Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50b925ef4de6fa2…

MALICIOUS

PDF

46.3 KB Created: 2020-08-19 10:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7c391d1a3bcf7d0db11b0970a676b22 SHA-1: 72ce95162a6b857ba8183e6d6dce27a5cba3483b SHA-256: e50b925ef4de6fa2378d17f18631f0f15989e293507288344cc8ab12519e2f2e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=lonely+planet+thailand+travel+guide+pdf'. The document body, though heavily corrupted, appears to reference 'Lonely planet thailand travel guide pdf', suggesting a lure to disguise the malicious intent. The presence of a link farm and a critical heuristic firing for a malicious redirector strongly indicates a phishing or malware distribution attempt.

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.ru/pify?keyword=lonely+planet+thailand+travel+guide+pdf In PDF document text
    • http://zalavo.cotwholesale.com/uploads/1/3/1/4/131406821/9585429.pdfIn PDF document text
    • http://files.stpatswaukon.com/uploads/1/3/0/7/130739069/7a805aebeb8.pdfIn PDF document text
    • http://files.theproseccoproject.com/uploads/1/3/0/7/130775666/532726fbfd.pdfIn PDF document text
    • http://files.francescalalanne.com/uploads/1/3/1/8/131872015/vesobezukog_damesivusi_tesuz_mulidoxaji.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/1/0432/7145/4883/files/analytical_writing_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/wurepezusedafanolazixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4015/1454/files/16083824241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/neoliberalismo_en_mexico_exito_o_fracaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/aambala_tamil_movies_hd_print.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/bootstrap_4_full_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64255738852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6721/files/doxadaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3434/5625/files/short_biography_of_albert_einstein.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2735/5032/files/android_messages_app_keeps_crashing.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 4

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_off00007377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7377 5228 bytes
SHA-256: 14d999ba20d4ce0cc7339a153f01ab7490895daf8d97d4a0ef2b1649212c0a72
font_01_sfnt_off0000854b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854B 13484 bytes
SHA-256: 59f6bedc1c9bd5283606b1e3c6bf5877e4f8b2f7aacaebdb3ebc4a2432c8efb7

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