Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00c0f7d3ae01b9e…

MALICIOUS

PDF

54.6 KB Created: 2020-08-01 14:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69eccead9328890857fab7e05fb47b6d SHA-1: e6ee1438252963730a157baa99c584fc58d95f50 SHA-256: f00c0f7d3ae01b9eb477ef2e1ece8dfc2f7161d89704b448ef980789df02bf20
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. A critical heuristic identified a link to a known malicious redirector at 'ttraff.com', which likely serves to obfuscate the true malicious destination. The document body, though heavily encoded, contains this redirector URL and several other URLs pointing to Shopify domains, suggesting a coordinated effort to distribute malicious content or phishing lures through a large number of links.

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=e7%2525+89%2525+9b%2525+e8%2525+a7%2525+92
    • http://files.peachmountainorganics.com/uploads/1/3/2/6/132682655/dunir_petigomasu_zavexavadixo_badolapomimi.pdf
    • http://files.morningdogcoffee.com/uploads/1/3/0/8/130815213/1541531.pdf
    • http://files.islamhussein.com/uploads/1/3/1/3/131383743/161808130c.pdf
    • http://files.fairviewfire.org/uploads/1/3/1/4/131437733/pumurunogusa.pdf
    • http://files.commedisaitmaman.com/uploads/1/3/1/4/131406698/luwoberorapowa.pdf
    • https://cdn.shopify.com/s/files/1/0435/6525/2771/files/43376725568.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/38456218302.pdf
    • https://cdn.shopify.com/s/files/1/0435/4909/8148/files/55795395996.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/93121356142.pdf
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/navijoxe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/55864873889.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/95373314730.pdf
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/28739987533.pdf
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/81562635173.pdf
    • https://cdn.shopify.com/s/files/1/0434/8782/1984/files/tosetofobepamufaki.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/josokesagomivevozulava.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081b6.bin
a31aedb3fe800cd2b5c0120397ec9570e12c7cc97febb81e3d6171160c50e6bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B6 2960 bytes
font_01_sfnt_off00008c38.bin
6e847a1acbf102619fd2ef85db1aad82a5f71f940314f0d77642f3e77c00f7d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C38 4708 bytes
font_02_sfnt_off00009c0e.bin
be47c43ed89d03e9173a062aeba645d6b0b5e1f0df4ff47f56cd9a255455daff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0E 10284 bytes
font_03_sfnt_off0000bf20.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF20 4324 bytes

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