Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9285cc301e89108…

MALICIOUS

PDF

71.2 KB Created: 2021-03-22 00:52:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 920c829386a27f23ec5ee2953c89f560 SHA-1: d6975523aa80591886127d805e5dff742e27afb5 SHA-256: f9285cc301e89108babf9b74718eed6454eb8aba21e8c8c77d247396707ab2db
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating the presence of external URIs and embedded URLs, with a primary URL identified as malicious. The ML classifier and ClamAV detection strongly suggest malicious intent, likely a phishing attempt to redirect users to a site disguised as a school bell schedule. No scripts were extracted, but the presence of malicious URLs points to a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://midufefew.ru/wix?keyword=north+fremont+high+school+bell+schedule
    • https://static.s123-cdn-static.com/uploads/4467589/normal_5fc6752356454.pdf
    • http://floradoma.net/tilowifiretikujaliacw0w.pdf
    • http://opensol.xyz/what_is_the_value_of_a_2013_dodge_caravan8yu5l.pdf
    • https://static.s123-cdn-static.com/uploads/4476758/normal_5fee9a3f75f84.pdf
    • http://carbackseat.site/18434497732uoa2o.pdf
    • https://cdn.sqhk.co/gusiloxi/9giiaib/why_were_the_great_pyramids_of_egypt_built.pdf
    • https://setowunujabid.weebly.com/uploads/1/3/4/0/134095848/4442434.pdf
    • https://cdn-cms.f-static.net/uploads/4420764/normal_5fd22aca0e8ea.pdf
    • https://cdn-cms.f-static.net/uploads/4404523/normal_603fe668af863.pdf
    • https://cdn.sqhk.co/nisugewameru/5gdHuyo/87795330521.pdf
    • http://sale20.site/lefaninazas1y5li.pdf
    • https://gugivubur.weebly.com/uploads/1/3/4/3/134390132/wonewumamudem-jelalazebewifip-viruxofudoxuje-juzizok.pdf
    • https://rogapasutidubu.weebly.com/uploads/1/3/1/4/131438129/8867628.pdf
    • http://roskycnmx.com/ck2_agot_tame_dragon_event68uvp.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7347fce7-ba73-417a-86df-a631af828698/try_something_new_for_30_days_-_matt_cutts_script.pdf
    • https://d128792e-e0a8-46e0-98ed-b941f5da69b2.filesusr.com/ugd/b98abb_17d7d2886e704fd1996f427a7515c8f4.pdf?index=true
    • https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_16890a3e58304926a9c02575f1533610.pdf?index=true
    • https://85377554-d84f-42a6-a955-c87f7d5d3d8c.filesusr.com/ugd/dd4472_2df3d0935ffc4732accd27bcbb65014b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e9cce695-bfe7-46c1-8b0c-d1eedc53ad4b/how_much_does_it_cost_to_ship_a_pallet.pdf
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_d878b2315801483aa3bf8ed1ddfed825.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5b2cfc31-5fcb-448b-98db-fa257f185e6b/72204983180.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dad9.bin
56a4e850c17c9af4440d60cc444890eb7d7f0a5f16ec4abdeebee722f4d5b560		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD9 5336 bytes
font_01_sfnt_off0000ecdf.bin
fb12a3954a8ed6e3f7e4511653ad9f351e2a8fe643fb2e28973921cf74a4217f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECDF 10132 bytes

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