Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae095c1773fe78f4…

MALICIOUS

PDF

57.3 KB Created: 2020-03-28 13:16:23 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 46c4917f522cd2b7d0b141690ebce14f SHA-1: 80ff1427b43c437f25c751118d86e132bac6d6a6 SHA-256: ae095c1773fe78f4b9a4743b1df8dfb571220d54af13c718de4e4c741ad0bb4c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO spam tactic. The document body, though partially corrupted, contains text related to 'sindrome de noonan' and references the wkhtmltopdf generator, indicating it's likely a lure to direct users to potentially malicious or unwanted content hosted on the numerous external domains. No scripts were extracted from this sample.

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://lifteens.com/uploads/1/3/0/7/130775515/130775515.html#caracteristicas+de+ni%C3%B1os+con+sindrome+de+noonan
    • http://mgeducation.net/uploads/1/3/0/5/130541597/birotigifevogegadu.pdf
    • http://eonalbany.com/uploads/1/3/0/4/130483498/e19adc2cf.pdf
    • http://limetreesoapandbeautyltd.com/uploads/1/3/0/9/130969485/xorigakebaw.pdf
    • http://merlotgroup.com/uploads/1/3/0/8/130874671/xepufitatenebal.pdf
    • http://www.alessandrocorezzola.org/uploads/1/3/0/3/130312925/c84e1ea.pdf
    • http://englishconversationclass.com/uploads/1/3/0/5/130540211/43131.pdf
    • http://equitytradinglabs.org/uploads/1/3/0/4/130490928/7428887.pdf
    • http://lsfinancial17.com/uploads/1/3/0/7/130776756/sanetojudu.pdf
    • http://www.cctcm.org/uploads/1/3/0/6/130604968/fiwux.pdf
    • http://charlestonlowcountrymarinesurvey.biz/uploads/1/3/0/5/130539416/3207495.pdf
    • http://bravocare24.com/uploads/1/3/0/6/130604249/vemusifir.pdf
    • http://kirshco.com/uploads/1/3/0/6/130622095/5fdf2627.pdf
    • http://737jetcharter.us/uploads/1/3/0/7/130776659/3998067.pdf
    • http://atlanticcity-bachelorparty.com/uploads/1/3/0/8/130813888/dukovisuzit-sopezofatolu-laxulu.pdf
    • http://knoxfoodtours.com/uploads/1/3/0/5/130551505/wurerow_zamumumufevukak_lorire_nufuzojonob.pdf
    • http://ashleyrivardo.com/uploads/1/3/0/6/130639282/ludosalokajiro.pdf
    • http://spectrarte.com/uploads/1/3/0/6/130639763/8271065.pdf
    • http://www.bellabuchananconsulting.com/uploads/1/3/0/5/130590777/8697932.pdf
    • http://autodiscover.thollfence.com/uploads/1/3/0/6/130605097/ca273c929.pdf
    • http://deepdixiepleasurehorseclub.com/uploads/1/3/0/3/130313555/573951bbb5654d.pdf
    • http://rheadatta.com/uploads/1/3/0/8/130813780/guxefowanozosesek.pdf
    • http://truckerdatingusa.net/uploads/1/3/0/7/130738943/6032939.pdf
    • http://kinderharp.com/uploads/1/3/0/2/130272862/xejozemafuxowo.pdf
    • http://gypsylogic.com/uploads/1/3/0/8/130873973/95ef4f.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_off00009e70.bin
a93349c075159faaf961fd70975a74fda22f9693069c8f2acea8d18ae9173fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E70 9092 bytes
font_01_sfnt_off0000bf50.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF50 16036 bytes

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