Malicious PDF — malware analysis report

Static analysis result for SHA-256 a09dfcd2eda96096…

MALICIOUS

PDF

47.0 KB Created: 2020-08-11 20:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c66511eb16f0b81689ba4331f38d226 SHA-1: 39462dfec465451432951d810ff7c263184b6392 SHA-256: a09dfcd2eda96096e04572a2f0f5838300b9269fd975a76f0ec0b8b807afe57e
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a Java 8 streams tutorial. Additionally, the document instructs the user to copy and paste content into a command-line context, likely to execute further malicious commands. The presence of numerous links to PDFs hosted on various domains suggests a link farm or SEO poisoning tactic to distribute malicious content.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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+8+streams+tutorial+pdf In PDF document text
    • http://files.nphsjrwolfpack.com/uploads/1/3/1/4/131483253/pageponiputi_gosalobire_vopepas_fatibo.pdfIn PDF document text
    • http://files.starsidepta232.org/uploads/1/3/1/6/131636562/mubif-noraluvugavija-bafowulogal.pdfIn PDF document text
    • http://files.timmahekdds.com/uploads/1/3/1/4/131406303/birep_jabekadoroju_lisafa.pdfIn PDF document text
    • http://files.beautextensions.com/uploads/1/3/1/6/131637714/gijeregimivi.pdfIn PDF document text
    • http://files.ronandthaophotography.com/uploads/1/3/1/6/131637108/bidek-gukabiguga.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/1/0434/4479/7606/files/22830046063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4982/6969/files/56194271130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6492/4062/files/usine_acide_sulfurique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/borutazaweluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/arabic_to_english_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6630/2376/files/11811564499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/gobikozufafejilerajakidir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/escape_from_tarkov_key_bindings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9646/5823/files/bowevogisifewifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/maziwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3456/5025/files/60800248236.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFF 5432 bytes
SHA-256: 603d5c9446c278c70b4c5510b948898a6942eb4dde7fd46816f2adc63dcf8b3d
font_01_sfnt_off00007d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D63 15168 bytes
SHA-256: cc3e6cbf02924fe54cf48c4af88daef8b15453ee5fa12cdecb15ae08639cbddb

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