Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1207f071636e1b9…

MALICIOUS

PDF

54.7 KB Created: 2020-08-19 12:26:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91e17b3870d5f1d5f031cb9fb677c36c SHA-1: 1818562471eae2cfdca86c8df6ec6655dae439b5 SHA-256: f1207f071636e1b9bd9cc22d103b0a8f08096ee729a20faefbc95a43a5e37ea2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. The document body, though heavily obfuscated, includes the same URL and a list of other URLs, many hosted on Shopify, likely as part of a link farm to improve search engine ranking for malicious content. The primary intent appears to be directing users to malicious infrastructure via the ttraff.com 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.com/pify?keyword=evaluation+of+mucoadhesive+drug+delivery+systems+pdf In PDF document text
    • http://files.unokidz.com/uploads/1/3/1/4/131437711/kolugorozuralimexupa.pdfIn PDF document text
    • http://janitaj.bridlewiseridingacademy.com/uploads/1/3/0/7/130775195/7e65e0e5a7.pdfIn PDF document text
    • http://files.karenfornes.com/uploads/1/3/0/7/130738644/rovixoxu_wupovanofagumo_bamimo.pdfIn PDF document text
    • http://files.beatlemaniax.net/uploads/1/3/0/7/130775950/4848058.pdfIn PDF document text
    • http://files.1travelshop.com/uploads/1/3/0/8/130813639/zibajotumipazav_tunafe_tukiseti_zetakomu.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0432/7351/9272/files/mezudizesesatolivagizorul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/beatles_anthology_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2974/9145/files/17838712283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/vezezilesisob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2994/3704/files/block_ads_android_no_root_xda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/90699349955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/gozosodosevixefumux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3400/7973/files/12329466539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/wojujepobuvurinemam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/logical_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9639/9269/files/74345100957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3727/7855/files/6258821677.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 1836 bytes
SHA-256: d5c71426d3f9879046e962357e715dcb4cc5210ef2ab68b6c67bd74750dbca57
font_01_sfnt_off000087bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BD 5572 bytes
SHA-256: 1ca9711e806797b7918a9bfa0dea3f8d6855a6c77a977e9e94370c4582281da7
font_02_sfnt_off00009a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A84 10468 bytes
SHA-256: 91c81b8a30552f933cd50ef4bd4a7d209a4752faa8aa279aebe8b8a7312292d1
font_03_sfnt_off0000be58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE58 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34