Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aa62caa7b6a7895…

MALICIOUS

PDF

49.0 KB Created: 2020-07-29 22:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4967f9aeeb2b3aee643615c7b2571eb0 SHA-1: 7854ab883b6b23ac913bdcfaae21f8be4a736b23 SHA-256: 0aa62caa7b6a7895a3cb0eb82ff27f6753a2f88dc9acb9d30247dca569fdd597
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector (https://ttraff.cc/pify?keyword=s%25E1%25BB%25ADa+file+pdf+b%25E1%25BB%258B+ng%25C6%25B0%25E1%25BB%25A3c). This redirector is likely used to obscure the final malicious destination. The presence of a large number of external PDF links suggests an attempt to create a link farm for SEO manipulation or to distribute further malicious content.

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=s%25E1%25BB%25ADa+file+pdf+b%25E1%25BB%258B+ng%25C6%25B0%25E1%25BB%25A3c In PDF document text
    • http://files.incanonmedia.com/uploads/1/3/1/3/131380163/zomomadutoluba_kupazijeganifis_kubiwereg.pdfIn PDF document text
    • http://files.schoolstaffsafeguardingquiz.co.uk/uploads/1/3/0/9/130969470/5524173.pdfIn PDF document text
    • http://files.ladancestudio.com.au/uploads/1/3/1/3/131380263/tabegoxag.pdfIn PDF document text
    • http://files.srrlsf.com/uploads/1/3/1/3/131380868/4f04903295aa5.pdfIn PDF document text
    • http://files.sikhsaaj.com/uploads/1/3/0/9/130969708/fukinokola-lomavezikasakam-bepatamirul.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/1/0431/5955/2166/files/sigiduzokebefesenab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/felotuvoneseda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/jiwiwunogugevelebor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3523/8301/files/26184887059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3087/0173/files/wowimuledoxulowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4521/5637/files/bemitubuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3557/files/55400645226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94215193789.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00006937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6937 5436 bytes
SHA-256: 9d7ae77a1a636e5e3b53175d8ac5da46c81d1977c2ade17d92d8718aa714a71e
font_01_sfnt_off00007b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 10980 bytes
SHA-256: d5e606a80e6babd42c3abc034f3ca83818eb72d6e533a5363185b7ca738680a0
font_02_sfnt_off00009f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F8B 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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