Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76d0504e0631699…

MALICIOUS

PDF

45.3 KB Created: 2020-07-30 02:23:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 620a1927e741c3ed9a75298a20c08e50 SHA-1: c29af63554c0a6efbfcaeab4f488ac105ebc9410 SHA-256: b76d0504e063169948ac06c14b12ac65461f7ba4a504fe2098e946e23ebf127f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to artificially inflate search engine rankings or distribute multiple malicious links. The document body, though partially corrupted, contains text related to a photography guide, which serves as a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware download 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=the+dps+ultimate+guide+to+photography+for+beginners+pdf
    • http://files.jjjohnsonauthor.com/uploads/1/3/1/4/131437268/lotoxaboxubuw.pdf
    • http://files.cleanwatergso.net/uploads/1/3/1/3/131398428/lopakanivupodi.pdf
    • http://files.sspres.org/uploads/1/3/0/8/130813364/1947775.pdf
    • http://files.shesthefirstwisconsin.org/uploads/1/3/2/7/132712006/dapuvizupedana.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/40393158501.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.pdf
    • https://cdn.shopify.com/s/files/1/0435/8632/2600/files/58103469478.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1695/files/muweliweketajomizutakaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/0046/1472/files/xutomubefalegapu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/sudonurajewafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/64790142175.pdf
    • https://cdn.shopify.com/s/files/1/0432/5376/0162/files/medufurasulabozas.pdf
    • https://cdn.shopify.com/s/files/1/0434/2562/8316/files/41350171845.pdf
    • https://cdn.shopify.com/s/files/1/0434/5423/4785/files/kiwabegupe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1095/files/xidekawafobalovexusam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.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/
    • https://cdn.shopify.com/s/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007232.bin
935d3e68a1fdcb9d9c715f0c005890c48860d3c585819b2706f5176f39ca92d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7232 5528 bytes
font_01_sfnt_off000084da.bin
06e1628de5d4658ffd7eb814d90ef30bffca16df5a407280ed89f3d664cb94a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84DA 10156 bytes

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