Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc4047ff96ae3e3…

MALICIOUS

PDF

45.0 KB Created: 2020-08-06 15:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5247dab19234eb32b1b3967a01eaa87a SHA-1: 57b394fceb330c0ad8017417e7257b4fd76fa18b SHA-256: ccc4047ff96ae3e3904efbeec1f64dfc93d9f21e588adf916afaf6283aa57182
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including one identified as a malicious redirector to 'ttraff.com'. This suggests a phishing or scam attempt, leveraging SEO-like tactics with many linked PDFs to appear legitimate. The primary malicious URL is 'https://ttraff.com/pify?keyword=scheduling+algorithms+in+operating+system+with+examples+pdf', which is likely used to redirect the user to a malicious site.

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=scheduling+algorithms+in+operating+system+with+examples+pdf
    • http://files.letsgoplayoutside.org/uploads/1/3/0/8/130814329/nozozududimipirobibu.pdf
    • http://files.sweetssogeek.com/uploads/1/3/0/9/130969989/3e0df0df.pdf
    • http://files.goleakdetectives.com/uploads/1/3/1/4/131406893/nuzedo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/dalux.pdf
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/87165643946.pdf
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/zigisefafepulenobatunirab.pdf
    • https://cdn.shopify.com/s/files/1/0437/8879/6065/files/chilton_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/71967422385.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9424/files/80348022890.pdf
    • https://cdn.shopify.com/s/files/1/0435/9267/9582/files/auxiliary_verb_uses.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/dexutupelejapoza.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/89831839027.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peboginesewuxexadamo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/tiwawexuzumopamatu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7786/9476/files/95659657790.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_off00006321.bin
3441ee39c2b35e05a1b78083081dc52cb12736660cfa9c6430ba1365ccb72dd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6321 5816 bytes
font_01_sfnt_off000076d1.bin
9d3d3cb189543561bfd8171a5a5a2c9cfa015f45d2e1eb426523c4da0239f970		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D1 9924 bytes
font_02_sfnt_off00009890.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9890 4324 bytes

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