Malicious PDF — malware analysis report

Static analysis result for SHA-256 516ac30738059f12…

MALICIOUS

PDF

54.3 KB Created: 2020-08-22 06:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e9966a7a0246e6ce8b490f12e362a24 SHA-1: 498f720482d7ca7714ba4e220ccc59df41bd2f88 SHA-256: 516ac30738059f12f161b37f1050394b27f59800ae309eb582323cccd222ef59
120 Risk Score

Malware Insights

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

The PDF file contains numerous links to external PDFs hosted on Shopify and other domains, forming a link farm. One of the primary links directs to a malicious redirector at 'https://ttraff.cc/pify?keyword=believer+imagine+dragons+piano+sheet', which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the same redirector URL and references to piano sheets, suggesting a social engineering lure.

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=believer+imagine+dragons+piano+sheet
    • http://files.mollydykstra.com/uploads/1/3/2/7/132741169/1137189.pdf
    • http://bogag.laptoppartstore.com/uploads/1/3/1/6/131637814/talunifepiposij.pdf
    • http://files.handforgedfarm.com/uploads/1/3/1/0/131071191/e934ba5.pdf
    • https://cdn.shopify.com/s/files/1/0436/2108/9444/files/ratamisowezinaxa.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/unity_restart_scene.pdf
    • https://cdn.shopify.com/s/files/1/0435/0240/3750/files/tiny_banker_trojan_wiki.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/naxijejipelugaxikaki.pdf
    • http://dirivavof.avivpdx.square.site/uploads/1/3/1/3/131379132/jepufusukekupo-zasomiw-febozafit-lilolipegoxifi.pdf
    • https://cdn.shopify.com/s/files/1/0449/3488/9627/files/bajaj_finserv_logo.pdf
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/zovoxugexetibalutozi.pdf
    • https://cdn.shopify.com/s/files/1/0436/2040/1316/files/vinyl_sheet_flooring_stores_near_me.pdf
    • https://cdn.shopify.com/s/files/1/0432/3531/1775/files/fedonitimizavegatise.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/totifibegiloraduwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/alcohol_abuse_among_youth.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083e6.bin
d8d20a02b63193ec422dd4bc4751529ab54c1b943fb9c29d943f436e92ed0811		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83E6 5484 bytes
font_01_sfnt_off0000965f.bin
cb4445227a7dce079a64b4fe686e35f1ef18a58108979bc72df130ed7cde2b39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x965F 17420 bytes

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