Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb418b11591bb39d…

MALICIOUS

PDF

115.2 KB Created: 2020-08-01 20:17:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a603561d8be7c68d9ba581b0d0e303d SHA-1: a1be27c9b2758e5acb7f17d2c1a609875edfe0b4 SHA-256: eb418b11591bb39d50082b955827c7523b0bf26e72a096e763c7547e391a2b53
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, containing a large number of external links, many hosted on Shopify. One embedded URL, https://ttraff.ru/pify?keyword=anime+town+background, is identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The document body appears to be largely obfuscated or contains minimal readable content, but the presence of the malicious redirector URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.ru/pify?keyword=anime+town+background In PDF document text
    • http://files.blessingsfromabove.net/uploads/1/3/1/8/131856212/a437195da48a.pdfIn PDF document text
    • http://files.amfccl.com/uploads/1/3/0/7/130775125/9030719.pdfIn PDF document text
    • http://files.stefiecakesandtreats.com/uploads/1/3/1/3/131380042/takewewusemerepasub.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8777/4374/files/4782824205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0124/2022/files/vemasirewakeliketupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/melagomunive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/57494122703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/fefurivakemoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/pivolusawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/77221448454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/23954723168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9064/1047/files/movogoxudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9919/9390/files/xowamiwokok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9679/2478/files/fekuxonojakogoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8384/8097/files/17230426387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/mexaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6751/4788/files/22582261770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off000167b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x167B6 11916 bytes
SHA-256: 71a6e3dc299c9d10d0b4eb8f0dab22c2e80b751ce5dc741878635fbd227e6b59
font_00_sfnt_off0000d1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E1 6588 bytes
SHA-256: c6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285
font_01_sfnt_off0000e22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22B 37024 bytes
SHA-256: 417e145ee527a114343e02cf2768e5bd510f9c0428f698bce80fd22d2de37322
font_02_sfnt_off00015610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15610 5216 bytes
SHA-256: 63aa9f634ab56b883cf0a187cef5b93a0c7cb3a7dfed55a53cea0fabb2917777
font_04_sfnt_off000189c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x189C3 11144 bytes
SHA-256: 9fc5c9eb169d312b876f0618e13143ad28519c30cfe01ba5f348f2f62cbd179d
font_05_sfnt_off0001afd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AFD3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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