Malicious PDF — malware analysis report

Static analysis result for SHA-256 b120033b07f4ad96…

MALICIOUS

PDF

54.4 KB Created: 2020-08-08 21:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46a854927c89f702232f1f77947d661c SHA-1: 3a2b3d038809563741b9f5a0b3303ae0e36df03c SHA-256: b120033b07f4ad96feb6f7bb1cd3f93365919a4e1346d275b52853c482049e23
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The document body itself is heavily obfuscated and contains the malicious URL, indicating an attempt to disguise the malicious intent. 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.ru/pify?keyword=adjectives+from+a+to+z+pdf In PDF document text
    • http://kakab.wmcyo.org/uploads/1/3/2/3/132303382/rudilunipiju-pemufugaf-lipevakifed.pdfIn PDF document text
    • http://terujosif.paddockcleaneruk.co.uk/uploads/1/3/1/6/131607131/bdb064f7dc5.pdfIn PDF document text
    • http://files.arkacia.com/uploads/1/3/1/8/131856852/3bb6179b2ce70.pdfIn PDF document text
    • http://files.brianskahn.com/uploads/1/3/1/6/131607053/barudir-vukef.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/1/0430/3945/7431/files/statistical_quality_control_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/34783499319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4201/1286/files/zulowovela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1294/8121/files/50128401872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/anencefalia_genetica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0718/7872/files/5th_grade_math_problems_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/masomusikonuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/art_basics_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/34249313718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8845/files/kigagulobudetimuzowis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9182/0695/files/71468084833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/reboxogiwifenopawaga.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
🗂 Part of campaign: arkacia.com 3 samples

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_off000089e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E8 5444 bytes
SHA-256: 6cd1f97dbbf41c845a23f05d5c40bec2bd1ec52a691b16923a655f9fdb1d6b27
font_01_sfnt_off00009c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C6C 15784 bytes
SHA-256: 0dd66cd1554c5da60d25a0f6e94bcb4b482024b1a49d86a9eb91f2504525ed05

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