Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ff118d3dbcf9dc9…

MALICIOUS

PDF

54.1 KB Created: 2020-08-17 04:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: afab2512d5d09dd58291323efcb64c1c SHA-1: 87a579c94e1d1466fb9051b93b0d971c4a45653b SHA-256: 5ff118d3dbcf9dc9e45502b12371f51ca6db08c6ed354b9cdbdd8d77c1f4428a
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body and heuristics indicate a lure for software downloads, specifically mentioning 'Java for Minecraft 1.7.2', which is a common tactic for phishing or malware distribution. The ML classifier strongly indicates maliciousness.

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=java+for+minecraft+1.+7.+2 In PDF document text
    • http://files.wildflower-herbs.com/uploads/1/3/0/7/130775506/1961027.pdfIn PDF document text
    • http://files.morningsideunitedchurch.org/uploads/1/3/1/4/131406288/b6c549d76b9dd7f.pdfIn PDF document text
    • http://files.rainbowfarmsmaine.com/uploads/1/3/1/4/131406274/75a56c6.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/1/0439/5106/3195/files/mugisokivalepakuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/luzigilisimemiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/91956474158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/93032959737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/37021716580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/julian_date_calendar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/61191022204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1653/4685/files/96799546454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/40246475841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/acknowledgement_for_training_project_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4136/files/baby_crib_sheets_target.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2328/files/collins_grammar_for_ielts_vk.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 6

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_off0000950a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950A 5164 bytes
SHA-256: 55b7b4af18ec36ca9a2af41b1390aa066b945a7ab7aab2f19d3740c5016b409f
font_01_sfnt_off0000a6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A1 10892 bytes
SHA-256: 75ec2176b77630226a53be58aff07da07f7ece3ad494e820d073096cac8e62f4

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