Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e96ed87370db84…

MALICIOUS

PDF

42.6 KB Created: 2020-04-12 09:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5fe0c9a7f5ab199c9b4597b771cf37e1 SHA-1: 2e00debb3b34b44a9cb7c678f6d5b88bbb9c9505 SHA-256: b0e96ed87370db84f6a96ebee6380bdf3a3d9eb659e8e176e9bf99bd44fc4f9c
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to other PDF files, which is indicative of a link farm used for SEO manipulation. One of the embedded URLs, 'http://renovationmgm.com/uploads/1/3/0/8/130873781/130873781.html#pokemon+mystery+dungeon+explorers+of+sky+download+rom+gba', appears to be a lure for downloading content. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is a malicious distribution method.

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://renovationmgm.com/uploads/1/3/0/8/130873781/130873781.html#pokemon+mystery+dungeon+explorers+of+sky+download+rom+gba
    • http://friendibles.com/uploads/1/3/0/6/130620620/zisiloxi_katazenam_makazugafax_rezarowom.pdf
    • http://pigfig.com/uploads/1/3/0/6/130639879/fuxovulozojibe.pdf
    • http://palmspringstowing.com/uploads/1/3/1/0/131070151/a6c143511280.pdf
    • http://villaourlady.com/uploads/1/3/0/7/130776225/8645265.pdf
    • http://giftscraftsnmore.com/uploads/1/3/0/2/130272070/5367668.pdf
    • http://fionasteele.com/uploads/1/3/0/6/130621895/mubabegobatuwowanaji.pdf
    • http://roofscout.net/uploads/1/3/1/4/131406115/e6d78c27.pdf
    • http://leahreusch.com/uploads/1/3/0/5/130542692/xutibiromutalimezez.pdf
    • http://patriotacreschimneysweep.com/uploads/1/3/0/9/130969991/zevomexuw.pdf
    • http://willpooleproducer.com/uploads/1/3/1/1/131163740/5662487.pdf
    • http://mgsesl.com/uploads/1/3/1/6/131637419/8733323.pdf
    • http://patriotacreschimneysweep.com/uplo
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000624c.bin
cda8cfa43cc59537cceee79ef601d344702f4f9439456e4558f1913af0b52c62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x624C 7972 bytes
font_01_sfnt_off000080db.bin
46ef6613342b9d66c5a24b6c523e9b03744b54e7546e4687ac2b6f46da0a9e8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80DB 8260 bytes

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