Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c34d3c42a07a74…

MALICIOUS

PDF

38.2 KB Created: 2020-03-31 19:35:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5a9190be83dd608fdfc1635a693fe6f7 SHA-1: 974b9644d7a24ca6dc1a0e3821a39e3a54db6471 SHA-256: 88c34d3c42a07a749bad87308cb43a0f26da2ecc400cdd2e51010680ad085dd5
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, many of which point to other PDF files hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a link farm, suggesting a tactic to manipulate search engine results or distribute traffic. The primary URL http://thehappygirlstore.com/uploads/1/3/0/7/130740128/130740128.html#el+metodo+kaizen+libro is also present, further supporting the link farm attack pattern. No scripts were extracted, limiting the analysis of direct payload delivery.

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://thehappygirlstore.com/uploads/1/3/0/7/130740128/130740128.html#el+metodo+kaizen+libro
    • http://hgoadventure.com/uploads/1/3/0/5/130590297/xijukivadefufuruz.pdf
    • http://delanfort.com/uploads/1/3/0/5/130550858/zaganipefudixaz.pdf
    • http://southfieldplumbing.org/uploads/1/3/1/3/131398477/330aac5.pdf
    • http://wheretocut.com/uploads/1/3/0/8/130874379/jidujab.pdf
    • http://dreminphotography.com/uploads/1/3/0/8/130813511/9f2169.pdf
    • http://bastion.co.nz/uploads/1/3/0/6/130620800/sozovipu_zadaweja_fedifoge.pdf
    • http://allnationsinsurance.org/uploads/1/3/0/6/130621123/fuwuk.pdf
    • http://entergysolarschools.com/uploads/1/3/0/6/130604645/lonaseki_zakowin.pdf
    • http://lorenajp.com/uploads/1/3/0/7/130738790/550c3.pdf
    • http://raisintheblues.org/uploads/1/3/0/5/130550814/xaxadogivataba.pdf
    • http://boydmetal.com/uploads/1/3/0/7/130775376/lurigevuxodepupun.pdf
    • http://obsech.com/uploads/1/3/0/5/130589413/5469605.pdf
    • http://wedding-violin.com/uploads/1/3/0/2/130287894/poduxerabadiriv-matipoduzugi-gikamovoxufo-wuzikokud.pdf
    • http://shoproyaltywear.com/uploads/1/3/1/3/131398517/641616.pdf
    • http://hangonandfly.com/uploads/1/3/1/4/131454634/furivapafez.pdf
    • http://littlerocktaxiservice.com/uploads/1/3/0/4/130476672/vizewimerivan.pdf
    • http://rmjadmso.com/uploads/1/3/0/5/130588543/talativa.pdf
    • http://hoactrainer.com/uploads/1/3/0/8/130874378/9539224.pdf
    • http://giftedhandshairstudio.com/uploads/1/3/0/5/130589165/13419ba2da.pdf
    • http://envolvecollective.com/uploads/1/3/0/7/130740590/c9fb9d433cdf5.pdf
    • http://danamarvel.com/uploads/1/3/0/5/130588428/1753149466d8d34.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_off00006a31.bin
960ff0b5252701bb4fb61cfab2adf1b30683817031122c3d6dd0817469fce5f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A31 8764 bytes

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