Malicious PDF — malware analysis report

Static analysis result for SHA-256 f72a40bb52c47c8d…

MALICIOUS

PDF

42.3 KB Created: 2020-08-28 07:10:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f1f78c90aebbd99be9778311397aa07 SHA-1: e2e34482db499ab2a95d2969ae2fbae5974eb90e SHA-256: f72a40bb52c47c8d6aff769d6bf1efbb6635a50440594f24a256123c587f32f1
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is ttraff.club, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Plant paradox recipes' and the malicious URL, suggesting a lure to disguise the malicious intent. No scripts were extracted, and the PDF structure itself is the primary vector for the attack.

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.club/pify?keyword=plant+paradox+recipes
    • http://redir.liveinfullbloom.org/uploads/1/3/0/7/130775934/3197297.pdf
    • http://xapozego.lifehomesafe.com/uploads/1/3/1/4/131483027/lavezetibiwuxoj.pdf
    • http://files.northerntaxidermyart.com/uploads/1/3/2/7/132740763/fomezagata_jogolalumotali_jagamija.pdf
    • https://cdn.shopify.com/s/files/1/0430/4214/4407/files/67450174442.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/until_friday_night_abbi_glines_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/dulce_maria_loynaz_jardin.pdf
    • https://cdn.shopify.com/s/files/1/0438/8657/5771/files/12668210500.pdf
    • https://cdn.shopify.com/s/files/1/0434/3844/0598/files/55637444256.pdf
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/90043544959.pdf
    • https://cdn.shopify.com/s/files/1/0430/0010/3073/files/texipolagosajar.pdf
    • https://cdn.shopify.com/s/files/1/0454/1985/6028/files/lojotegosibel.pdf
    • https://cdn.shopify.com/s/files/1/0434/5616/8093/files/noxalejativowigafixufutup.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/23516023653.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_off00006789.bin
98d885aad9dd853fd2e3ba5a6fab1a2e8c1e731e71a367d0938446ec71a23d5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6789 5136 bytes
font_01_sfnt_off0000790a.bin
c8feda752652a103b560f5c24c150ae9bd3e2c88e402c6a8cb2a000050460744		 pdf-font-stream PDF embedded font (sfnt) at offset 0x790A 10420 bytes

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