Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4c7deb0dc93a5aa…

MALICIOUS

PDF

42.9 KB Created: 2020-08-16 13:21:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 245dc924632d895bcf6ee281ae763e96 SHA-1: a717eff8d5f67666b58cd9bfc1face10919e5f47 SHA-256: c4c7deb0dc93a5aa92cd2f3672f88c080d240f657e6004a94fc55b6f4c545538
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'https://ttraff.com/pify?keyword=3d+animation+maker+apk+game', which is flagged as a malicious redirector. The document body also contains this URL and other links, suggesting a lure to a malicious site. The presence of multiple Shopify links, some flagged as benign and others unknown, indicates a link farm strategy. The ML classifier strongly supports the malicious nature of this PDF.

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=3d+animation+maker+apk+game In PDF document text
    • http://nataxu.lizadimbleby.com/uploads/1/3/1/1/131164250/lebovivud_dopeg_tawulufegifimo.pdfIn PDF document text
    • http://files.fustlerthefemalehustler.com/uploads/1/3/0/7/130739839/gaxiwoloxakutenuboj.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/1/0429/8991/2218/files/81629357424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/article_371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4965/5203/files/41772579830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/5315862042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8130/0123/files/31655748887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/tikefurusaniwofabazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0481/3721/files/bominevij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/wogegirugiwafuzasevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peposorutap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/petebozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/vamasivolesavanemijiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/94566703629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/84695312973.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 8

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_off000069a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A2 5200 bytes
SHA-256: d8f64d900dd2301cdff568877f8b6c190acd46bf036b9e7a907e1c78e0d9bade
font_01_sfnt_off00007b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B39 10504 bytes
SHA-256: 224caa1c71d2fd66c0a9ff6f4774911924164357e766015fe9b32aa24cfa930f

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