Malicious PDF — malware analysis report

Static analysis result for SHA-256 27d41b50f6e85f98…

MALICIOUS

PDF

57.7 KB Created: 2020-08-31 06:44:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c10c514b7f8a7708804f4cc1307d64d SHA-1: cb48828b34b900a6f5ecc940c64d4088fe377768 SHA-256: 27d41b50f6e85f985805c33b3ce51fd08b02b9afb45537ff1c681709aa09574d
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text fragments and URLs that suggest a lure related to game cheats ('hack de monedas agar. io android'). The presence of numerous external PDF links, including one to 'cdn.shopify.com', indicates a link farm strategy to distribute malicious content. No scripts were extracted from this sample.

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/wix?keyword=hack+de+monedas+agar.+io+android In 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/1/0436/3301/6982/files/jigozemosoderivorofif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/66059317780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6699/0498/files/22712180440.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0aab01_c06a0628eb014ec09e873ea2b47e840a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f09a9d_b32a9ed73b4e4a9c8ab269b574c78246.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/de60da_52f1e279a45a4e688e7c9f942741ab15.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b7306e_586d8ecef92047c29022b78071cffd55.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f0e51d_707d62ccf83a4d168a7144424034cd7d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1030/8766/files/zipinikurobiwoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/how_to_configure_vein.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000b7cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB7CB 19780 bytes
SHA-256: e7c5e079d131f6661f442c5bde88ab150c8133f7d298443271aff91e8c55c047
font_00_sfnt_off000073b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B4 2940 bytes
SHA-256: 29b259eaf349ac61a23541eb564545655ce7d79f48e7231f4678e23a0c983a44
font_01_sfnt_off00007e33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E33 5284 bytes
SHA-256: 3f11448cf025e0664381b5f5476900f2b8fcc6690f8b75d82c6086181d7d3a2e
font_02_sfnt_off00009011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9011 12304 bytes
SHA-256: c87b7cabdf15bb30e05ff36541e7a1dc7fc0fb6ad0b110933dc8b4c8bb4c4430

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