Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed7b4b245c83c74…

MALICIOUS

PDF

46.8 KB Created: 2020-08-14 02:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f9a8ec8d351e8aed3a3f18d3c63d0fa SHA-1: 3a096a7331fd71125a666a2c0b0b4924e2fc8c94 SHA-256: 7ed7b4b245c83c7490f1a05071d5f9b69c7b28dc71cb7b867fde43bd3a1fbe49
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.cc/pify?keyword=invesco+mutual+fund+fact+sheet+march+2018. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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=invesco+mutual+fund+fact+sheet+march+2018
    • http://files.propeace.org/uploads/1/3/1/0/131069860/pileg-xezisexewa.pdf
    • http://gedefij.leoniemcilvenny.com/uploads/1/3/1/8/131857054/6688346.pdf
    • http://files.fortbraggheadlandsconsortium.org/uploads/1/3/2/6/132682913/jipizodoru.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/45722579886.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdf
    • https://cdn.shopify.com/s/files/1/0451/9349/4677/files/barron_s_sat_math_level_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/1554/4737/files/bratislava_attractions_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/bejitatut.pdf
    • https://cdn.shopify.com/s/files/1/0429/7369/2063/files/chemistry_practical_apparatus.pdf
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/9932652801.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89832202682.pdf
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/pomekixojokibeno.pdf
    • https://cdn.shopify.com/s/files/1/0428/1031/0822/files/21105162444.pdf
    • https://cdn.shopify.com/s/files/1/0433/9073/0391/files/close_to_you_carpenters_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/banking_industry_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/babybjorn_bassinet_sheet.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_off000076f7.bin
4418275d599624690c890e6e70f3e88963b46aaa41b871897c311d8f0fb1fa0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F7 5780 bytes
font_01_sfnt_off00008a73.bin
e5b441d52d6b56eb991d1a375c73d447267defb4f3188991b1b45fbda11e0091		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A73 10456 bytes

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