Malicious PDF — malware analysis report

Static analysis result for SHA-256 856a5d23ac45e1f3…

MALICIOUS

PDF

38.5 KB Created: 2020-03-19 05:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6447e9c4652000a47c95724ef9d98dcd SHA-1: 758babf9bd709941b9ed2ddf00d74d9ed6b7eb91 SHA-256: 856a5d23ac45e1f3afb7cfc07a423d05aa537c10ad76adbea882dcdd9160f2a6
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains text related to 'Interpretacion test arbol casa persona' and mentions the authoring application 'wkhtmltopdf', suggesting it may be part of a link farm or SEO manipulation scheme. The primary purpose appears to be directing users to a multitude of other PDF documents hosted on various domains, potentially to distribute malware or engage in other malicious activities.

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://johnsonandsonsservices.com/uploads/1/3/0/7/130776273/130776273.html#interpretacion+test+arbol+casa+persona
    • http://michaelericksonteach.com/uploads/1/3/0/6/130604074/botosuvoroniwimaw.pdf
    • http://mail.actonfellowship.madesimplydev.com/uploads/1/3/0/2/130271219/9813df21ea65.pdf
    • http://www.ttwinsmusik.com/uploads/1/3/0/2/130287965/komov.pdf
    • http://desingsbyaylene.com/uploads/1/3/0/5/130540458/9271517.pdf
    • http://davidra.net/uploads/1/3/0/6/130604637/4ba67380dd8ba.pdf
    • http://localsidehustle.org/uploads/1/3/0/7/130774977/1028b0240.pdf
    • http://www.smartwaystrainingandcoaching.com/uploads/1/3/0/4/130489776/7795581.pdf
    • http://celticcellar.com/uploads/1/3/1/0/131070645/nirulimadelizeto.pdf
    • http://edgewaterglenhomes.com/uploads/1/3/0/2/130271046/xiwifomedotu_neveneku_vefit.pdf
    • http://theacademypreschool325.com/uploads/1/3/0/8/130815664/piwuzevekepagevafuge.pdf
    • http://www.pleasantrental.com/uploads/1/3/0/7/130776474/jikapevogenonasu.pdf
    • http://onestaaviary.com/uploads/1/3/0/2/130287919/xurewodamedebatijix.pdf
    • http://stemsstyle.com/uploads/1/3/0/6/130620719/detirenete-kezevivoja.pdf
    • http://mylastduchess.net/uploads/1/3/0/4/130488157/a6eb5251da0ed1.pdf
    • http://aeasynergy.com/uploads/1/3/0/7/130776812/7556620.pdf
    • http://stadtentdecker-in.de/uploads/1/3/0/5/130588169/sebolafarakofanipelo.pdf
    • http://kiemtratenmien.net/uploads/1/3/0/7/130739817/6239165.pdf
    • http://artyshow.net/uploads/1/3/0/6/130639757/8d02d5a88f0c161.pdf
    • http://zemgear.com/uploads/1/3/0/5/130540583/raremaxu_puxifidezonum_sitidedep_pakidobuf.pdf
    • http://t3culinary.net/uploads/1/3/0/5/130589058/3344189.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_off00006f15.bin
8357ba0fae164d8dffebf89d46b0f0de35b8656e0bbd9f9e08d017063b0cf8c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F15 7396 bytes

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