Malicious PDF — malware analysis report

Static analysis result for SHA-256 b076ca197a91ad53…

MALICIOUS

PDF

47.6 KB Created: 2020-08-16 12:39:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 174c45e9a2634168ab3e901a0cd26453 SHA-1: 77e10e5895c710202909342587a7c4146b9941e4 SHA-256: b076ca197a91ad539f3e193ef42aadd67f5e3351cee0fc1813aafeafd0dedbb8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm. This suggests the document is designed to drive traffic to malicious sites, likely for phishing or malware distribution.

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=embriologia+aparato+reproductor+femenino+pdf In PDF document text
    • http://files.megangrimesphotography.com/uploads/1/3/1/3/131378791/606b5d6116.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/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/1/0428/6296/8991/files/jesus_bleibet_meine_freude_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9096/8729/files/lazupurufezuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/bekosirexopujiwuzufunina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/nunewerokajixovima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/68048495054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/61987620109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3004/files/a_guide_to_descriptive_writing_practice_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/rodegomezog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/1067975841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/23573365865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4162/files/62019797141.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 2

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_off00006950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6950 1888 bytes
SHA-256: 1e8015dbf815a4a5e0b3072ae358f2090bd34f68f2f2073d540e7a5088a11d52
font_01_sfnt_off0000727e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727E 5396 bytes
SHA-256: 1f493d6ed912169ae795019a5ddbdbec2d7565a0e58a8ff9237e116abea9e776
font_02_sfnt_off000084c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C0 13908 bytes
SHA-256: 3162c761d0a4299dd563804c7d558c007f0f755bab58c27edb9813513f282f95

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