Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f46baff64ad52bf…

MALICIOUS

PDF

40.8 KB Created: 2020-08-31 09:16:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19b11dbd141bc2caad75c5f77e72f46f SHA-1: 5ff6250754e742d590d317f7fd7bd653d7336368 SHA-256: 7f46baff64ad52bf450e19f4c54a93164ae595051bafe1366922b04f5a11bd25
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, includes the same URL, suggesting an attempt to trick users into visiting a malicious site. The presence of a large number of external PDF links also indicates a link farm, likely for SEO manipulation or to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wix?keyword=hamilton+sda+sabbath+school+powerpoint
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/97aff7_04d69a2c142b4b58ad3a1212524527df.pdf
    • https://static.usrfiles.com/ugd/afe78f_1bc32a4c61d641bc9838b6606c44e34b.pdf
    • https://static.usrfiles.com/ugd/4b7290_704680384cce4b888245737ddb92fd5b.pdf
    • https://static.usrfiles.com/ugd/b8c837_ffdba306e8c349b2bb3b062d0249fb7e.pdf
    • https://static.usrfiles.com/ugd/b8c837_682d915c828e49ccae42f5eabca10abc.pdf
    • https://static.usrfiles.com/ugd/865d50_c28651b97082432495384f12353570ca.pdf
    • https://static.usrfiles.com/ugd/b8c837_6c41dc75589a48ed94d2cb00558bd87d.pdf
    • https://static.usrfiles.com/ugd/b8c837_0c43ab42b40f4f7a892d247be19dfa8a.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/zexemojovusij.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/kibisiwesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9073/9361/files/pabatidoxazutolarali.pdf
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/ssvp_aggregation_form.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/escalation_protocol_boss_this_week.pdf
    • https://static.usrfiles.com/ugd/db93e9_8730bec648764118a61ad445221aa9bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_4bef0a5f0118424595b59f9daf131fca.pdf
    • https://static.usrfiles.com/ugd/b8c837_743a26bed5e847c9bbbd96eeb19aa4b5.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e68.bin
3285cdd8303002d6477c0b8a6d386c8b7f0cd82c3adf228e7e1f0ed229b450d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E68 5504 bytes
font_01_sfnt_off000070f0.bin
b2988c658421177efba5cc6dcd9339fd58e85b1cfb8950ee873ddec87e74442c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F0 10456 bytes

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