Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1a7fe07d05d7a7…

MALICIOUS

PDF

74.3 KB Created: 2021-03-18 09:45:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a87890f878311b41f232fdc133ba213e SHA-1: 644fb86db0e079e197d7a7695a87810768f2d4e1 SHA-256: 2e1a7fe07d05d7a7b785b53d8cd13b4d64460f8c73242590c5898a9cc301bbc2
94 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a heuristic indicating an external URI. The embedded URL, https://ponafet.ru/strik?utm_term=cazadores+de+sombras+ciudad+de+hueso+libro+rese%25C3%25B1a, suggests a phishing attempt disguised as content related to a book review. No scripts were extracted, but the presence of a malicious URL and the document's nature strongly indicate a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5347

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://ponafet.ru/strik?utm_term=cazadores+de+sombras+ciudad+de+hueso+libro+rese%25C3%25B1a
    • https://static.s123-cdn-static.com/uploads/4369161/normal_600967e128f52.pdf
    • http://nubuxeki.scienceontheweb.net/78121543914.pdf
    • https://cdn-cms.f-static.net/uploads/4414678/normal_6022c9df8b914.pdf
    • https://cdn-cms.f-static.net/uploads/4455390/normal_603808d330c64.pdf
    • http://pemutoguxo.66ghz.com/fomumas.pdf
    • https://cdn-cms.f-static.net/uploads/4426813/normal_602fe0cdb4b68.pdf
    • http://nizavevorupuj.mywebcommunity.org/how_to_sketch_a_rose_easy.pdf
    • http://ravigimojamel.mypressonline.com/cg_police_syllabus_2020_download.pdf
    • https://cdn-cms.f-static.net/uploads/4417037/normal_601d6200a91f7.pdf
    • https://lilonukile.weebly.com/uploads/1/3/4/7/134767916/mosupeseka.pdf
    • https://cdn-cms.f-static.net/uploads/4394079/normal_601324120706b.pdf
    • https://fukobararusi.weebly.com/uploads/1/3/4/4/134404541/suziwodus.pdf
    • https://static.s123-cdn-static.com/uploads/4445337/normal_5ffd3b7f0ee90.pdf
    • https://jelebemurufipo.weebly.com/uploads/1/3/4/4/134442628/5464799.pdf
    • https://cdn-cms.f-static.net/uploads/4386333/normal_6039de1a57f97.pdf
    • https://vadutebo.weebly.com/uploads/1/3/4/8/134889136/revesovut.pdf
    • https://cdn-cms.f-static.net/uploads/4416326/normal_602b994cc0222.pdf
    • http://povulofi.mywebcommunity.org/99011386108.pdf
    • https://tirotirow.weebly.com/uploads/1/3/1/3/131380420/6b3bd8f0d778422.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wilaroxu.atwebpages.com/humminbird_fish_finder_speed_sensor.pdf
    • http://xofiketur.rf.gd/79604062958.pdf
    • https://uploads.strikinglycdn.com/files/672f4531-64e1-403c-a86f-3873a0df58ed/votuwexokaxeru.pdf
    • https://uploads.strikinglycdn.com/files/6bf31912-9f00-4388-a4e3-655f207a690c/should_student_body_president_be_capitalized.pdf
    • http://wafugid.epizy.com/the_oresteia_eumenides.pdf
    • https://uploads.strikinglycdn.com/files/6682dc1b-2f49-4e19-9046-fb998b4c3636/how_to_use_lg_top_load_fully_automatic_washing_machine.pdf
    • https://uploads.strikinglycdn.com/files/33c76351-092c-4647-b40f-03f27977b4b0/wutojotavisosakevigetelul.pdf
    • http://musubokem.rf.gd/zadaviwiriroribesuwel.pdf
    • http://nupuzasig.epizy.com/basement_car_park_design_guide.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc67.bin
e2dfa145075a81bbf5e7fa9fbd579567ea723eaefe9ab713635787e049f1da51
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC67 5488 bytes