Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f5cba3f39cda053…

MALICIOUS

PDF

42.2 KB Created: 2020-03-08 09:19:18 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5ea9caab5cc8503c62a452b2db840d62 SHA-1: a9441b295372aeaf6d24bd6c83d4a034bd20dd42 SHA-256: 3f5cba3f39cda05355b32a7eb049b56e203374292b030be96993db0f5a5a6075
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO abuse tactic. The document body, though partially corrupted, contains references to 'Advocare slim and trim 28 lifestyle guide' and the wkhtmltopdf application, indicating a lure to external content. The primary heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is a malicious attempt to drive traffic to potentially harmful sites.

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://destinedtodelighttravel.voyagerwebsites.com/uploads/1/3/0/7/130739308/130739308.html#advocare+slim+and+trim+28+lifestyle+guide
    • http://womxnrise.com/uploads/1/3/0/7/130776415/304882.pdf
    • http://voyagescimatur.com/uploads/1/3/0/4/130435690/risiwisoxabod.pdf
    • http://www.seartiststudio.com/uploads/1/3/0/5/130550675/815e276f5a.pdf
    • http://smithscateringholbrook.com/uploads/1/3/0/3/130323384/dawirekisamava.pdf
    • http://luis-cunha.net/uploads/1/3/0/2/130287457/gidopivejevoz-vudejetoliteba-tosaweke-wajuvalipiguko.pdf
    • http://sam-miee.com/uploads/1/3/0/5/130550657/4982467.pdf
    • http://www.poppyandrose.co.uk/uploads/1/3/0/6/130604044/debisoni.pdf
    • http://thekarmaofbeinggay.com/uploads/1/3/0/7/130738662/accc1ba.pdf
    • http://newyorkhomeclick.com/uploads/1/3/0/6/130621351/faxejodusavenu_zikavorirumelox_liwajemopudi.pdf
    • http://cscgadvocacy.com/uploads/1/3/0/7/130775797/xisotonome-vorapatipev.pdf
    • http://ancienthand.net/uploads/1/3/0/5/130551351/1445450.pdf
    • http://www.e2tstore.com/uploads/1/3/0/6/130639782/zonajepa_xeludagik_tijojuti.pdf
    • http://www.sapphiretravelscapes.com/uploads/1/3/0/2/130291527/9110362.pdf
    • http://visitcaddogap.org/uploads/1/3/0/5/130551363/tikivazujupabaleka.pdf
    • http://desrochersculpturestudio.com/uploads/1/3/0/6/130604022/fezavilofadoxop.pdf
    • http://origins-explore.net/uploads/1/3/0/5/130551206/5355596.pdf
    • http://craftchampion.com/uploads/1/3/0/4/130476880/nisawubafukup.pdf
    • http://pcbaugh.com/uploads/1/3/0/5/130540286/8041137.pdf
    • http://trash2class.com/uploads/1/3/0/6/130603789/zugoma.pdf
    • http://mail.avian.dk/uploads/1/3/0/2/130272396/4a74ce9b29b16a5.pdf
    • http://hostmaster.erincullimore.com/uploads/1/3/0/4/130475989/gonesenudebi.pdf
    • http://varliakademi.com/uploads/1/3/0/3/130379803/favalotex_novur_fonofosasabakud_turuwegesobujo.pdf
    • http://www.theunwindingway.co/uploads/1/3/0/5/130550854/miwewatovaxe-kakoteguj.pdf
    • http://www.theunwindingway.co/uplo
    • 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_off00006674.bin
5b65e719b4e589b1d529b70021d8c498b9833cf5313293ac726e70ea8d4e732c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6674 7932 bytes
font_01_sfnt_off0000854a.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x854A 16204 bytes

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