Malicious PDF — malware analysis report

Static analysis result for SHA-256 b391f7e7731ca442…

MALICIOUS

PDF

29.7 KB Created: 2020-04-01 18:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5a0ce4c61fe276baed9d964b1a59a7c7 SHA-1: 90b0551a43dd05e86e517be0ece69e7d617d928e SHA-256: b391f7e7731ca4424f4f426c3c9db96d8638c2c5caa0ee53255a51229ed5b492
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body contains a song lyric, likely a lure to disguise the malicious intent. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution methods.

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://renafunke.de/uploads/1/3/1/4/131437641/131437641.html#hush+little+baby+don%27t+say+a+word+song+lyrics
    • http://dronestuff.com/uploads/1/3/0/9/130969452/7f698.pdf
    • http://tdwmakeupartistry.com/uploads/1/3/0/5/130551270/e705a992b.pdf
    • http://upcountrytow.com/uploads/1/3/0/9/130969471/db47efe4d787e.pdf
    • http://penelopesattic.com/uploads/1/3/0/4/130476043/07caf.pdf
    • http://theplayerssocceracademy.com/uploads/1/3/1/3/131384789/pajasujidewidajenet.pdf
    • http://apparecchiacusticiaroma.it/uploads/1/3/0/6/130604465/jolubetezasifozidix.pdf
    • http://rail66.com/uploads/1/3/0/6/130621713/kiwiwi-tagogonefomova-moresepumobimep-sevevatove.pdf
    • http://larrybrownjrlaw.com/uploads/1/3/0/7/130776025/c2b5e87e4cd.pdf
    • http://alicezhouilc.com/uploads/1/3/0/9/130969966/fefisolobatiwi_debavafib_jexoxekosaxexiv.pdf
    • http://northshorebostonrealtor.com/uploads/1/3/0/7/130740015/f9f490.pdf
    • http://jmcounselingsolutions.com/uploads/1/3/0/5/130539987/zijusesevafumo.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_off00005050.bin
863da5f87adf4565faef2fc76ff3951cc4e1024c4f7d0df49e637a0e3d83a714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5050 6300 bytes

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