Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b150d7809313fd2…

MALICIOUS

PDF

41.0 KB Created: 2020-06-18 04:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2884de472b1ed48abdd74a4a5effe3c SHA-1: be63f25aefa749755a6f943c95cd5ea331e38f3c SHA-256: 8b150d7809313fd2ae59611734de919fe6b6436fa26804dba07abe3ed660be0e
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates this behavior. While no scripts were extracted, the presence of numerous links suggests a delivery mechanism for further malicious payloads or to direct users to phishing sites.

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://angelinamagic.com/uploads/1/3/0/6/130604126/130604126.html#any+pdf+to+dwg+converter
    • http://zensuiteseattle.com/uploads/1/3/0/4/130476114/9551995.pdf
    • http://autodiscover.loutildelapub.ca/uploads/1/3/0/9/130969373/basuj.pdf
    • http://mail.newmorningacres.com/uploads/1/3/0/7/130738936/devumibe-woladopugukemo-lufotolemanax.pdf
    • http://webdisk.webcard.online/uploads/1/3/0/7/130776078/ralazododexenakaluxe.pdf
    • http://thomasfam.ca/uploads/1/3/0/9/130969910/vumujige.pdf
    • http://2ey.undesirable.us/uploads/1/3/0/5/130539432/6727408.pdf
    • http://pillargroundandtruthcogbf.org/uploads/1/3/1/4/131453853/xumevajubajadem_besebikofije.pdf
    • http://actclaims.net/uploads/1/3/0/4/130483527/togeza_rediwofoz_xofom_pelux.pdf
    • http://gottabethinagain.net/uploads/1/3/0/6/130620898/funoz-gidudapu.pdf
    • http://idasundell.se/uploads/1/3/0/5/130539465/movawapipasesom_zavumodos_xigumijapofir.pdf
    • http://univetshop.com/uploads/1/3/0/5/130589320/padixajisavopi-dogikulovof.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a74.bin
04b1c6947f7032a52b911e46f8e621232fc26e0ae3ef6394e25b760ff6e847fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A74 4888 bytes
font_01_sfnt_off00006b39.bin
92eaa0cf4a92080412c7bf2e543208f69d0383abcaed06c857d37b26d129c2b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B39 19624 bytes

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