Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0aaadc9a22acff…

MALICIOUS

PDF

33.5 KB Created: 2020-04-11 05:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3d436307081dfa17e10ee7ea27980813 SHA-1: db4f23a56bd83bfa6c53ef729bc0860cacff4c50 SHA-256: 2c0aaadc9a22acffa1cbdc14b4d533195f57a70a0bb51dd80ed664e88f745ebb
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body text suggests a lure for downloading a biology book, which is likely a pretext for directing users to these malicious links. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to distribute malware. The primary URL found in the document body is http://myentouragemusic.com/uploads/1/3/1/4/131437313/131437313.html#excel+and+succeed+biology+book+4+pdf+download.

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://myentouragemusic.com/uploads/1/3/1/4/131437313/131437313.html#excel+and+succeed+biology+book+4+pdf+download
    • http://eaglespiritgallery.ca/uploads/1/3/1/4/131413222/4378031.pdf
    • http://mail.facialsbyjada.com/uploads/1/3/0/9/130969510/12da2fa9b89.pdf
    • http://squirtdome.com/uploads/1/3/1/3/131383630/f1f7258b406e1bb.pdf
    • http://stemkids.net/uploads/1/3/0/4/130488217/5852639.pdf
    • http://trafficsecretswaitlist.com/uploads/1/3/1/4/131413550/5ddac8.pdf
    • http://pillowhaven.net/uploads/1/3/0/4/130488816/4691895.pdf
    • http://lindensfresh.com/uploads/1/3/0/6/130604255/vusajinanodopu_girijili_zadala.pdf
    • http://handbags-by-rosa.com/uploads/1/3/0/8/130814448/wofogis_pugosarak_polumubiwik.pdf
    • http://archonitsolutions.com/uploads/1/3/0/4/130483990/3e8b775698304.pdf
    • http://katiecoxandcompany.com/uploads/1/3/0/4/130488251/7a75d1dfc37bfa4.pdf
    • http://the-belly-up.com/uploads/1/3/0/7/130775683/patapiv-lumot.pdf
    • http://photo-sport-automobile.fr/uploads/1/3/1/3/131383753/famegesibujegi.pdf
    • http://zeolitehr.com/uploads/1/3/0/2/130288378/1179281.pdf
    • http://northforktrees.com/uploads/1/3/1/4/131405976/vamepujab.pdf
    • http://instructioncoin.org/uploads/1/3/1/1/131164223/pinozivegifuran-mapan.pdf
    • http://zeolitehr.com/uploads/1/3/0/2/130288378/1179281.p
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058fa.bin
0ddd18cef25fbb298896488b3b55e4c7ac6f7245c710b5eaaf9c68d80f53c4a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58FA 7928 bytes

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