Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8bf8688333c0217…

MALICIOUS

PDF

76.3 KB Created: 2021-03-17 23:44:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3982399cff26f07cb07cb14037e6227b SHA-1: e3b6407c973d706ef9ecb4a7b7e96a0072ffa853 SHA-256: e8bf8688333c02171cf92b4b40ee6539e5b90c46ce6da0acdf5f95815e0ee324
94 Risk Score

Malware Insights

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

The PDF file contains a suspicious external URI pointing to a URL that mimics a search result for a free PDF download. This, combined with ClamAV and ML classifier detections, strongly suggests a phishing or malware distribution attempt. The embedded URL is likely intended to redirect the user to a malicious download or exploit. No scripts were extracted, but the PDF structure and external URI are indicative of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5166

Heuristics 3

  • 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
  • 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://jacksth.ru/award?keyword=rannar+boi+in+bengali+pdf+free+download
    • http://topstudy.fun/4258962838yggyf.pdf
    • http://bupro.asia/cloud_security_alliance_certification_verificationw8ou5.pdf
    • http://kafidovomiguvo.mywebcommunity.org/xurosakotanapuku.pdf
    • http://lnstgramhelpcopyright.com/933111442355ahlg.pdf
    • https://cdn-cms.f-static.net/uploads/4485939/normal_6047b7eb32a19.pdf
    • http://bullbananavannaone.xyz/agar._io_mod_menu_apkcakmo.pdf
    • http://iuts.space/buripezuwepudogasusd9wbf.pdf
    • https://static.s123-cdn-static.com/uploads/4419441/normal_5fdefb268b079.pdf
    • https://cdn-cms.f-static.net/uploads/4459796/normal_603bdbabdae93.pdf
    • http://fogafiv.mypressonline.com/photoscape.x.pro.v2.4.1.x64__crack.rar.pdf
    • http://xunarepozufuz.mygamesonline.org/can_someone_see_my_browsing_history_from_another_computer.pdf
    • https://cdn-cms.f-static.net/uploads/4455196/normal_6028b2f432c4f.pdf
    • https://cdn.sqhk.co/porosobof/jdjcjgz/66081048261.pdf
    • https://static.s123-cdn-static.com/uploads/4464327/normal_5fe5b0a540f4f.pdf
    • https://cdn.sqhk.co/juvexafi/gg7qjiO/pepopanegijenesovibawomav.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/gurafoga/woruwanezakap.pdf
    • https://s3.amazonaws.com/pusolefosex/badshah_film_full_song.pdf
    • https://uploads.strikinglycdn.com/files/306a77bc-d113-4323-b33d-59535254b5a5/safety_first_car_seat_forward_facing_install.pdf
    • http://kopurelotalad.onlinewebshop.net/how_to_set_a_honeywell_thermostat_on_auto.pdf
    • https://s3.amazonaws.com/godewumazek/nigugurukiliwedufuvovipin.pdf
    • https://uploads.strikinglycdn.com/files/b52305f6-bc54-4291-99c2-e8e13f5b2fa7/kixulotewamuxaxivefuwi.pdf
    • https://uploads.strikinglycdn.com/files/62dc5ced-9647-4eb0-8dc6-ff2f0ab669a0/how_do_i_cancel_my_enercare_water_heater.pdf
    • https://s3.amazonaws.com/verirejon/siwewinaboxop.pdf
    • https://uploads.strikinglycdn.com/files/5b2323fe-20d3-4ec5-b2b8-b4b49f2d782c/how_to_paint_a_simple_winter_scene.pdf
    • https://uploads.strikinglycdn.com/files/5f26fb06-1793-4cba-bad9-cbfd0e4b3bc9/wifaf.pdf
    • https://s3.amazonaws.com/zalomi/85459672412.pdf
    • http://scripts.sil.org/OFL
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f087.bin
93256793f3fa8411ed7c9bc5b9c545fdbb9505db9d04d39dfb5fbfa925ac964a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF087 5268 bytes
font_01_sfnt_off00010294.bin
b3c0a537a2cfff192a3bf42f1126e8343dfbde8b42b411ab261ac84328678a5b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10294 13600 bytes