Malicious PDF — malware analysis report

Static analysis result for SHA-256 9804cfb95818a53c…

MALICIOUS

PDF

29.7 KB Created: 2020-04-20 16:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7d1104b733fbecf998d0f78229ca2ac2 SHA-1: 81b7cf2bf75a14fc718a931e33134a18f9cb04ef SHA-256: 9804cfb95818a53c0062960a27189439f81754bc2f5250688d5f85de2deb3743
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to various domains, identified by the PDF_SEO_LINK_FARM heuristic. The document body mentions 'Avery templates for word 5366', suggesting a lure for users seeking document templates. The primary attack pattern involves directing users to a network of linked PDF files, likely for SEO spam or to host further malicious content. No scripts were extracted from this sample.

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://clwtrio.com/uploads/1/3/0/4/130435986/130435986.html#avery+templates+for+word+5366
    • http://howgills.net/uploads/1/3/1/1/131163838/8002618.pdf
    • http://etypemusic.com/uploads/1/3/0/5/130539034/fojugisebazefalezu.pdf
    • http://billsviolinrepair.com/uploads/1/3/0/5/130544257/lupomufufag.pdf
    • http://eloragirlpower.com/uploads/1/3/0/4/130483745/fizojemin-nululilapet.pdf
    • http://ourportfolioservices.com/uploads/1/3/0/5/130540211/dizudomom.pdf
    • http://reginacalvillo.com/uploads/1/3/0/5/130588512/tejedo-digukanona-ronegixo-begolusugodes.pdf
    • http://dogwood-grooming.com/uploads/1/3/0/8/130813903/xezitezadamosa-figut-tusuxaxop.pdf
    • http://edemtec.com/uploads/1/3/1/3/131384635/3698005.pdf
    • http://oakcreekcenter.org/uploads/1/3/0/9/130968981/1401317.pdf
    • http://pilatessolutions.net/uploads/1/3/0/4/130477351/noxemufewub.pdf
    • http://realspainalbania.com/uploads/1/3/1/4/131408465/ridixixotaj_tebukixevowol_rugovi_mepigepixu.pdf
    • http://itsapartycleveland.com/uploads/1/3/0/7/130776684/3b3012785579.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_off00004ed0.bin
94d1d0ab2b32c41ed41cebd227b3aa94624f447af4d2063acc5d7e09d9c9d45e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED0 6992 bytes

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