Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49e87703f3a24ae…

MALICIOUS

PDF

69.5 KB Created: 2021-03-28 01:01:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fce8d8583552b0e5d8f3a2ac6d50e5cf SHA-1: 1614d5e13f0f89042ad97bf508c6ebbe1081237b SHA-256: e49e87703f3a24aeeaaa44f09744796e58ff82d3edb91ec31d3b0e2f730edff4
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to a suspicious domain, which is a strong indicator of phishing or malware distribution. ClamAV and ML classifiers also flagged this PDF as malicious. The document body, though heavily obfuscated, appears to reference a game, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/wix?keyword=sift+heads+world+act+4+hacked+unblocked
    • http://bcpzonasegur4viabcp.com/how_to_play_the_harmonica_free_willye7swk.pdf
    • https://cdn-cms.f-static.net/uploads/4380086/normal_5fd9bb1052958.pdf
    • http://astrology-personal.online/audiosurf_2_free_fullq1r99.pdf
    • https://cdn-cms.f-static.net/uploads/4486220/normal_60144895081cf.pdf
    • http://microbladingcertificationdfw.org/nene_ambani_movie_audio_songs6ldaf.pdf
    • http://bullbananavannaone.xyz/adobe_colour_ccfa76f.pdf
    • http://repair-foto.ru/647231482301lp4e.pdf
    • https://cdn.sqhk.co/tujarazimok/YuhhgeO/soapstone_incense_burner_tower.pdf
    • https://cdn-cms.f-static.net/uploads/4486521/normal_604d82a78036f.pdf
    • https://cdn.sqhk.co/sugezigo/jHgcj4h/skull_tower_castle_defence_mod_apk_download.pdf
    • https://cdn.sqhk.co/lajefage/ifcjgie/58222845985.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kesumasaka/etched_in_sand_study_guide.pdf
    • https://s3.amazonaws.com/bofake/arthritis_and_rheumatology_journal_guidelines.pdf
    • https://s3.amazonaws.com/muvarelo/public_holiday_2019_singapore.pdf
    • https://uploads.strikinglycdn.com/files/07c07237-c1f4-47fe-b9b6-18734ae320e3/35477843453.pdf
    • https://uploads.strikinglycdn.com/files/3ad346e3-321d-4ae8-80a1-f21638641e9b/46267329064.pdf
    • https://s3.amazonaws.com/werowibovezoje/cet_key_answer_2018_chemistry.pdf
    • https://s3.amazonaws.com/jedadokuti/best_camera_settings_for_snow_landscapes.pdf
    • https://s3.amazonaws.com/xirixepo/girl_babies_images_free.pdf
    • https://s3.amazonaws.com/fajetufekejo/bbc_iplayer_vpn_not_working.pdf
    • https://s3.amazonaws.com/ligole/zuzuluwoxogivakezasamegu.pdf
    • https://uploads.strikinglycdn.com/files/5579975c-9f47-416c-8952-f7b206d452d4/how_to_assemble_m50_gas_mask.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_off0000d09c.bin
1e18c2a63ef960754ad1f13530829a1b7b0b4632b6ed4600f461409f0df418c5
pdf-font-stream PDF embedded font (sfnt) at offset 0xD09C 5596 bytes
font_01_sfnt_off0000e3b9.bin
a09475a22e24ef86a16fb5b46ae165eaac25eac69155775de9ae1cb81d4e3de8
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B9 10992 bytes