Malicious PDF — malware analysis report

Static analysis result for SHA-256 180d1da7a2243756…

MALICIOUS

PDF

35.1 KB Created: 2020-04-01 21:24:46 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dce029b825205d4f8265113b86878040 SHA-1: 77247f6bfb7e57bbf7b57a7cc8f3436e1b2d705a SHA-256: 180d1da7a2243756c524d5d25a4e8dd287b867f7e664752ed60a2342efea0b4f
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve as a link farm or redirect to malicious content, aiming to deceive users into clicking them. The ML classifier also strongly indicated maliciousness, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://web4umarketing.com/uploads/1/3/0/6/130620406/130620406.html#the+behavior+of+light+worksheet+answers
    • http://wickedricks.com/uploads/1/3/0/5/130588895/napote_xoret_favogov_warowekijo.pdf
    • http://allpeoplellc.com/uploads/1/3/1/0/131070688/1077322.pdf
    • http://hialeahpost.com/uploads/1/3/0/5/130551002/dinejisog-jitukup.pdf
    • http://jillbarbera6102832044.com/uploads/1/3/0/4/130483581/kebowitupa.pdf
    • http://julianafranciskelly.com/uploads/1/3/0/5/130544447/dovulavora-gutomapopugipan-kolesekevulu.pdf
    • http://marathonstories.com/uploads/1/3/0/6/130604902/dafubizanidarij.pdf
    • http://wjkwjkelectricalassociates.com/uploads/1/3/0/2/130272266/6202876.pdf
    • http://haveyouheradofmhh.com/uploads/1/3/0/2/130271001/wobamoladoz.pdf
    • http://decheapertrash.com/uploads/1/3/0/3/130323143/jirinu.pdf
    • http://thebestever.reviews/uploads/1/3/0/6/130621839/5441c02aa36bb21.pdf
    • http://jesseslandscapingma.com/uploads/1/3/1/4/131409055/1598836.pdf
    • http://shestealsdeals.com/uploads/1/3/0/6/130603809/nesaluwilazol_wirifoxa_paredak_sugitolo.pdf
    • http://canineobserver.com/uploads/1/3/0/7/130775744/midekude_musuzo.pdf
    • http://juniperdwight.com/uploads/1/3/0/7/130776088/fapumobojiromokasuti.pdf
    • http://dickinsongrowthconnector.com/uploads/1/3/0/9/130969893/2b4dcff6dce73.pdf
    • http://sweetscarlettacres.com/uploads/1/3/1/0/131070619/4057492.pdf
    • http://gracewalkfarm.com/uploads/1/3/0/4/130493476/7707632.pdf
    • http://logos-test.cityofdanville.org/uploads/1/3/0/5/130551249/6569612.pdf
    • http://befreetherapy.com/uploads/1/3/0/7/130775831/5642336.pdf
    • http://williwisedaycamp.com/uploads/1/3/0/7/130740008/628680.pdf
    • http://jilleunschmitt.com/uploads/1/3/0/7/130739508/094709c06f26.pdf
    • http://rusticroad.band/uploads/1/3/0/5/130590756/2099819.pdf
    • http://uticaforall.org/uploads/1/3/1/4/131437599/2343769.pdf
    • http://worldbankawards.com/uploads/1/3/0/2/130273931/8296940.pdf
    • http://militaryhistorylive.com/uploads/1/3/0/6/130621576/jidaduva-wedan-dinepore.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067ec.bin
8594c085bbd035efa54fb406dea73bad4ae585996072d7fb239ecdfa0c09859c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EC 6540 bytes

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