Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ee5c49626b5856…

MALICIOUS

PDF

57.6 KB Created: 2020-08-19 10:01:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 885f9d9e038b1ed30ec0ccf9e00c8a3d SHA-1: f183dab9dcb7456087f5c62883e959271b456ad2 SHA-256: f6ee5c49626b5856241690f3f6c9ab2775fe08b25c511062a919fe087e92f306
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector. The document body, though partially corrupted, suggests a lure related to an "Az game and fish report". The primary malicious IOC is the redirector URL, which likely leads to further malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=az+game+and+fish+report
    • http://files.salisburyroversfc.co.uk/uploads/1/3/1/1/131164211/xipaziju.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7462/files/80570155439.pdf
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/tavirisog.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/pukugoxifuvob.pdf
    • https://cdn.shopify.com/s/files/1/0448/1702/3138/files/igcse_edexcel_biology_revision_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/wosumuloz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7014/files/progressive_bulbar_palsy.pdf
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/xovumobota.pdf
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/xosopudexomixuvorer.pdf
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/becoming_jane_austen_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/69521421798.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/rodiguxipe.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_off0000a33f.bin
6635e0b1f74fbcae4114e11e316b1692a59fac7c45d2cb11fad43f57dacbe4dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA33F 5464 bytes
font_01_sfnt_off0000b5b6.bin
2a0b054bf0590eef69df21682db4a6e1989cd111cd1df0902e435483b0e37d33		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5B6 10504 bytes

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