Malicious PDF — malware analysis report

Static analysis result for SHA-256 36edf8c4be8f0124…

MALICIOUS

PDF

35.4 KB Created: 2020-05-09 02:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d8a27ad1583d148e67a311b0ea3a49c SHA-1: 6d9cfddf8e3cd57b11100d4fb2551a10692c7852 SHA-256: 36edf8c4be8f01248cb780da0a083e24ccefca94783f61d997170a329177b54a
92 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, characteristic of a link farm or SEO spam campaign. The document body, though partially corrupted, suggests a lure related to weather reports. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a mass external link farm. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://aiglobal.ca/uploads/1/3/0/7/130738921/130738921.html#flagstaff+arizona+annual+weather+report
    • http://powgirls.org/uploads/1/3/0/5/130588940/xelofej_lefawuki_dawovin_fisasalo.pdf
    • http://ignitebreese.com/uploads/1/3/1/4/131438481/numanapavusojoz_zugeminukug_jibarasiworoze_sikoleguv.pdf
    • http://thebeautifultrail.com/uploads/1/3/0/2/130273733/lepan-tudexaxogepi-nafofupirofi.pdf
    • http://limitlessclothingsupply.com/uploads/1/3/0/6/130620314/8042096.pdf
    • http://brookhavennews.net/uploads/1/3/0/5/130589209/gabeladev_fiwor.pdf
    • http://valleyembroidery.net/uploads/1/3/0/8/130814176/nomatade.pdf
    • http://sacroimperioawardsorlando.net/uploads/1/3/0/3/130313427/zoxoziwezimo_meziwil_zulaz_dipofelogewa.pdf
    • http://gdjhandymanservice.com/uploads/1/3/0/6/130603939/dufesobafodu_latusevazew.pdf
    • http://richardwizardpitiger.com/uploads/1/3/0/6/130603763/vokas.pdf
    • http://sweetkaterz.com/uploads/1/3/0/3/130323697/6c33a52.pdf
    • http://vrtim.com/uploads/1/3/1/3/131382786/4947065.pdf
    • http://karleykolors.org/uploads/1/3/0/2/130291493/novexi-fozebabovabi-maponejoru.pdf
    • http://edgar-wallace.net/uploads/1/3/1/4/131406841/figiruteravufag.pdf
    • http://coastlandsmusic.com/uploads/1/3/0/5/130590702/7047022.pdf
    • http://cofimpro.com/uploads/1/3/0/5/130590295/612613.pdf
    • http://jmhspoodlesandpyrenees.com/uploads/1/3/0/8/130814250/tokonugijelovi_tepusu.pdf
    • http://snaplox.ca/uploads/1/3/0/5/130588790/9769910.pdf
    • http://roxiticustech.com/uploads/1/3/0/3/130312984/tofobuvaga.pdf
    • http://tyingtheknotweddingflowersanddesigns.com/uploads/1/3/1/4/131483053/silaxaxenor.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006809.bin
e9af5f1b5642f3acac254876015b648b70308300adf69c708d9c8d12939e02a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6809 10772 bytes

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