Malicious PDF — malware analysis report

Static analysis result for SHA-256 2275e33d514590ef…

MALICIOUS

PDF

32.1 KB Created: 2020-04-11 01:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7252480f5280ac047fae8a3faaef80f0 SHA-1: e5173bf4f71417d561e811692033aeafc08dc4fe SHA-256: 2275e33d514590ef870cb76fc2afa66ea4019bf70e5aa2355568f3617ebaa392
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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, many of which appear to be part of a link farm designed to obscure the true malicious intent. The document body, though heavily obfuscated, also contains URLs that are likely part of this lure. The primary function appears to be directing users to potentially malicious external resources.

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://oakclass.com/uploads/1/3/0/6/130621456/130621456.html#guitar+grimoire+chords+and+voicings+pdf
    • http://junli2483.com/uploads/1/3/0/4/130483860/d6132a7458e47d.pdf
    • http://wilsonstaffingsolutions.com/uploads/1/3/1/4/131406449/4721413.pdf
    • http://johnnybravo.org/uploads/1/3/0/2/130288301/jasare.pdf
    • http://clarinethub.com/uploads/1/3/0/5/130539820/muzuwaxol_sijaxokugevi.pdf
    • http://stretchitout.org/uploads/1/3/0/8/130874150/ribuxi-dogebezaweso-xulumedefimodu-judaveke.pdf
    • http://laxoilpartners.com/uploads/1/3/0/3/130313000/jemosome.pdf
    • http://lawschooloutlines.org/uploads/1/3/0/6/130621530/5241364.pdf
    • http://www.backroadcreations.com/uploads/1/3/0/5/130590169/6997351.pdf
    • http://transglobal-industries-inc.com/uploads/1/3/1/3/131383973/11591141c7.pdf
    • http://makergal.com/uploads/1/3/0/4/130483136/107db.pdf
    • http://eccollectibles.com/uploads/1/3/0/6/130603865/74063a.pdf
    • http://raverflavor.net/uploads/1/3/1/1/131164538/resebe_letimofobu_fomabagutukuwe_wokitaba.pdf
    • http://wildlakesboutique.com/uploads/1/3/0/2/130289455/7648021.pdf
    • http://primeamazon.net/uploads/1/3/0/6/130605002/dunuxigazidaje.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_off000056cf.bin
6424946f3ffa60e49b6519373a027120f7147e3cd027cc8a9499c478468e088e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56CF 7440 bytes

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