Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7860d216082666f…

MALICIOUS

PDF

56.8 KB Created: 2020-09-09 20:10:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ad153ec3e47b7ba2ffc37fd3df11aaf SHA-1: ee686d90824401ce9062f3a6f36dfefcf26365eb SHA-256: b7860d216082666ff02b69c41bea0939855e63310ace9e8e8ddc4ad3927f3766
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.me', which is designed to lure users into downloading potentially malicious content, in this case, a fake 'talking angela game apk'. The document also functions as a link farm, directing users to numerous other PDF files hosted on various domains, some of which are associated with known malicious redirector infrastructure. The ML classifier strongly flagged this PDF as malicious.

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.me/pify?keyword=talking+angela+game+apk In PDF document text
    • http://numoz.sibclassicspanelandpaint.com/uploads/1/3/0/9/130969280/soliwisudovobivus.pdfIn PDF document text
    • http://konapepof.musedigitalmarketing.com/uploads/1/3/1/3/131381046/5992961.pdfIn PDF document text
    • http://files.labelleboutiquenyc.com/uploads/1/3/1/1/131164002/saxegelirelozowozej.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/1/0433/9580/9431/files/69038097980.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f91cf1_7e7e4817d904438bba8415e0d4268b11.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/67e251_7c4b0418c0ff46489275e2618c5af427.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_eab64c9ed9e54033973e97e9cf7650f1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/455f95_a8713afbdc574a05a6d8a1d68607cc9e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0225/6795/files/vafajanimiluko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/sowadap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/jabisiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8910/6846/files/72270558012.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6077 4072 bytes
SHA-256: e131a3da86d43c5d0c83b01d2e286706af41a6b60a7f5ed597608d6414e70242
font_01_sfnt_off00006efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFB 4880 bytes
SHA-256: a0e3b0ddaea5347e32c49cc80a0b82fa98dd8b2d06007d69790a127975b068db
font_02_sfnt_off00007f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F81 5224 bytes
SHA-256: ca5f87db1984b0fb99546f886ffb6159e566f8a11f159069780a4555bd3e4d5d
font_03_sfnt_off00008d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D63 10684 bytes
SHA-256: 02d21bf04ca3655a2efaac0eb9a885b6fdebd8b63d03ee8e915e898729e668c6
font_04_sfnt_off0000b1e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1E2 19476 bytes
SHA-256: cc363a6e66fe5856d7913b197b71d4feaf7ba6165cf71d202c9cd6da52b6e985
font_05_sfnt_off0000cd91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD91 1736 bytes
SHA-256: 551918360585b1590efa6fd2a215345b2f702067d151a0e4b48cfa7490b57960