Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e3a4299bdcfa76…

MALICIOUS

PDF

79.7 KB Created: 2020-08-12 21:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5989159766df4e16f76eb47d607a85b1 SHA-1: a6506a1a23ab0cd84fafd884be60f3accb8c8093 SHA-256: 89e3a4299bdcfa76c086cf0e3ca1f4ec7eb570c5328736c538750578a395a985
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with one heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the document's primary purpose is to redirect users to malicious content, 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.ru/pify?keyword=arguedas+obras+pdf In PDF document text
    • http://files.approfessionals.us/uploads/1/3/0/7/130775936/2616315.pdfIn PDF document text
    • http://files.lauriesdance.com/uploads/1/3/2/6/132681303/65ecc0979b4016.pdfIn PDF document text
    • http://files.deweyfleszar.com/uploads/1/3/1/4/131483343/816272.pdfIn PDF document text
    • http://files.matthewdjaeger.com/uploads/1/3/1/8/131857631/3304954.pdfIn PDF document text
    • http://files.svgreatschools.org/uploads/1/3/2/7/132741375/13388c10e7761.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/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4010/3845/files/jofejudomibikulawote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7697/6791/files/arboriculture_fruitire_biologique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5267/6773/files/neferawogawajameletibag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/algebra_2_common_core_textbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/tanaxofanomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/56939906489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/58789703328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/32009552384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/le_marxisme_rsum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/is_driver_booster_safe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/fuzigu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF806 5308 bytes
SHA-256: 220d9ba6f6ee26363ea66043eaa920cce701c80f051ea6968164a5d5be70a7b0
font_01_sfnt_off00010a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A18 11740 bytes
SHA-256: 0136a76f8b5f441ea71e3854f1ffcafc6c5d06555eeb04489be59273f298bc04