Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fa11472788731d8…

MALICIOUS

PDF

33.7 KB Created: 2020-03-13 11:21:38 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6f767935b16bcedf14d71661e0567bca SHA-1: b31d983833533ab505a0fcf84d02ed143e201d8e SHA-256: 3fa11472788731d884ff97a360addc948464ae9b00e4b3b3ff5641a5a2f5dc5f
62 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, identified as a link farm, designed to redirect users to external sites. The document body text, though partially corrupted, suggests a lure related to 'Algebra 2 book mcdougal littell', likely to trick users into clicking malicious links. The primary attack pattern involves social engineering to lead users to potentially malicious content hosted on the identified domains.

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://concordat3.pleasingfood.com/uploads/1/3/0/5/130589009/130589009.html#algebra+2+book+mcdougal+littell
    • http://erwiestesq.com/uploads/1/3/0/2/130289448/gawetefelazatagakusi.pdf
    • http://urbanrips.com/uploads/1/3/0/5/130551241/mororokimeje-norunelusetexe.pdf
    • http://www.nkeysjewelry.com/uploads/1/3/0/9/130969179/zatideralizijekigak.pdf
    • http://mx.shazzad.net/uploads/1/3/0/4/130491703/4474231.pdf
    • http://guantletters.com/uploads/1/3/0/3/130323295/xonoraf.pdf
    • http://c3s3.com/uploads/1/3/0/5/130541944/nogezevojij_duvov_powirajujapul_birosibukibujef.pdf
    • http://kerkveld42tekoop.com/uploads/1/3/0/2/130270937/pinipesakukazi.pdf
    • http://www.tavimoshop.com/uploads/1/3/0/5/130550681/1678306.pdf
    • http://divineelementsphotography.com/uploads/1/3/0/4/130493248/dotubenulawuxir.pdf
    • http://es.javierbatanero.com/uploads/1/3/1/0/131070216/4ef0448cb82899.pdf
    • http://belindaforportland.com/uploads/1/3/0/7/130776585/c3629ef9331.pdf
    • http://csconstantinetv.net/uploads/1/3/0/5/130588591/tagugajefof_woxesin_bexugaroxawe_povunosup.pdf
    • http://subaccounting.com/uploads/1/3/0/2/130273616/mavitawawekude_gajugilexazexa.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_off00005c4a.bin
a1d41e32f788a71c75033f20f4811326344a58c3731594e352f846cbe14b2f00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4A 7640 bytes

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