Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1963d691ddf6043…

MALICIOUS

PDF

49.6 KB Created: 2020-03-09 10:20:09 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 624932af46c5ee9a060b8887f1c0ec1b SHA-1: 42fea382df803488ef57c662281abceb02a83b3c SHA-256: c1963d691ddf6043e96f916cc73f49ef01729e6e5d406b47b53c06cbebb30127
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are structured to appear as SEO-friendly academic documents. The document body mentions 'Alagappa university dde mba exam time table december 2019', suggesting a lure to trick users into clicking these links. The primary heuristic 'PDF_SEO_LINK_FARM' indicates a malicious intent to redirect users to potentially harmful content hosted on various domains. 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://mrstruitt.com/uploads/1/3/0/7/130740623/130740623.html#alagappa+university+dde+mba+exam+time+table+december+2019
    • http://mypathwaytosuccess.org/uploads/1/3/0/7/130776264/988195d4d7ba.pdf
    • http://biurorachunkowe-sylwialukasik.pl/uploads/1/3/0/6/130639753/f74a5ee240.pdf
    • http://soleiltranslation.com/uploads/1/3/0/6/130603696/3673889.pdf
    • http://doctorfieser.com/uploads/1/3/0/2/130289569/jisot.pdf
    • http://revolutionpick.net/uploads/1/3/0/8/130814101/gotapuxuvovogane.pdf
    • http://motortainment.com.au/uploads/1/3/0/8/130814328/4891265.pdf
    • http://ns2.elaineromero.com/uploads/1/3/0/5/130588318/logokari_tudosu.pdf
    • http://dichvulamseowebsite.com/uploads/1/3/0/6/130639251/gamatowelate-jupimunikelen.pdf
    • http://easyfootcare.com/uploads/1/3/0/6/130639107/zolotorivapu.pdf
    • http://elevitae.com/uploads/1/3/0/7/130775935/4352480.pdf
    • http://hostmaster.fhlcfoundation.org/uploads/1/3/0/5/130543685/bc050f22c.pdf
    • http://mta-sts.fundinghopesociety.com/uploads/1/3/0/7/130775200/7836448.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a33.bin
92af303fa838fb33bb4046d0036f96398f372f5a440431e14a49e4dd3c1faf13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A33 9776 bytes
font_01_sfnt_off00008433.bin
edb6c2adcc32d140faec3ce8997b287bf128af9791ec6640bc761615c623fe75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8433 8020 bytes
font_02_sfnt_off0000a37a.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA37A 16036 bytes

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