Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d3866cce906f83…

MALICIOUS

PDF

45.7 KB Created: 2020-08-09 17:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe5891435d50ef3af19b3d3406448e77 SHA-1: 4605eb4cf19c43cdd334c21d15bec8bad9a5bc48 SHA-256: c7d3866cce906f837448106e8f27ab92a8d9735b9961dfd87c072fff6b8a1b33
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=autodesk+fusion+360+tutorial+pdf+ita'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains references to the redirector URL and other external links, reinforcing the lure-based attack pattern.

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=autodesk+fusion+360+tutorial+pdf+ita
    • http://files.whispersofthedarkmoon.net/uploads/1/3/0/8/130814058/8313925.pdf
    • http://files.slievenamonnurseries.com/uploads/1/3/0/7/130739398/9a0f0b0a043fc90.pdf
    • http://zanezidit.katlynbackus.com/uploads/1/3/0/8/130814124/ab184.pdf
    • http://files.lottiecreates.co.uk/uploads/1/3/1/3/131381237/sewolefavareji.pdf
    • https://cdn.shopify.com/s/files/1/0434/2526/7877/files/university_at_albany_campus_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/98457757408.pdf
    • https://cdn.shopify.com/s/files/1/0431/9523/6513/files/learning_drawing_and_painting.pdf
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/38438870342.pdf
    • https://cdn.shopify.com/s/files/1/0440/6204/8421/files/femutedotobugemega.pdf
    • https://cdn.shopify.com/s/files/1/0434/8493/8402/files/33602556251.pdf
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/wugijemufarofujimorulub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0656/6306/files/firaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/catlogo_suvinil_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/kapulomiparewiloranosebu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8339/8310/files/aggregate_test.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4565/files/the_analytics_edge_bertsimas.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9767/files/96577530175.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_off00005e3e.bin
51036caeaaec89de8680405f123e86dc84267b6fe8b2de34ea0e6c667ded1fe3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3E 4032 bytes
font_01_sfnt_off00006cb0.bin
693e64030726394d8f95fe15626148e8270aa1a18ff07b5532177ac7b6d7fb95
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 5548 bytes
font_02_sfnt_off00007f99.bin
2026f514133cb2b2c988342d6b0ca989680efc44623501a8d77b7e9a140e6164
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F99 13460 bytes