Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c45c850de40e42a…

MALICIOUS

PDF

40.8 KB Created: 2020-08-18 16:06:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 159443178b7fa687b55611abba41801e SHA-1: 4eb7c8181701f8719de9041c9fccaf8f8f71936b SHA-256: 0c45c850de40e42a922b380b481e9f514e8cd1bbfb54d115815b411e3a361cda
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking Shopify links, suggesting a lure to disguise malicious activity. The presence of a malicious redirector and a large number of external links indicates an attempt to drive traffic to potentially harmful content, likely for phishing or malware distribution.

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.com/pify?keyword=microscopes+online+worksheet+answers In PDF document text
    • http://files.atalayasar.org/uploads/1/3/0/7/130776573/8900868.pdfIn PDF document text
    • http://files.doghairburning.com/uploads/1/3/1/3/131398259/lerudanewigavok_jubaxejobojulat.pdfIn PDF document text
    • http://padezewi.wabseny.com/uploads/1/3/0/9/130969940/garobafewajusedubi.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/1/0434/5489/0149/files/fraction_word_problems_adding_and_subtracting_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0652/4566/files/rewuxovuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/50109825224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4299/9194/files/adobe_acrobat_pro_change_to_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/29509338022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3490/1671/files/zepipifedaboliduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3477/9553/files/kijin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2847/2220/files/dewareguwudugupemika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1375/7339/files/togixepuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/lesejoduretutirakenizadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/woxavar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/45534116593.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 3

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_off0000614e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614E 5180 bytes
SHA-256: 48d7fdc38c2816e131d45ee7227d96397eb4208e6277dcd75d1e14c6d7a47254
font_01_sfnt_off000072fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FA 10320 bytes
SHA-256: 619c7d27c251b32b92f2dde1fbf000882995430852a5555831c9700cd2f22979

Open this report in the interactive analyzer, or submit your own file for analysis.