Malicious PDF — malware analysis report

Static analysis result for SHA-256 551feff532fccbe9…

MALICIOUS

PDF

38.3 KB Created: 2020-03-24 21:39:33 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 95923cde3f9659fee76f597c1ab797eb SHA-1: c2f1ddbe5141acf07f34aecc742317cf7adeffca SHA-256: 551feff532fccbe963a95dfc89c7a2b22bfbdc5c2042059dbaa8b645fe40c3e6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. This pattern is indicative of SEO spam or a distribution mechanism for further malicious content. The document body text, while partially garbled, includes a URL that appears to be the primary lure. 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://sweetyoungster.com/uploads/1/3/1/1/131164538/131164538.html#letra+cursiva+pontilhada+baixar
    • http://swillpower.com/uploads/1/3/0/6/130604312/9c98e7751.pdf
    • http://183palatine.com/uploads/1/3/0/5/130543320/4523097.pdf
    • http://www.championsworship.org/uploads/1/3/0/7/130739962/bekoxumulororumupigu.pdf
    • http://sethc.net/uploads/1/3/0/9/130968917/b971ed1482adbcd.pdf
    • http://conductameeting.com/uploads/1/3/0/7/130775383/vazopadiv.pdf
    • http://www.alseproject.com/uploads/1/3/1/0/131070508/putapawavepig.pdf
    • http://jazzyscrubsandmore.com/uploads/1/3/0/9/130969012/46479bb15250cf.pdf
    • http://shoess530.com/uploads/1/3/0/6/130640047/gizujipagofagaz-guxis-fulemiranububin-lidonaperaf.pdf
    • http://www.photobycara.com/uploads/1/3/0/3/130323237/9493503.pdf
    • http://funnyfarmhomestead.com/uploads/1/3/0/8/130813582/e54a91af597f6d.pdf
    • http://www.civilian.lsbrpc.net/uploads/1/3/0/6/130621215/medizinuneremolarox.pdf
    • http://detailsdone.com/uploads/1/3/0/5/130543240/136263737c22.pdf
    • http://rssailing.org.au/uploads/1/3/0/6/130640194/xanodijoke.pdf
    • http://daviscandleco.com/uploads/1/3/0/5/130543640/55bee4516.pdf
    • http://mta-sts.mail.lindaseward.com/uploads/1/3/0/7/130775987/d7861c56bb7e8d.pdf
    • http://tealporrini.com/uploads/1/3/0/3/130379928/ligokesuwovabozu.pdf
    • http://alloexo.studio/uploads/1/3/0/8/130813972/karovavegazirodalema.pdf
    • http://www.yourmichiganlandscaper.com/uploads/1/3/0/7/130740069/9908209.pdf
    • http://pacificnwevents.com/uploads/1/3/0/5/130539446/2062079.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_off000067b8.bin
7d90b64ee7f0a6582ea9cbae9e49e6a3953405d7cc96c9da41a26970464f0d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B8 10028 bytes

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