Malicious PDF — malware analysis report

Static analysis result for SHA-256 89055493a0b9c4e2…

MALICIOUS

PDF

48.8 KB Created: 2020-07-27 15:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3361b09d0325b0f5f7f5b462918546c SHA-1: 1a079358d62ebf5c18cef3d42f1a9745d7a2a30d SHA-256: 89055493a0b9c4e2ec7adbb2ad99a83fc90571f88dd9eb0d5cf08ce33a05d518
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=genius+pen+mouse+user+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, suggests a lure related to a 'Genius pen mouse user guide'. The primary attack vector appears to be directing users to malicious infrastructure disguised as legitimate content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/pify?keyword=genius+pen+mouse+user+guide
    • http://files.wbphoto.org/uploads/1/3/0/8/130874201/lumajapegavakaba.pdf
    • http://files.projectcancerland.org/uploads/1/3/1/4/131407492/363da.pdf
    • http://files.plaidelephantprops.com/uploads/1/3/1/3/131380841/xinifelubej.pdf
    • http://files.ohiooutdoorstructures.com/uploads/1/3/1/6/131606965/rejibubezad_visabojaniw.pdf
    • http://files.marriedmarks.com/uploads/1/3/2/8/132816158/wawezanuz-titun-resuta-ponupax.pdf
    • http://files.marriedmarks.com/uploads/1/3/2/8/132816158/wawezanuz-titu
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/73788351115.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0430/3588/5721/files/43607775984.pdf
    • https://cdn.shopify.com/s/files/1/0434/3404/9703/files/86386032042.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/lovageme.pdf
    • https://cdn.shopify.com/s/files/1/0436/0844/0990/files/64684899512.pdf
    • https://cdn.shopify.com/s/files/1/0430/5246/6325/files/36138485951.pdf
    • https://cdn.shopify.com/s/files/1/0429/4233/3084/files/mekujuzewiva.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdf
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/lisumuloxodewafevav.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bb7.bin
b1883cbc90381624481de39c9999e365c487d9465faa5321183d51f2b694ad56
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB7 4872 bytes
font_01_sfnt_off00007c17.bin
a5ee241ab662b203b32cfaad94dc5c0c69470690968dec64c8a8e0254f58dc09
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C17 7580 bytes
font_02_sfnt_off000090c0.bin
75897844067b2cb2a559498e501045c66ca3958943732929f431017dee6e9c94
pdf-font-stream PDF embedded font (sfnt) at offset 0x90C0 10732 bytes