Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d0360ea5d0766d8…

MALICIOUS

PDF

51.2 KB Created: 2020-08-23 21:04:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9db93fe470451c9bf4cf66b665530a7d SHA-1: cab83ad6d706a15d7a54f5878664acd3d884ee26 SHA-256: 9d0360ea5d0766d86bda4b55429db8e5f8488e011b06c5320fe7146ed2de4ba3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link to a redirector URL, which is a common tactic for delivering malware or phishing pages. The document body, though heavily obfuscated, contains text referencing "Free blackmart latest version" and the malicious redirector URL, suggesting a lure for potentially unwanted software or a phishing attempt. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of SEO poisoning or link farm techniques to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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=free++blackmart+latest+version
    • http://files.wigginsphotographymn.com/uploads/1/3/0/8/130815009/kosawizisojali.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/smart-_lab._ru.pdf
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/91977518020.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3842/files/61843570108.pdf
    • https://cdn.shopify.com/s/files/1/0435/8592/9375/files/bagefugoloserorotod.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/redozut.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/it_asset_inventory_template_xls.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/56323165649.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006589.bin
45730ad100bc9858092ad117196741d87b2ce32bae47cfb0e75dfd4e0751253c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6589 5164 bytes
font_01_sfnt_off00007704.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 1800 bytes
font_02_sfnt_off00007f91.bin
30ea723b4977634143975e312ed8ca20f15543d04fef1615f5d246a074aa3dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F91 9964 bytes
font_03_sfnt_off0000a1e5.bin
2c5f51a476b4274b6b900fbba81fc97c04b4f1697b1aac53cf696a9c53e0885f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E5 16368 bytes
font_04_sfnt_off0000b79f.bin
1648accd5638f26481c437d0e436fdfb03edab78dab75f4e73239278c8cddc19		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB79F 1736 bytes

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