Malicious PDF — malware analysis report

Static analysis result for SHA-256 b745f2af44d57ad6…

MALICIOUS

PDF

35.8 KB Created: 2020-05-08 22:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 51bada4225ed275d3c60a886d0e011f2 SHA-1: 8e160de7cac292c140257b1c1de7585ef487097e SHA-256: b745f2af44d57ad6cac31484f654de34d1cd42b5daa6fdf57115a120ebec797c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many of which are numerically or generically named PDFs, suggesting a link farm for SEO manipulation or to host malicious content. The document body explicitly mentions 'Facebook messenger application for pc free', which is a common lure for phishing or malware distribution. The embedded URLs point to various domains, all likely part of the same malicious infrastructure.

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://rehphotography.org/uploads/1/3/0/4/130436390/130436390.html#facebook+messenger+application+for+pc+free
    • http://alecswirczek.com/uploads/1/3/1/3/131379696/3606251.pdf
    • http://snackmaria.com/uploads/1/3/1/3/131380966/rumeb.pdf
    • http://justjoyliu.com/uploads/1/3/0/5/130590456/delazin_kovab_gosozerarug_vosusenodinuba.pdf
    • http://gretchengrey.com/uploads/1/3/0/2/130287291/558747ba29.pdf
    • http://electrosense.com/uploads/1/3/0/3/130379272/6848838.pdf
    • http://realestatemg.com/uploads/1/3/0/4/130435659/norezes.pdf
    • http://sapphiremaidcleaningservice.com/uploads/1/3/1/4/131438282/dilozot.pdf
    • http://motorhomeminibreaks.net/uploads/1/3/0/8/130873895/c761d46ad7.pdf
    • http://danielgarberllc.com/uploads/1/3/0/6/130639913/e14cf67.pdf
    • http://theteachereffect.com/uploads/1/3/0/7/130739449/7988716.pdf
    • http://internationaldevelopmentexperts.com/uploads/1/3/1/6/131606175/a71307255b.pdf
    • http://dianamccollum.com/uploads/1/3/0/6/130604650/pejifuvokiku.pdf
    • http://iridescenthealthandwellness.net/uploads/1/3/0/5/130589033/jifunituwebebi.pdf
    • http://themcl.space/uploads/1/3/0/9/130969130/gerazov.pdf
    • http://childfreedom.net/uploads/1/3/0/8/130874613/tujobopevowufexabod.pdf
    • http://harmonizedhelp.com/uploads/1/3/0/4/130435746/bce1ef25f1f1e2.pdf
    • http://beautifulparty.nl/uploads/1/3/0/2/130271030/287705d2703.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00005eb0.bin
c14029f03fa0a542f772faeb5dd22ac0cc50d0d1a5eabd43b764e8168cbcf13d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB0 11384 bytes

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