Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6bba62db1acb45d…

MALICIOUS

PDF

65.3 KB Created: 2020-03-22 08:47:55 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6166482c651556a148585cc67f2e087d SHA-1: 57ac0ba502d763b4ba2e5741d6cacbac37d6d490 SHA-256: c6bba62db1acb45db936e84c0a19375493f6433e0332c3e5e93b3adef78061eb
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains a reference to 'Bhagavad gita as it is in hindi book' and the wkhtmltopdf application, which may be a lure. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://kimengdahl.net/uploads/1/3/0/7/130775647/130775647.html#bhagavad+gita+as+it+is+in+hindi+book
    • http://mta-sts.mail.canisteowesleyanchurch.com/uploads/1/3/0/4/130477083/447d972.pdf
    • http://magnoliaponds.biz/uploads/1/3/0/5/130551185/8566334.pdf
    • http://scout-troop76.com/uploads/1/3/0/6/130620380/3649776.pdf
    • http://rjwknnkaasdasagg.net/uploads/1/3/0/5/130540116/8260065.pdf
    • http://sigoaprendiendo.com/uploads/1/3/0/3/130323159/fipefip_taxirudi_sijejux_mebulakadotirog.pdf
    • http://tshouse.org/uploads/1/3/0/6/130605030/4fff3e.pdf
    • http://www.cardcardgroup.com/uploads/1/3/0/2/130287283/rifufifu.pdf
    • http://blackbooktales.com/uploads/1/3/0/4/130483477/4168582.pdf
    • http://westendbarbershop.com/uploads/1/3/0/7/130739039/nogitofuvavobes.pdf
    • http://jogen.org/uploads/1/3/0/6/130620760/kadijutaxozut-wedakaka.pdf
    • http://goldentherapies.org/uploads/1/3/0/2/130271042/kuwawavoxekos.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000897c.bin
7c5c4f7b1f03fdd7dd28bf42c8165901b88efef0ac1859088ea38f120ad32194		 pdf-font-stream PDF embedded font (sfnt) at offset 0x897C 7636 bytes
font_01_sfnt_off0000a752.bin
1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA752 1388 bytes
font_02_sfnt_off0000aef0.bin
ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF0 16028 bytes
font_03_sfnt_off0000c33e.bin
7c288b738a6e078a0b033dcd94b0ef897fe49044a5db31641c8b938865ced41b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC33E 17700 bytes

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