Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe59053ffcc1eec…

MALICIOUS

PDF

40.5 KB Created: 2020-08-12 10:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c1030f85a0a58e773020d968709469b SHA-1: 70a91d4bbe0295977e3fed1be312109b99d0abc9 SHA-256: dbe59053ffcc1eec9030253f585523822beb077c1fef5fbb4867e097617b1c9d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the string 'Caccia al tesoro compleanno pdf' and the malicious URL, suggesting a lure for a treasure hunt. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

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=caccia+al+tesoro+compleanno+pdf
    • http://files.thepathofservice.org/uploads/1/3/1/4/131407849/tokigedut.pdf
    • http://files.storytimewithteta.ca/uploads/1/3/0/8/130874338/ba62b7.pdf
    • http://files.tiffanynewman.net/uploads/1/3/1/1/131164351/fomegunasafegab_vekanazedul_rutotedivexisu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9036/9959/files/belfast_confetti_poem.pdf
    • https://cdn.shopify.com/s/files/1/0431/2347/4583/files/ap_grama_sachivalayam_syllabus_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/juegos_wad_wii_ntsc_mf.pdf
    • https://cdn.shopify.com/s/files/1/0430/5597/2505/files/15118689952.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdf
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/wuzuwafanapunetofonivin.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/noxenoka.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4466/files/41122895766.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/7514063634.pdf
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/xasokavujofekin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/jifupewene.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_off0000607b.bin
b70427e8a6bf952bbb2118a185d4682c800519d0c0d68a52b18992c8d5c79442		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607B 5208 bytes
font_01_sfnt_off0000720d.bin
f1d46951e6ff694f61a1494ac9bc0ca401aa3fd2f1c1c8d7cb7efe378e9f87de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x720D 11012 bytes

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