Malicious PDF — malware analysis report

Static analysis result for SHA-256 62c29790bf63da45…

MALICIOUS

PDF

38.7 KB Created: 2020-08-30 03:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c6a2dfe074b187e01ea333dc681b92c SHA-1: 5e83590169d9804c0cdcaa09088feabf93afc568 SHA-256: 62c29790bf63da4508b70c8f32c46bf81a9dd02b1afe032f2fd69898308a01f4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a pharmacy review document. It also hosts a large number of other PDF links, suggesting a link farm or SEO poisoning tactic. The embedded link in the document body, 'https://ttraff.cc/wix?keyword=comprehensive+pharmacy+review+for+naplex+pdf', is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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.cc/wix?keyword=comprehensive+pharmacy+review+for+naplex+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0436/9616/0921/files/28354263764.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5277/files/tavixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4440/files/asme_b31_4_gratis.pdf
    • https://static.usrfiles.com/ugd/3aee12_e07d235e157d423fb53f707b3891509c.pdf
    • https://static.usrfiles.com/ugd/c0b427_836084a6248f43d1abbbda610a5dbed5.pdf
    • https://static.usrfiles.com/ugd/b8c837_e41db60785a940b79d36a42069d4c010.pdf
    • https://static.usrfiles.com/ugd/599f1c_9ed7f0d6403b4b58bbdd4f3903c9a322.pdf
    • https://static.usrfiles.com/ugd/77d535_4a815c915b9e4e80bf1723d2c81fa848.pdf
    • https://static.usrfiles.com/ugd/63d3ad_5b3635db16c94e439f5f4a1011e8d259.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/jemerarovudopirosune.pdf
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/dutas.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ab2.bin
332ba025f528e3acff921ce2bc730b1ea48d8045c69879dd295113e732805ee2
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB2 5448 bytes
font_01_sfnt_off00005d22.bin
1971c6941ce66fe9d1b0e5fae7140dbc7c50b98d513ac1ee9218ae3cf4f5cb6e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D22 10332 bytes
font_02_sfnt_off00008033.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8033 4324 bytes