Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a60d9b8f43d34a…

MALICIOUS

PDF

60.2 KB Created: 2020-08-23 09:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fec319bc75a898e2f44cb57620910bfe SHA-1: a50e95d8e12ad0f57b6c5b658caa9a6ae87fd986 SHA-256: 22a60d9b8f43d34aedcd53c49c620acd447e4e0799ae1e4c3da98cbbe3cb4984
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=basilea+2+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The primary attack pattern involves luring users through these links to potentially malicious destinations.

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.cc/pify?keyword=basilea+2+pdf
    • http://mezawor.fbtrans.co.uk/uploads/1/3/1/3/131381078/8d05477c.pdf
    • http://files.gahistorians.org/uploads/1/3/0/7/130776200/fogogezed_naxagijuzi_pofimexuw_rujutawiz.pdf
    • http://files.nations-beauty.com/uploads/1/3/2/6/132681438/3462453.pdf
    • http://files.allezmag.co/uploads/1/3/0/7/130739037/tuwazib-gimed-mikareliga-xululad.pdf
    • http://files.sebringangels.com/uploads/1/3/0/8/130814254/303265.pdf
    • https://cdn.shopify.com/s/files/1/0441/2122/7416/files/fifabadovikusibipi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/application_of_biostatistics_in_public_health.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/ways_to_improve_self_esteem.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/12791257671.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/96315347798.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/povumad.pdf
    • https://cdn.shopify.com/s/files/1/0437/6929/9098/files/50213179459.pdf
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/jixarekikomozedolaneri.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/48531852967.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/files/1/0430/0872/10

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae0a.bin
4083f9add9f9553f3d514ad9bfb41b7f3ad9c0151b6896a00cce991c997f3979		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE0A 5120 bytes
font_01_sfnt_off0000bf89.bin
0a11e3773f2b9e93146f858e1ad5fdeac0ca2036055beee8acf4779f3220900f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF89 10924 bytes

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