Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac9ec5cc99672923…

MALICIOUS

PDF

38.2 KB Created: 2020-06-12 15:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8802a615147ede0d0a0057a37b7b4a67 SHA-1: e34659559c8c6512f8657e48c331e755cdf606d9 SHA-256: ac9ec5cc996729236ea74f5300682d78bb1775ee10e19cb5513fe4f53bc08748
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. The document body, though partially corrupted, also contains URLs pointing to external resources. These links likely serve to direct users to malicious content or to manipulate search engine rankings. The primary attack pattern involves luring users to click on these links, potentially leading to further compromise.

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://chuzhappy.com/uploads/1/3/1/3/131398052/131398052.html#las+batallas+en+el+desierto+jos%25C3%25A9+emilio+pacheco+ensayo
    • http://1b9.undesirable.us/uploads/1/3/0/7/130776350/biwojomigaxar.pdf
    • http://mspennylane.com/uploads/1/3/1/6/131606864/12257f6327.pdf
    • http://emperorscleaners.com/uploads/1/3/1/6/131636644/cf82388.pdf
    • http://fortunabeauty.com/uploads/1/3/1/4/131453267/1166812.pdf
    • http://ns1.vision-networking.ca/uploads/1/3/0/8/130874204/1343989.pdf
    • http://saintwools.com/uploads/1/3/1/0/131070571/8133782.pdf
    • http://realsincerelyla.net/uploads/1/3/1/4/131452800/kiropiz.pdf
    • http://mta.safehavenworship.com/uploads/1/3/0/7/130740492/kuxavanu-kijunezavo-zifab.pdf
    • http://kelowman.people.ua.edu/uploads/1/3/0/3/130379380/131507.pdf
    • https://nijikotifi.files.wordpress.com/2020/06/26324383536.pdf
    • https://xovezuxa802976098.files.wordpress.com/2020/06/fatudef.pdf
    • https://rovizemafogi.files.wordpress.com/2020/06/jizalama.pdf
    • https://xusogoresob.files.wordpress.com/2020/06/30372458390.pdf
    • https://zazozimoje.files.wordpress.com/2020/06/filazenopawexalazixudelif.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000663a.bin
79e013562dd2aa502bb9acc3f35fc514d7e6023c937c99614ce597e129eef29e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x663A 11036 bytes

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