Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fffb1000eecd09…

MALICIOUS

PDF

58.6 KB Created: 2020-08-12 00:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33649f5a825e4a60df22c6bceae64511 SHA-1: 84bfe72300b8c9f9ba5e85b8f9252880c6dde2a9 SHA-256: 60fffb1000eecd09a7a695b6531581889c4e31bd098cd003a30cd534fd14339b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, suggesting an attempt to redirect the user to a malicious site. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to obscure the malicious destination. No scripts were extracted, but the primary attack vector appears to be the malicious URL.

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=the+modern+standard+british+english+accent+pdf
    • http://files.highvibehealinggems.com/uploads/1/3/0/7/130775934/rezula.pdf
    • http://files.andrewmichaelart.com/uploads/1/3/1/4/131408529/59fa416c9cccb3.pdf
    • http://files.pyropetesfireworks.com/uploads/1/3/0/7/130738512/tutize.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/66083191014.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/epicondylitis_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/niledoso.pdf
    • https://cdn.shopify.com/s/files/1/0433/9993/8211/files/biology_of_belief_lipton.pdf
    • https://cdn.shopify.com/s/files/1/0434/5312/0669/files/20566163529.pdf
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/63033817559.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/sarovesanunenuzikelanulaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/6686/7362/files/zupixasikubojogu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/python_examples_programs.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3845/files/10238669953.pdf
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/viper_479v_manual.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_off00009bc8.bin
faf6a4b23170603851d7abf494c9a590f70ebe578fcc08ea9b9194c901e79df8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC8 5660 bytes
font_01_sfnt_off0000aedc.bin
0d60357a2fc1da3aac2625740ad1e0a135c2fa98061066c20a8d416de4c99d9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEDC 14812 bytes