Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db30c7f72e08ce7…

MALICIOUS

PDF

43.8 KB Created: 2020-08-05 07:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8dc109cec90d48132957c72021fb9cb8 SHA-1: 516eed2b91f27e4ea2ae9b95d66a5b9711a3062a SHA-256: 7db30c7f72e08ce71ee183987e19631fcc1306d854caa47d343a2c35396ccce7
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting.

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.ru/pify?keyword=banana+pancakes+ukulele+chords+pdf
    • http://files.myemdash.com/uploads/1/3/0/8/130813582/gekawunowovaf_jalumelu.pdf
    • http://files.injoypremiumcbd.com/uploads/1/3/0/7/130739232/54d4449f5f4e1.pdf
    • http://files.thehandmadehydrangea.com/uploads/1/3/0/7/130739294/gekitukijedip_masexirokodabux_lowiw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/43762122807.pdf
    • https://cdn.shopify.com/s/files/1/0434/7448/5401/files/dmv_accident_report_form.pdf
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/ladetilakipe.pdf
    • https://cdn.shopify.com/s/files/1/0439/2094/9403/files/ford_6600_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1559/files/xurotufum.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/dalipafabo.pdf
    • https://cdn.shopify.com/s/files/1/0438/0357/4434/files/bombay_high_court_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/kixowozo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6636/6869/files/sipubi.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6099/files/gate_2020_me_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/wiguveda.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/bend_tv_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/78339578170.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_off00005652.bin
c79b46c9f65c35e9116c5fa70c57bc03519d1635d16e8747bc1ba5b605ea5a14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5652 5108 bytes
font_01_sfnt_off0000679b.bin
7151dd77ec9fe3c06996e0d60d879c89e329d2fc11db26a8dc7b94454d26c2ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679B 14376 bytes
font_02_sfnt_off000093be.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93BE 4324 bytes

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