Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0571c16c0c6b4f…

MALICIOUS

PDF

52.2 KB Created: 2020-08-08 16:09:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8abd43238e65e54b3323de434a74a47e SHA-1: 84d2fcee2afe59e09e90b99839d2afb70d5d4bed SHA-256: 2c0571c16c0c6b4f1709d2fbbd477f6c5c1a6ce6968383d7f1af68d66b06945e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=nutricion+parenteral+vias+de+administracion+pdf'. This indicates the document's primary purpose is to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other embedded URLs, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, limiting the analysis of direct payload execution.

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=nutricion+parenteral+vias+de+administracion+pdf
    • http://files.floridafraternalorderofeagles.com/uploads/1/3/2/8/132814136/ef88482.pdf
    • http://files.axeandroothomestead.com/uploads/1/3/1/4/131407635/09d4d.pdf
    • http://files.starkeyspoint.com/uploads/1/3/2/3/132303013/97d6a5.pdf
    • https://cdn.shopify.com/s/files/1/0440/1758/2230/files/2476503318.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/guvilanilolimik.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/vejakenuxowilegebufugupoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3934/files/tinkle_double_digest_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/1250/5252/files/nibolajegifirifekap.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/vutipijirawemij.pdf
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/ropasurogowilonamo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5598/8387/files/82067032473.pdf
    • https://cdn.shopify.com/s/files/1/0437/5825/6286/files/51658808445.pdf
    • https://cdn.shopify.com/s/files/1/0435/6869/3411/files/14073681965.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/47549289401.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_off00007b40.bin
9a98723dae936e7c7c8d502cfbcf27bf9f93cff28ba6a06675a6a95244fbc4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B40 1696 bytes
font_01_sfnt_off0000836a.bin
cbf993a162edba59320f4db4b98b6d8c1dd1c563c6d6b8d723778731f938a810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x836A 5332 bytes
font_02_sfnt_off00009583.bin
056dd659b975c530a7f11905d219da6e27e0ed2aba7821a4ada411f11ae3f5e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9583 14392 bytes

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