Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f61ebed3c6aa34…

MALICIOUS

PDF

100.3 KB Created: 2020-08-03 04:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80616a30bfeec225c3227f0b29a1058d SHA-1: 22747d2d895bddb90c14693bcc375211db41f6c0 SHA-256: c0f61ebed3c6aa34e076d9be4bfaea3b90350a992c4e665a3fda703ee46abd11
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the same as the one identified by the heuristic. This suggests the primary purpose is to redirect the user to malicious content, likely for further exploitation or phishing.

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+hobbit+jrr+tolkien+pdf
    • http://files.chaletmalouin.com/uploads/1/3/1/8/131872110/4531940.pdf
    • http://files.jeremybroussardlpc.com/uploads/1/3/1/4/131408024/zuxinubilojebigam.pdf
    • http://files.gillespiepubliclibrary.org/uploads/1/3/1/8/131856173/bugelo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/garovupo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6598/2632/files/tukolagiretuta.pdf
    • https://cdn.shopify.com/s/files/1/0437/3161/5909/files/xosegu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/timuxopodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0913/8075/files/wukapinabasefewudo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/wovosidilisorazagivo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/79925605619.pdf
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/8550320882.pdf
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/maytag_centennial_dryer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/xamutobuxofenufum.pdf
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/34902942782.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/city_maps_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0431/4945/9605/files/12716069921.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5523/files/zokezakefobizegenodelobar.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_off00014c1e.bin
65484313a28b4d93ff39557606bd7b3131f5acec50063f2414816570bfb283f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C1E 4968 bytes
font_01_sfnt_off00015d00.bin
da142756a8dd2effce5105b808c7f14eb9f9fc9334e694bda4d10a8043b0faa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15D00 11400 bytes

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