Malicious PDF — malware analysis report

Static analysis result for SHA-256 57be689c49687733…

MALICIOUS

PDF

52.5 KB Created: 2020-08-25 03:18:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcc26987e178137a4406c69c7d04efa4 SHA-1: b30aea17f9f8d50d7b2b8db8c5c2413bee4ddda5 SHA-256: 57be689c496877336a52d76971fd8757971e2c45cb79822c2655c8d30f736687
150 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 'ttraff.cc'. The document body, though partially corrupted, contains text related to 'Android tv box games list' and the malicious URL, suggesting a lure. The PDF also contains a link farm heuristic, indicating an attempt to distribute content or traffic. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=android+tv+box+games+list
    • http://files.speakupsaveamerica.com/uploads/1/3/1/1/131163599/1485745.pdf
    • http://files.tawazonspace.com/uploads/1/3/1/6/131606275/zedafuzetuganokixix.pdf
    • http://vunikunim.intergenerate.net/uploads/1/3/1/4/131437130/29154c1330e7b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13503036424.pdf
    • https://cdn.shopify.com/s/files/1/0432/3337/8459/files/basic_core_java_concepts_in.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5910/files/blessings_laura_story_piano.pdf
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/40346117120.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/22465667605.pdf
    • https://cdn.shopify.com/s/files/1/0437/0916/9815/files/33027436352.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/turitome.pdf
    • https://cdn.shopify.com/s/files/1/0437/9734/8514/files/kijokikefajosidabusewikez.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_off00007c12.bin
67df3fe051a9a5c27ab6efb50f997ee860081af16ad80b638a1f6e802936d495		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C12 5404 bytes
font_01_sfnt_off00008e57.bin
1173aed315fde6410e1f76b644a05d4e13bc520521d9acab82bba74c0ef6c769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E57 5004 bytes
font_02_sfnt_off0000a068.bin
d5fd7b074c93086dc3a00f44734ab3137b0a0f428566281035ea9282fd7647bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA068 10684 bytes

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