Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63cca6c4d9ad28b…

MALICIOUS

PDF

85.6 KB Created: 2021-03-18 19:07:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc24ca795b0442694141eae448a09081 SHA-1: d24faf22f32f377c2228424d2d9a4257041d9d70 SHA-256: e63cca6c4d9ad28bc2d35b0b2edc97cd989f1dd27f97fb3342fe1e51e293d931
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended to trick users into downloading further malicious content. ClamAV detection and ML classification strongly indicate malicious intent, specifically phishing. No scripts were extracted, but the presence of an external URI suggests a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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
  • 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://nipisod.ru/award?keyword=enneagram+personality+types+pdf
    • https://cdn.sqhk.co/bebomopakax/zOhcFh1/herobrine_skins_skin_bobby_bobby1545.pdf
    • https://cdn.sqhk.co/todiwapubu/fibKfs2/xanolepi.pdf
    • https://cdn.sqhk.co/wozejodes/uiehhH7/34999388086.pdf
    • http://selozufuwadapuw.66ghz.com/13122890830.pdf
    • https://cdn-cms.f-static.net/uploads/4478146/normal_5fd160ae0c9a7.pdf
    • http://pimebujeben.66ghz.com/pabufakuxewo.pdf
    • https://cdn-cms.f-static.net/uploads/4379491/normal_600b65d195a85.pdf
    • https://cdn-cms.f-static.net/uploads/4412151/normal_60160d7dab7cc.pdf
    • https://cdn.sqhk.co/kitaparek/icSha5r/8035147407.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/168c1367-7b3d-4ed6-855b-2175085d2d56/dewalt_dwx723_heavy_duty_miter_saw_stand_parts.pdf
    • http://luselobek.epizy.com/paladin_leveling_guide_p99.pdf
    • https://uploads.strikinglycdn.com/files/0bb40d88-c55e-4ce6-a252-b431e5f5dba8/24669876273.pdf
    • http://varewokumozikon.rf.gd/womazune.pdf
    • https://uploads.strikinglycdn.com/files/da211d39-3f57-4624-8c85-4a607dd9336f/the_chronicles_of_narnia_prince_caspian_full_movie_netflix.pdf
    • https://s3.amazonaws.com/gujutavevive/89905267170.pdf
    • https://uploads.strikinglycdn.com/files/779ade20-d88a-4e74-9a62-216550c4778a/1996_club_car_ds_parts_list.pdf
    • https://s3.amazonaws.com/pasawe/negafuvakewexawojitilewu.pdf
    • https://uploads.strikinglycdn.com/files/cab2a4c0-4b05-423f-a8e8-b429ef54292a/subaru_forester_2.5_xt_turbo_2018.pdf
    • http://modiwina.epizy.com/discrete-event_system_simulation_5th_edition.pdf
    • https://19004eff-8f5e-45b0-b15a-9fbdbd99e39d.filesusr.com/ugd/578ea4_2c83317c005d4a96b28674f973fe35a6.pdf?index=true
    • https://s3.amazonaws.com/tesotiwapax/96366069123.pdf
    • https://s3.amazonaws.com/widiku/sumodidokuwup.pdf
    • https://d62ff7d9-aefc-4ab8-8cdf-af38868aea16.filesusr.com/ugd/54b9a1_2460239c32064126a864abaf0e591470.pdf?index=true
    • 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_off00010dd3.bin
91dfcd0c1d9626f2605e1e38d584e110c82df638d71e309975a08814e0da40b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DD3 5420 bytes
font_01_sfnt_off0001203b.bin
857675d4069c75796af64295b5c7dbd73e22daedf61237659fc59421fd8a8084
pdf-font-stream PDF embedded font (sfnt) at offset 0x1203B 12408 bytes