Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f60a709dd55c6b9…

MALICIOUS

PDF

45.7 KB Created: 2020-07-31 15:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8677799b68d123eaf17edefbf8fb2d8d SHA-1: 97395244b87561a96157f14c23521b7acbdb91bc SHA-256: 7f60a709dd55c6b909ee6330754cd866f85ccb595c6b2b7f1306a6e8f62be682
194 Risk Score

Malware Insights

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

The PDF contains numerous links to SEO redirectors, including a critical finding of a link to known malicious infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Sims 4 skidrow', suggesting a lure for potentially pirated software or a scam. The ML classifier strongly indicates maliciousness, and the presence of many external PDF links points to a link farm or phishing campaign.

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=sims+4+skidrow In PDF document text
    • http://files.growingwithbrock.ca/uploads/1/3/0/9/130969751/kemugiwa.pdfIn PDF document text
    • http://files.kcpanhel.com/uploads/1/3/2/8/132815961/1055807.pdfIn PDF document text
    • http://files.charleysplacemorrismn.com/uploads/1/3/1/4/131453188/8937086.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/1/0437/9394/0641/files/99005733529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9934/8374/files/7173389178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2724/1887/files/4938876543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5520/8858/files/dejovupowarakipidukede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1791/9909/files/43773252673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9623/6447/files/49208181689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/natazinoluzawaxonized.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2798/8634/files/mujukujabawujagezixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/xuwifigomotovari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/vopepefik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/991414670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4382/3511/files/ramumosa.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 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_off000064ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FF 5024 bytes
SHA-256: 8ce25a3336f4582ebc2b245d613d3f7b656cf5ea4d6f1219a598343fee0026af
font_01_sfnt_off000076b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B7 4560 bytes
SHA-256: e942f913b6f34d8ab52e627ec7b520ff5ec6b8682d8be56e9a009d53e605dcae
font_02_sfnt_off00008630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8630 10328 bytes
SHA-256: b2b3c15f29530d974afe8c56599ecc56b2e91964e6f798d579b463cd0ed26d67

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