Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f97f3509020788…

MALICIOUS

PDF

52.0 KB Created: 2020-08-21 02:20:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00857f883f6c9c31653fac89339da1a4 SHA-1: 3aae3f6113091e593d589dd9f219c6a306188d73 SHA-256: 16f97f35090207887de358f09020ba6c9766ed87103851ba6441a70bddd9e6d1
154 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to appear as an IMF report on climate change, but it redirects to a malicious URL. The ML classifier strongly indicates maliciousness, and the PDF structure includes numerous external links, many hosted on Shopify, likely for SEO manipulation or to obscure the true destination. The primary malicious URL identified is https://ttraff.com/pify?keyword=imf+report+on+climate+change.

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=imf+report+on+climate+change
    • http://files.houseoflady.com/uploads/1/3/1/4/131453494/2182004.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0436/9291/6891/files/annotate_on_macbook_pro.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6490/files/wirizuzep.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/98114556903.pdf
    • https://cdn.shopify.com/s/files/1/0433/4131/6249/files/prentice_hall_physical_science_concepts_in_action_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0432/5877/3662/files/salmon_fishing_guides_redding_ca.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/55538087943.pdf
    • https://cdn.shopify.com/s/files/1/0449/0136/7963/files/38613400954.pdf
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/95676139740.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/nuvigode.pdf
    • https://cdn.shopify.com/s/files/1/0431/0745/1041/files/3d_aus_navisworks.pdf
    • https://cdn.shopify.com/s/files/1/0464/6567/9512/files/rigezi.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006594.bin
c75fab4023b04558567791afd335c2739af0aec81b1faabc6d89b8b3bed1bb2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6594 3468 bytes
font_01_sfnt_off0000720a.bin
86507dc930d573b92be89dcc2247582c4359076b0236872debad267c2b343a69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720A 5188 bytes
font_02_sfnt_off0000837c.bin
3897390ced5dfe4569e8c3b1beea8db715beee79071bcd8e98388fbe78741a64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837C 12460 bytes
font_03_sfnt_off0000abc3.bin
d6cec5d81403a3d70faea1540ef19555465bc704c2477342a2b01c02bc8a8e2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABC3 16488 bytes

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