Malicious PDF — malware analysis report

Static analysis result for SHA-256 c18106d05b7c32ec…

MALICIOUS

PDF

37.2 KB Created: 2020-05-22 14:59:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02c44bffeac1bf0dca386cae9c4de56e SHA-1: de0b9aef764c9abb8a3498c7cf2c6d4bc837959d SHA-256: c18106d05b7c32ec777328d9ba2203c6a88096f57894959a63575cd4ac5d7ef5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, many of which are numerically or generically named, characteristic of SEO spam or link farm techniques. The document body explicitly mentions 'Bypass icloud.deb file free download', indicating a lure to download potentially malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://oceansofthefuture.com/uploads/1/3/1/0/131070293/131070293.html#bypass+icloud.deb+file+free+download
    • http://empowerinparadise.com/uploads/1/3/1/4/131455198/podivumelibunab-dapowosabuguwi-vijajowakinebox.pdf
    • http://dovidroetter.com/uploads/1/3/1/4/131406855/473009.pdf
    • http://sportsnutritionfornonpros.com/uploads/1/3/0/4/130435609/1760363.pdf
    • http://heatherpaynter.com/uploads/1/3/0/5/130539810/7984fb7ef235e46.pdf
    • http://projektemitnc.com/uploads/1/3/0/3/130323547/falobisotokejix.pdf
    • http://minute-memories.com/uploads/1/3/1/4/131454549/xodulugigemurevulu.pdf
    • http://mymatchuptoday.com/uploads/1/3/0/2/130291689/jemesagoseno.pdf
    • http://liunalocal11.org/uploads/1/3/0/7/130776502/pemibob_tirepopef.pdf
    • http://teamsaleslink.ch/uploads/1/3/0/8/130874121/regudowub.pdf
    • http://monitheexplorer.com/uploads/1/3/0/5/130545742/90b6e.pdf
    • http://federalsolutions.com/uploads/1/3/0/7/130775610/mitobadejezatiwus.pdf
    • http://gigimagazine.store/uploads/1/3/0/5/130589099/fodejipa.pdf
    • http://bentleyurethane.com/uploads/1/3/1/6/131606874/26cb81.pdf
    • http://randallpllc.com/uploads/1/3/1/6/131637034/7590779.pdf
    • http://d-graphic.com/uploads/1/3/1/1/131163516/rasamipibiberofeta.pdf
    • http://utopianremodel.com/uploads/1/3/0/4/130436313/c09d5e.pdf
    • http://masoudhleis.com/uploads/1/3/0/6/130604104/7963635.pdf
    • http://crusadegroup.org/uploads/1/3/1/3/131383380/9241b122ae82.pdf
    • http://szambabetonowe-poznan.pl/uploads/1/3/1/3/131398066/wutaj-pomugeduruw.pdf
    • http://thegloow.be/uploads/1/3/0/6/130621952/4120d33.pdf
    • http://dollyssafehouse.com/uploads/1/3/1/4/131437317/rofizabuwe.pdf
    • http://qualtechpacific.net/uploads/1/3/0/2/130289813/tuzadexageren.pdf
    • http://policevictimsmemorial.com/uploads/1/3/0/5/130539678/86b43d12a743f.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_off000064eb.bin
88a245f0b85e7185a6a12b4eabcb4e52edffc40769da3913b5bf973ec679cbaa
pdf-font-stream PDF embedded font (sfnt) at offset 0x64EB 10452 bytes