Malicious PDF — malware analysis report

Static analysis result for SHA-256 69caf30209929a0a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-04 02:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0a1f46f456ebd2c4dcf3fe55dda8518 SHA-1: 5b23ce30f6f214bf59b246ed4b91beb16fe8c097 SHA-256: 69caf30209929a0ad102dba1e021d18d82d9556caa61b07cafee642df55bffac
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The heuristic PDF_SEO_LINK_FARM indicates a link farm designed to lure users with SEO-optimized content, likely a phishing or scam attempt. The ML classifier also strongly indicated maliciousness. The embedded URLs suggest an attempt to redirect users to malicious or scam content, likely disguised as a free download.

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=pons+s%25C5%2582ownik+obrazkowy+angielski+pdf In PDF document text
    • http://files.anastasiahronis.com.au/uploads/1/3/1/4/131484603/zolujojewivokap_gibizolidezimik_zadazito.pdfIn PDF document text
    • http://files.brittanycorryphotography.com/uploads/1/3/1/3/131398134/5048305.pdfIn PDF document text
    • http://files.stephencollins-painter.com/uploads/1/3/2/6/132695865/9237261.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/1/0428/6971/9199/files/dezunukepogowidofinar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6117/files/43112668178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/33647299916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/33236723896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/mezenulelabilimafavofegur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7310/1214/files/16366450335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/pobuxagopusotezar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38967404473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/cat_416_backhoe.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: anastasiahronis.com.au 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_off000060e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E0 5716 bytes
SHA-256: 64ebbdd1978b0a64565cc58058665c6e8d6e49cbedc0bacd92218432509c06b1
font_01_sfnt_off00007493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7493 11548 bytes
SHA-256: a849f2b0d4fd379f387c81f9ebb5a3cea4a59b36585532a9f570ef984e87908c

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