Malicious PDF — malware analysis report

Static analysis result for SHA-256 da22cac88859f94a…

MALICIOUS

PDF

56.2 KB Created: 2020-03-29 01:43:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6e459dbfebb2e183d9a7ab6921d063dc SHA-1: 41c0972abf1c04a78d301b10e649b95361d9d476 SHA-256: da22cac88859f94a9586adf9ed6828f1c595d6ecc038ee3eed7c143754eeb6de
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 with numeric or generic slugs. This pattern is indicative of a link farm or SEO poisoning technique, designed to lure unsuspecting users to potentially malicious content. The primary URL found in the document body, http://waterfronthotel.devsite-1.com/uploads/1/3/0/5/130544702/130544702.html#funciones+irracionales+dominio+rango+y+grafica, appears to be the entry point into this network of linked documents. No scripts were extracted, and the document body itself is largely unreadable, making it difficult to determine the exact final payload.

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://waterfronthotel.devsite-1.com/uploads/1/3/0/5/130544702/130544702.html#funciones+irracionales+dominio+rango+y+grafica
    • http://mcbcyork.org/uploads/1/3/0/5/130590463/6d9923a90ae4.pdf
    • http://smoth.apkroad.com/uploads/1/3/0/8/130813837/2181953.pdf
    • http://ourgreenlittlevillage.com/uploads/1/3/0/7/130774999/ziduguzelafexa.pdf
    • http://ns.sunatm.com/uploads/1/3/0/8/130874127/7877361.pdf
    • http://www.gfiteducation.com/uploads/1/3/0/2/130288854/da055f.pdf
    • http://richardsnashall.net/uploads/1/3/0/8/130813696/gobopigurilu_noxuligepo_givefusuguwiweb_demivokulakas.pdf
    • http://www.lilyandodin.com/uploads/1/3/0/5/130589261/6d28725219ed2da.pdf
    • http://www.absoluteperfectionsalon.net/uploads/1/3/0/6/130639580/tofugifukomizipumu.pdf
    • http://ilivexperience.org/uploads/1/3/0/6/130605075/zejimima_laramodumolibu_sejuno_zerudosep.pdf
    • http://southbeachfishandchips.com.au/uploads/1/3/0/8/130874333/sadizux_zomupisa.pdf
    • http://chayilcandles.com/uploads/1/3/0/6/130639481/66bc95e4eee6f.pdf
    • http://urbsight.com/uploads/1/3/0/6/130639517/1195888.pdf
    • http://analyticinsights.org/uploads/1/3/0/6/130621958/8880850.pdf
    • http://missflannery.com/uploads/1/3/1/1/131163788/3373095.pdf
    • http://fashion-rehab.net/uploads/1/3/1/0/131069869/dixelu.pdf
    • http://arete-managementsolutions.com/uploads/1/3/0/2/130273791/medip.pdf
    • http://mx.reinventing-reality.com/uploads/1/3/0/4/130491356/fenaw_fojonukadar_gavolabeb.pdf
    • http://assessmentsystemscorporation.com/uploads/1/3/0/3/130379074/busizezuwalap-jobebaf.pdf
    • http://www.ignitepayments-network.com/uploads/1/3/0/2/130289478/1453571.pdf
    • http://mangosutra.net/uploads/1/3/0/6/130605017/dujabim_suzad_dukipekasebori_rulonak.pdf
    • http://8212hawaii.com/uploads/1/3/0/4/130436519/sofozidufofu-wazadidef-vejigezobigu-debatulibilu.pdf
    • http://tronstore.org/uploads/1/3/0/6/130603809/786e09850e01ccd.pdf
    • http://tacosfromtijuana.com/uploads/1/3/0/5/130546196/kitabijebibime_vojowu_tumano.pdf
    • http://www.brintonappraisalclasses.com/uploads/1/3/0/4/130483480/8230690.pdf
    • http://tronstore.org/uploads/1/3/0/6/1306038
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000908a.bin
b69750680463c6e9f69025887ad3b8608070f732d86fbfe7d0960d3cbd7fed3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x908A 10004 bytes
font_01_sfnt_off0000b4d1.bin
3bf85bbcec4765e553d3a8af14b71ad60ab83533606c6cc4c456ae76d3cf21e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4D1 1392 bytes
font_02_sfnt_off0000bc72.bin
043f89cdc56a6d687dbde9ca708df5d68a479f0504edd5c2f1c61766139dec50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC72 10532 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.