font_01_sfnt_off0000f2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DC 11548 bytes
SHA-256: 32028870a1bdd878a552d728dceeefb61e502fd9abe45944034ef887c5c4d409

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