Malicious PDF — malware analysis report

Static analysis result for SHA-256 0710203cd27ca339…

MALICIOUS

PDF

46.7 KB Created: 2020-07-31 03:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: beba0e07a83d1dff47b64c2358ce03f1 SHA-1: f528f6b6a7e78b102b552474b65fa148624db299 SHA-256: 0710203cd27ca339d902e52424db9f118c901001db223c7058296eae39968e26
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a "bible timeline chart". The presence of numerous external links indicates a likely SEO spam or phishing campaign aimed at driving traffic to malicious infrastructure.

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/pify?keyword=great+adventure+bible+timeline+chart+pdf
    • http://files.ryanwest.net/uploads/1/3/2/3/132303238/7118987.pdf
    • http://files.outlandish-photography.com/uploads/1/3/1/3/131398406/nodegu-nilonogudalubes.pdf
    • http://files.amyspeechlanguagetherapy.com/uploads/1/3/0/8/130813899/javinomulogojaxeb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/dagukojitipunowad.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/xeluxorum.pdf
    • https://cdn.shopify.com/s/files/1/0428/7211/1260/files/nipawe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2419/4468/files/mivobuwejujakezujowijob.pdf
    • https://cdn.shopify.com/s/files/1/0434/2389/1618/files/fotolupinokikukesudu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/8006/files/94140607533.pdf
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/47619796943.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/xowanoromepanefinapobat.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/76874466864.pdf
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/doxudaremipefajoxibado.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_off0000776e.bin
98522b51aaa489e8bcc4109bec954ef3249ea1067dd39e151198394ee08361ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x776E 5220 bytes
font_01_sfnt_off00008902.bin
737f728622f5c4a821f2042b20d265055007e555700b9dc031dfa632ab3e3d79
pdf-font-stream PDF embedded font (sfnt) at offset 0x8902 10848 bytes