Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0149742c12877ff…

MALICIOUS

PDF

52.7 KB Created: 2020-08-19 16:02:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15f775a47fe67ad172d9a0df567ca351 SHA-1: 37896629159ec5f982ff0df592af20d456cbecdf SHA-256: b0149742c12877ff78b75aa27b24b97b9eb7eaac218c2e16d37ae111c7955daf
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link to 'https://ttraff.cc/pify?keyword=affinities+of+prototheria+and+metatheria+pdf', indicating a phishing or malicious redirection attempt. The ML classifier also strongly flagged this PDF as malicious. The document body contains obfuscated text and multiple embedded URLs, further supporting the malicious intent.

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=affinities+of+prototheria+and+metatheria+pdf In PDF document text
    • http://files.livealifeofservice.org/uploads/1/3/1/0/131071240/d4c5b2d96e1cfb7.pdfIn PDF document text
    • http://xubifes.aleksandrvoinov.com/uploads/1/3/1/4/131407089/3395ac9f474.pdfIn PDF document text
    • http://files.rewoca.org/uploads/1/3/0/7/130776607/jawonamelefo_xowavozuped.pdfIn PDF document text
    • http://files.trackingclubofma.com/uploads/1/3/0/7/130738993/5062284.pdfIn 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/1/0433/9076/3175/files/25177313152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9065/7951/files/fupugerudenepisativumijoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/vipita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/zisokoxolako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0319/1193/files/angularjs_export_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/wobetefawadidinemozaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0491/9971/files/college_panda_writing_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9767/6192/files/libros_para_aprender_italiano_desde_cero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/mugozodedazuwanuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/34281002695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/tivutalaxofurumofame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/83534383755.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000841d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x841D 5028 bytes
SHA-256: d0280f1a7912352de9fe8fb5fe63d74be68d848d2fac2e6f8a35e303ef636bda
font_01_sfnt_off000094ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94FF 10032 bytes
SHA-256: af63cc9baf3cc03e9a01a933166b026f76504d7f64696b9cd817371dc85367fd
font_02_sfnt_off0000b75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB75F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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