Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6c5030071acf73a…

MALICIOUS

PDF

37.0 KB Created: 2020-06-22 03:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 14a523d6bb5aeb85a753696b945ee568 SHA-1: b36e18802d49cd9249788367b70cf8aef34cac56 SHA-256: f6c5030071acf73a78844fee6e8b1d74aecd4b690a373a29d03146e9e65bee3e
70 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 point to other PDF files hosted on various domains. This behavior is indicative of a link farm, likely intended to host or distribute malicious content. The document body text, while appearing benign, is used as a lure to encourage users to interact with the embedded links.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://goalscoach.info/uploads/1/3/0/6/130604177/130604177.html#illustrated+guide+to+english+paper+piecing
    • http://onalee.vip/uploads/1/3/1/6/131607152/402666ae9bf67fb.pdf
    • http://johnspencermusic.com/uploads/1/3/0/9/130969816/romin.pdf
    • http://webmail.madeinbrazilutah.com/uploads/1/3/1/3/131383751/zumetakus_jikoputesur_kekofajugoligup_danegev.pdf
    • http://moiessentials.com/uploads/1/3/1/3/131384254/molerud-mawaf-gevebogug.pdf
    • http://gloriouslygoodguts.com/uploads/1/3/1/4/131407300/4660652.pdf
    • http://tw.mooieco.com/uploads/1/3/0/8/130813546/33a8e.pdf
    • http://webdisk.muebleriatorres.net/uploads/1/3/0/6/130604958/b97103316107.pdf
    • http://homegrownevents.org/uploads/1/3/0/5/130551363/nebivud_newevekogijunad_dozover_kixibogusaba.pdf
    • http://430.undesirable.us/uploads/1/3/0/8/130813652/buguwonapu.pdf
    • http://cpanel.mayoabbeyns.com/uploads/1/3/0/6/130604632/8f14d01b.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_off0000527a.bin
1c27f29ca63c5f0e884872dcd3ac0523be25ce808fa7e00eaaa10464e449b297		 pdf-font-stream PDF embedded font (sfnt) at offset 0x527A 5156 bytes
font_01_sfnt_off000063ed.bin
d42c7f1a38dfc1c89f8b0560cd48e2aeda0bf72a4077f86d17ebbb48f9d29bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63ED 10532 bytes

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