Malicious PDF — malware analysis report

Static analysis result for SHA-256 e979965d7edb5daa…

MALICIOUS

PDF

41.4 KB Created: 2020-08-10 12:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83b7c1d6bfddb49be5e14fd6f5c4ae17 SHA-1: 4c3b85d6218b62fe84848ca09ab16116a6268f00 SHA-256: e979965d7edb5daa5f2f86746df34af7c4e5ee57e1ff8def38b86d825e448996
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a significant portion pointing to Shopify domains hosting other PDFs. Crucially, one link directs to 'ttraff.com', a known malicious redirector. This suggests the document is part of a link farm or SEO poisoning scheme designed to lure users to malicious sites, likely for phishing or malware distribution.

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=brahmin+gotra+pdf
    • http://files.setxnewhorizons.com/uploads/1/3/1/6/131637606/cd87453ae5d.pdf
    • http://files.nicoleruysschaert.com/uploads/1/3/1/3/131380107/e9523.pdf
    • http://files.nordium.net/uploads/1/3/1/4/131437513/wojinizeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/23625889222.pdf
    • https://cdn.shopify.com/s/files/1/0438/2644/6496/files/arte_moderna_giulio_carlo_argan.pdf
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/68525029646.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/60257466664.pdf
    • https://cdn.shopify.com/s/files/1/0434/0596/7514/files/kelonafutenexamezevoxiput.pdf
    • https://cdn.shopify.com/s/files/1/0440/1656/6422/files/32894328563.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/66014253407.pdf
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/tic_tac_toe_game_c.pdf
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/xedeno.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9213/files/42911263644.pdf
    • https://cdn.shopify.com/s/files/1/0437/7991/5937/files/associao_de_geradores_exercicios_resolvidos.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/kakofogidovemon.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/26678134709.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_off000063cf.bin
113506881edd81e090a18cc5ae60b5e1eaa9e240aed47e187de95d3975e5d0b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CF 5296 bytes
font_01_sfnt_off000075ae.bin
3cca4afb54ce6b01b8d54adb7bb16c249739b31139268ac50e008d6f0084cdde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AE 10584 bytes

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