Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0434f669180715a…

MALICIOUS

PDF

78.4 KB Created: 2020-04-02 10:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 41feddb054788edb6ad9e38485ab4d0c SHA-1: f31aa336b3474b6b4724500f728ee14d8e6d059f SHA-256: f0434f669180715a26854b5d8e7f2b6c57d85cebd4f2ef6c2fe681b19738061b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, contains a lure related to downloading media content. The primary URL found in the document body is http://worldclasssurffoundation.org/uploads/1/3/0/4/130476114/130476114.html#descargar+caballeros+del+zodiaco+capitulos+completos+en+espa%C3%B1ol+espa%C3%B1a. This suggests a link-farming or traffic-driving attack pattern.

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://worldclasssurffoundation.org/uploads/1/3/0/4/130476114/130476114.html#descargar+caballeros+del+zodiaco+capitulos+completos+en+espa%C3%B1ol+espa%C3%B1a
    • http://daveandgwen.com/uploads/1/3/1/3/131398171/9144404.pdf
    • http://kidsgymberkeley.shop/uploads/1/3/0/6/130639162/085e81fd249.pdf
    • http://wabashtees.com/uploads/1/3/0/7/130740110/kitonogenudi.pdf
    • http://secrettreasuresuk.com/uploads/1/3/0/6/130639291/069b0b.pdf
    • http://tau.gent/uploads/1/3/0/6/130604473/suveji-wogasatomavaxi-pamumikuwurofel.pdf
    • http://myconcealedcarry.net/uploads/1/3/0/6/130605206/xidezux-gajememegagenug-gowuzud.pdf
    • http://lance-ufrj.org/uploads/1/3/0/6/130604547/mafunobomojibedaxax.pdf
    • http://patricktoole.com/uploads/1/3/0/5/130590096/b48bf38ca36f5.pdf
    • http://headhuntertaxidermynw.com/uploads/1/3/1/1/131163658/7473825.pdf
    • http://bucknertrucking.com/uploads/1/3/0/7/130775350/digumu.pdf
    • http://balance-through-nature.com/uploads/1/3/0/7/130738711/xurotiwurij.pdf
    • http://drsacrawfordcancerresearch.org/uploads/1/3/0/5/130590637/56da00d5f36e.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_off0000d200.bin
e32da9c875b74b9e8ca52d6e023fd1399694d035c305379034f3c47a5870b9d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD200 10128 bytes
font_01_sfnt_off0000f519.bin
863378d693e0097269b46f6e873e1bf10f9baedf1fdd7f5194bb46f3f7289bc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF519 16088 bytes

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