Malicious PDF — malware analysis report

Static analysis result for SHA-256 530aa90c089b246b…

MALICIOUS

PDF

32.6 KB Created: 2020-05-15 12:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c5df86e57d19b2f45b2c2fde9dc560d SHA-1: d0ddfbdb63ce84fec88f18db6626acae4b1a5f87 SHA-256: 530aa90c089b246b1a8ecc82f9ffe2dce083cb8d7e232c8c11f5352a80a74874
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF file contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though heavily obfuscated, contains a URL that also appears in the heuristics as a 'PDF_URI' and is presented in a way that suggests a call-to-action. This indicates a likely attempt to direct the user to malicious content or downloads. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://armorgrind.org/uploads/1/3/0/2/130273850/130273850.html#performance+parts+for+bmw+m4
    • http://signaturestyling1.com/uploads/1/3/0/8/130873869/dufurosebojepar.pdf
    • http://samonephotography.com/uploads/1/3/0/9/130969718/8005987.pdf
    • http://uvutilities.com/uploads/1/3/0/2/130272909/3070630.pdf
    • http://claimlostfunds.com/uploads/1/3/1/3/131398131/katobi_korawofiseves.pdf
    • http://thecookonthecoast.com/uploads/1/3/0/4/130435848/4210976.pdf
    • http://majidalrawahi.com/uploads/1/3/0/5/130590261/802544.pdf
    • http://rophesministries.com/uploads/1/3/0/5/130544043/pabitumetom_zofetupabotef_lelunixuji_suvekena.pdf
    • http://mynavyfitrep.com/uploads/1/3/0/7/130776517/tusugar-ronumu-duwimadetaw.pdf
    • http://thebestdog.net/uploads/1/3/1/3/131380120/moronofugeki-dolafopunokuf.pdf
    • http://electronor.org/uploads/1/3/0/6/130620644/jezaduzazovuw.pdf
    • http://heenanferris.com/uploads/1/3/0/6/130639734/rovowa.pdf
    • http://urbanadanceco.com/uploads/1/3/0/7/130776388/ec3d4c603c0.pdf
    • http://rwandalawoffice.com/uploads/1/3/0/9/130969835/27368f43f.pdf
    • http://thedrakebareugene.com/uploads/1/3/1/4/131453494/8fb6637.pdf
    • http://homemortgage.services/uploads/1/3/1/3/131379420/mavidujekejufus.pdf
    • http://completenaturalent.com/uploads/1/3/0/5/130551554/rasago.pdf
    • http://backtobal.services/uploads/1/3/0/6/130640209/42b3014e327911.pdf
    • http://vegetablejewelry.com/uploads/1/3/1/4/131438676/9703795.pdf
    • http://millenniuminternational.biz/uploads/1/3/0/7/130739773/55d88.pdf
    • http://themadfashion.nyc/uploads/1/3/1/3/131398123/aa0325d.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_off00005577.bin
4e5b6a16dbd2dfb70e65258a86a62f2cdc9db3cca3b9fe62c80bdacee154e081		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5577 9876 bytes

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