Malicious PDF — malware analysis report

Static analysis result for SHA-256 232111dfd0ed8d73…

MALICIOUS

PDF

45.3 KB Created: 2020-08-28 16:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 474b28b233a23f68f102d32063e2e568 SHA-1: f7fc9d9ea42d33894de6211ec606663516cb7663 SHA-256: 232111dfd0ed8d738a0fd09fa23a74f13cdb0dead2802efcb668bd6ae274426b
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 Shopify domains hosting other PDFs. One critical heuristic indicates a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting the document's primary purpose is to trick the user into visiting this 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=de+cero+a+uno+pdf+peter+thiel
    • http://letudaz.sprinklesfabulous.com/uploads/1/3/1/0/131070374/winej-bepaf.pdf
    • http://files.cathybenedict.com/uploads/1/3/1/0/131070625/8067036.pdf
    • http://files.lilys4paws.com/uploads/1/3/0/8/130874169/2708dd4e31.pdf
    • http://files.dobwallsjuniorsfc.co.uk/uploads/1/3/0/9/130969338/0bfec363da29.pdf
    • http://files.victoriaheathart.com/uploads/1/3/0/7/130775484/3606163.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/82326708480.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/2484787161.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8673/files/24675061694.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/bamaxudasigemal.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/remox.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/87109373986.pdf
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/46860546375.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zugazad.pdf
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/xutapopejemusode.pdf
    • https://cdn.shopify.com/s/files/1/0437/0409/0792/files/tapepemijibuli.pdf
    • https://cdn.shopify.com/s/files/1/0439/7016/6942/files/north_west_construction_hub.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/56607177077.pdf
    • https://cdn.shopify.com/s/files/1/0433/4397/0463/files/74059465230.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/92956596962.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_off0000729e.bin
6d576b9c93fbfba3a9b9a4a686a338d53ce3e92d20dfda84acefc94987aa9ff6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x729E 5064 bytes
font_01_sfnt_off000083cb.bin
05f5c00947e33d6dfe4fcb2d09c391b194ee81bbe83be26ccdf8640bb4a8a576		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83CB 11028 bytes

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