Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc15f148ba8208c9…

MALICIOUS

PDF

59.1 KB Created: 2020-08-12 07:04:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d71064a8fa1dc8e204ec6e209403b99a SHA-1: 64ece6663136d670623d86b5b23c552a852e4e0f SHA-256: dc15f148ba8208c96589fc5a45f6972ab73bcdf441e19e1de438ef6b26dfe63c
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=anti+ragging+form+ugc+pdf', suggesting a phishing attempt disguised as a form. The presence of numerous external PDF links, many hosted on Shopify, indicates a potential SEO poisoning or link farm tactic to distribute malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=anti+ragging+form+ugc+pdf In PDF document text
    • http://files.alisaexplainsitall.com/uploads/1/3/0/7/130739142/gomunutemosaradun.pdfIn PDF document text
    • http://files.pottershousemurrieta.com/uploads/1/3/0/8/130874610/diwobibepusumo_vajiwavakorovef_wovadugupida.pdfIn PDF document text
    • http://files.klswing.com/uploads/1/3/0/7/130774972/budifadaf.pdfIn PDF document text
    • http://zogozexoz.enlivenhere.com/uploads/1/3/0/9/130969162/1745223.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/1/0435/5738/8439/files/54026286644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3423/8362/files/11236291392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/64973524263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2366/2236/files/action_verbs_worksheets_for_grade_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9947/8434/files/81656505060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5210/3842/files/simple_past_tense_exercises_perfect_english_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0679/3627/files/13712634884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0047/0438/files/45857861109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/mizo_customary_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4437/1613/files/mp_b._ed_college_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/megivibaveguzozunagawavi.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_off0000aa11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA11 5256 bytes
SHA-256: 188727f8bc6c43abe6620f0340b2a71b6e81ead166b5d26dc2f6777fcc3f84aa
font_01_sfnt_off0000bbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD6 10504 bytes
SHA-256: 700b3ded2e660a229497e0fea9bc8a9ec7b6fcf19d76ef347c6eb748599542c7

Open this report in the interactive analyzer, or submit your own file for analysis.