Malicious PDF — malware analysis report

Static analysis result for SHA-256 114131089b0780d7…

MALICIOUS

PDF

50.5 KB Created: 2020-08-03 07:19:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdb5966412511aa5fe3f5e102f4b37de SHA-1: 3089bf62d5cedfea206a712ee23859bc1550235b SHA-256: 114131089b0780d75ad4b059ca208ac8900cf72cb8730c724869b67de841eb52
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector service (ttraff.cc) which is flagged as malicious. It also hosts a large number of external PDF links, suggesting a link farm or SEO abuse tactic. The ML classifier strongly indicates maliciousness, and the embedded URL points to a known malicious redirector.

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=catalina+island+fishing In PDF document text
    • http://files.thecedarwoodproject.com/uploads/1/3/1/6/131607712/pekomeferagewu.pdfIn PDF document text
    • http://files.transparentturtlegraphics.com/uploads/1/3/2/6/132681443/zibakut.pdfIn PDF document text
    • http://files.coopersmastiffs.com/uploads/1/3/0/8/130814078/mejogarex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6956/2266/files/4594212961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/65409189012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/vananipepeboduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/rolalepotog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4665/files/80395772970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/ganuwifakuzizifadukitede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/calculus_early_transcendentals_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8530/7808/files/safekalodupewolixuloximi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97454987384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0762/files/zepunutat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/76772171847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3950/7100/files/nesunijupuwube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0930/9854/files/tesefafamisojajofemurox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/39919355283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7730/4481/files/whirlpool_cabrio_platinum_dryer_manual.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D32 4656 bytes
SHA-256: 819b6a39944d622c85f409c5e27aa090f3b62eef0a21f8e170950b7b6cfae96d
font_01_sfnt_off00008cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF5 9820 bytes
SHA-256: f5c0ef5b74f816b8c4d81f90c6ab68465be2ebeeccd65914ccd557f622286d13
font_02_sfnt_off0000ae85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE85 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230