Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a89f52b754f82b1…

MALICIOUS

PDF

47.7 KB Created: 2020-08-06 16:47:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d09ab54d26e64fdd342b8fbdede2841e SHA-1: f19cd4f6c00da69c9c48962564da6b1b83067b76 SHA-256: 3a89f52b754f82b113e5889eef2fcebfc1e0b4d2e3a1b98f0f61fabf07d93066
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. This indicates an attempt to lure users to malicious infrastructure, likely for phishing or malware distribution. The document body itself contains garbled text but also includes the malicious URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to attract victims.

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=business+communication+notes+for+b.+com+1st+sem+pdf In PDF document text
    • http://files.johnsalozzoart.com/uploads/1/3/2/6/132681836/jorazavud.pdfIn PDF document text
    • http://files.christierecords.in/uploads/1/3/2/6/132696274/1596304.pdfIn PDF document text
    • http://ganej.girlfridayyarn.com/uploads/1/3/2/6/132682646/nakozupubufutiroje.pdfIn PDF document text
    • http://files.aurorataichichuan.com/uploads/1/3/1/6/131606198/8a6f4f5e.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/1/0432/1070/3010/files/angular_q_all.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7703/3372/files/emergency_assembly_point.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0354/6533/files/business_model_canvas_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5012/3943/files/joxobogizulol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/jeravapujufekelok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/25108746128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/29004470998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/11199741671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/99902224807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8565/1358/files/kurs_angielskiego_dla_pocztkujcych.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/foxumijezapulupefipifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8107/8686/files/70915584767.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C17 6744 bytes
SHA-256: 048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4
font_01_sfnt_off00006cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFC 5424 bytes
SHA-256: e91662fb42d2d6a1839f9907c4da215a945fd95d11b17041300e1df4a2831b87
font_02_sfnt_off00007f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4C 10488 bytes
SHA-256: 0ec60137cc962365a95e64dda921ea7aa36cc9df51cafaa28817e86281629fde
font_03_sfnt_off0000a316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA316 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2