Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bbb1da06bb3677e…

MALICIOUS

PDF

44.8 KB Created: 2020-04-03 04:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4ee264207b04c6f32bd2d58c07e87fd5 SHA-1: addb40b8dea3ef96de3eb08f4911497cdcbec377 SHA-256: 3bbb1da06bb3677e6e4b88ff64735ae60a38ab446e941f5956fa56005fb406c0
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, many of which point to other PDF files hosted on similar domains. This suggests a link farm or SEO manipulation tactic. One of the embedded URLs, http://goldengatelanding.com/uploads/1/3/0/2/130291355/130291355.html#ejemplos+de+oraciones+con+adverbios+de+afirmacion+en+ingles, is directly referenced in the document body, indicating a potential lure for users to click through to malicious content. No scripts were extracted, and the primary malicious activity appears to be the distribution of numerous links.

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://goldengatelanding.com/uploads/1/3/0/2/130291355/130291355.html#ejemplos+de+oraciones+con+adverbios+de+afirmacion+en+ingles
    • http://leannegilardi.com/uploads/1/3/1/4/131410007/7610198.pdf
    • http://mkmastenbrook.com/uploads/1/3/0/6/130604888/rawopesiriw.pdf
    • http://casadelbuentratohovde.org/uploads/1/3/0/2/130272585/laguzebul_zeran_mawetulafuzivi_nobovoxes.pdf
    • http://larstangen.us/uploads/1/3/0/6/130621746/6038152.pdf
    • http://hillmusic.net/uploads/1/3/0/6/130621148/6098198.pdf
    • http://gentletouchdelivery.com/uploads/1/3/0/5/130588754/e824e.pdf
    • http://mercyscleaningservices.com/uploads/1/3/0/5/130539341/9237026.pdf
    • http://k9capersrct.com/uploads/1/3/0/8/130874432/6717741.pdf
    • http://hhscvte.org/uploads/1/3/0/7/130740530/jawetasobin-kuzunix-najebak.pdf
    • http://damngoodgolf.com/uploads/1/3/0/5/130545421/lorusukozizarozes.pdf
    • http://amvadvies.com/uploads/1/3/0/8/130814763/a31b53.pdf
    • http://zahnallianz.biz/uploads/1/3/0/7/130776042/1452352.pdf
    • http://blackwinghunting.com/uploads/1/3/0/8/130813965/jujopasozanebuzev.pdf
    • http://lawrenceprestonmusic.com/uploads/1/3/0/4/130488734/4e7a4b427d8.pdf
    • http://eevee-teahouse.com/uploads/1/3/0/6/130640040/misowibokap.pdf
    • http://uni-scale.com/uploads/1/3/0/4/130436242/bujom.pdf
    • http://saltydeepblue.com/uploads/1/3/0/5/130588839/fuvufudozujegawax.pdf
    • http://eplaccounting.net/uploads/1/3/0/5/130539090/461a2879c4.pdf
    • http://wunderkammer.space/uploads/1/3/0/7/130740183/761024a5016fd.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_off000082e4.bin
ab08c08f194caba9bf8ae90b234e5072786f5f4b5e90ea24adfeaea566a18d5b
pdf-font-stream PDF embedded font (sfnt) at offset 0x82E4 8912 bytes