Malicious PDF — malware analysis report

Static analysis result for SHA-256 382e6fa7914a421a…

MALICIOUS

PDF

42.9 KB Created: 2020-03-27 10:30:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ae63dd590e97f049740ca54cff9963ca SHA-1: 3f9c872ead90b72695e7189306f1520aaf905723 SHA-256: 382e6fa7914a421abe9eef9417529b098542058a16a042c8c8c277d7d9049ba2
92 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 point to similarly structured URLs on different domains. The document body text, though partially obfuscated, suggests a lure related to 'sophisticated clients'. This indicates a likely phishing or malware distribution campaign. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://johnsonandsonsservices.com/uploads/1/3/0/4/130483856/130483856.html#que+es+un+cliente+sofisticado
    • http://bayareainternretreat.com/uploads/1/3/0/2/130287957/08bcdca3c7418b.pdf
    • http://mindfullmug.com/uploads/1/3/0/5/130589044/dofatizapaguxikigaf.pdf
    • http://www.diogenestheatercompany.org/uploads/1/3/0/2/130272477/5854946.pdf
    • http://www.hikeeswatini.com/uploads/1/3/0/5/130551788/6402008.pdf
    • http://www.nrg1n10.org/uploads/1/3/0/3/130323211/9096944.pdf
    • http://galaxycleaning.org/uploads/1/3/0/8/130874610/berasagadejovo.pdf
    • http://www.notesofarestlessmind.com/uploads/1/3/0/3/130312996/4853875.pdf
    • http://mta-sts.mail.delislechiropractic.com/uploads/1/3/0/8/130814132/refigedesesewit_dowaru.pdf
    • http://adventuresinedtech.com/uploads/1/3/0/5/130590653/4443303.pdf
    • http://themillionaireslink.com/uploads/1/3/0/6/130621758/3969f492a98d80.pdf
    • http://seeingtheforestforthetrees.org/uploads/1/3/0/5/130546434/xovox.pdf
    • http://crystalchilleddistilled.com/uploads/1/3/0/8/130813922/puxosiwetis_nirapusujin.pdf
    • http://timetravelersoforegon.com/uploads/1/3/0/6/130604486/9072122.pdf
    • http://www.canterburycakesupplies.co.nz/uploads/1/3/0/6/130604009/6d2c7efd5aa.pdf
    • http://polotechnologies.com/uploads/1/3/0/2/130288818/450029.pdf
    • http://amarismedical.net/uploads/1/3/0/9/130969593/nurodenuwiraba-vupenorijovujov-pukukezop.pdf
    • http://un-guilty.com/uploads/1/3/0/7/130776821/lutajamega_nodebolejosabu.pdf
    • http://reachsports.net/uploads/1/3/0/7/130739963/7229610.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_off00007c89.bin
4ac8c6ae95780c95bb369b7102114612d42bbe5599ed207c5c6211332df51ea1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C89 8924 bytes

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