Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fcc36d2f0fd181a…

MALICIOUS

PDF

44.5 KB Created: 2020-08-29 01:56:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01301dd3b9c577ddd843f568138cf7a2 SHA-1: 9dd74f4280bff0c9a60fdf58fdb784b1580b3e6d SHA-256: 6fcc36d2f0fd181a6bedbd1cb43c1f5b911d7fbe764be26c54c78155a3275d28
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/wix?keyword=red+scrolls+of+magic', is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to direct users to malicious infrastructure, likely as part of a phishing or scam campaign.

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.ru/wix?keyword=red+scrolls+of+magic
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/timex_expedition_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2589/9426/files/movodatuwevezevudezi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/671963525.pdf
    • https://static.usrfiles.com/ugd/b8c837_587835a246bb40b29448abf5d98af683.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e551826a3394389b3bcb35e37064770.pdf
    • https://cdn.shopify.com/s/files/1/0433/6635/0998/files/tajemesibofutetevananaron.pdf
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/christina_perri_a_thousand_years_instrumental.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/wudulezilumegidixokaxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/tukegiw.pdf
    • https://static.usrfiles.com/ugd/b8c837_ed4f432c9377471093478c72c3905090.pdf
    • https://static.usrfiles.com/ugd/b8c837_6abd73b545414893bd8f5d5b3e9c24cd.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_off00005f40.bin
c19e8e29df2c357615af9fbb46daedea7ea76886e908fcc85fe62d7668dcaf17
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F40 5348 bytes
font_01_sfnt_off00007155.bin
d330e7be939a8e3ac10062caf04229d5d3e1435dc8d57dc4a6fc5762d80ecefe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7155 17216 bytes