Malicious PDF — malware analysis report

Static analysis result for SHA-256 88fa80d989587e30…

MALICIOUS

PDF

35.1 KB Created: 2020-06-04 06:22:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5539bc513ac9df27d202be9a86867a2c SHA-1: 644e504197e2d7b127821572b917d1dcccc5854c SHA-256: 88fa80d989587e30e4ef48bf81aafe2ed6ca1d0f652f37d5d44ec49293ccf243
62 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, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, also contains URLs. These links likely lead to malicious websites or are part of an SEO spam campaign. No scripts were extracted from this sample, limiting further analysis of its behavior.

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://allqualityfood.com/uploads/1/3/0/4/130476661/130476661.html#autoridad+de+energia+electrica+barranquitas
    • http://newalbanydistrict.org/uploads/1/3/0/4/130476575/mabapoz.pdf
    • http://alanpliuart.com/uploads/1/3/0/5/130550667/2e9d42f8fe68be5.pdf
    • http://earthworkzseptic.com/uploads/1/3/1/6/131637686/fowidijepoxu.pdf
    • http://denniseasterfineart.com/uploads/1/3/1/4/131408397/suvuwimodu_bamagerijive_damebuvidowu_tibita.pdf
    • http://stonefloors1.com/uploads/1/3/0/2/130289561/845fdfbc.pdf
    • http://mx.faridtawa.com/uploads/1/3/0/2/130287419/juwivuledakikejapa.pdf
    • http://gobigt.com/uploads/1/3/1/6/131606546/rubid.pdf
    • http://utalii.com.au/uploads/1/3/0/2/130291908/1534785.pdf
    • http://hostmaster.timanderson.eu/uploads/1/3/0/5/130588843/521341.pdf
    • http://allqualityfood.com/uploads/1/3/0/4/130476661/terms.html
    • http://allqualityfood.com/uploads/1/3/0/4/130476661/dmca.html
    • http://allqualityfood.com/uploads/1/3/0/4/130476661/policy.html
    • https://wagudonanako.files.wordpress.com/2020/06/zuwofizazoj.pdf
    • https://lumexewo.files.wordpress.com/2020/06/3591448775.pdf
    • https://nabelijun.files.wordpress.com/2020/06/99985505635.pdf
    • https://xudoliposi.files.wordpress.com/2020/06/30746408210.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_off00005af6.bin
45a43b498da3abe88a4dfeab23f3d48ad294da303a622dd7ccaae26c1a602cdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF6 11516 bytes

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