Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a266febfc108ba4…

MALICIOUS

PDF

74.9 KB Created: 2021-03-24 01:55:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c06a853f4f881ed79d935e9312391670 SHA-1: 9e94bbdd710c974292389af34b44d848e757eb47 SHA-256: 7a266febfc108ba4fa4daf95a51584730c91a0d3d2e787b4861e1d462121af8a
116 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, identified as a lure for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be related to search terms, suggesting a phishing lure designed to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://pelibifir.ru/wix?keyword=punnett+square+online+practice+middle+school
    • http://zathkatow.xyz/xerox_versant_180_press_service_manualz66wz.pdf
    • http://scarcebook.com/knock_balls_apk_download4hzr5.pdf
    • https://cdn.sqhk.co/fumediju/YYeENh1/monster_hunter_world_iceborne_master_edition_g2a.pdf
    • https://static.s123-cdn-static.com/uploads/4500889/normal_5fc8973daa440.pdf
    • https://cdn.sqhk.co/gezubesekar/hgiejcV/romovizipepivoti.pdf
    • https://cdn-cms.f-static.net/uploads/4466664/normal_604d19ad48e29.pdf
    • http://iglivesupportteam.com/minafader01om.pdf
    • https://cdn.sqhk.co/kupawusel/hfj8qhf/72125947763.pdf
    • https://cdn-cms.f-static.net/uploads/4383689/normal_6050e7a54fa3b.pdf
    • https://cdn.sqhk.co/furigelo/hjgcfig/qr_code_scanner_android_studio_2019.pdf
    • http://aicberg.net/3273233055veaxp.pdf
    • http://onkoprofi.ru/jesosatawixufofinomewijadq8ajc.pdf
    • http://reduslim-italiaufficiale.site/woxupogebelonakemegeftjidv.pdf
    • https://cdn-cms.f-static.net/uploads/4415334/normal_6042f20af1c8b.pdf
    • https://cdn-cms.f-static.net/uploads/4449193/normal_6058d1d659c28.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/15b636d0-9f3a-4f5e-b881-fd146f3c59cb/bopusuvor.pdf
    • https://c1ab63b4-4781-4901-abeb-f581ed41d26f.filesusr.com/ugd/b44917_daf2133ffd0b402ca9411f324dfd57a8.pdf?index=true
    • https://uploads.strikinglycdn.com/files/aa53c125-ab6e-49b6-a07a-2c65e124dbe2/human_body_systems_and_their_functions.pdf
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_a211a94a93de455595aeaaffc95b4a7d.pdf?index=true
    • https://uploads.strikinglycdn.com/files/162a89c1-a415-40f0-8387-3c2aebe9505b/international_truck_service_department.pdf
    • https://uploads.strikinglycdn.com/files/52de29a1-cf7a-45ac-9132-eb00a9be55ec/clave_de_registro_para_ultraiso.pdf
    • https://18e99e0c-7034-4a8c-9069-267580a295b8.filesusr.com/ugd/b337f5_9517e73b638543b985c5d537c220f680.pdf?index=true
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_6be246aa53a940659fc65effa3019bc6.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_off0000e742.bin
886f9b58a8a6fbddb52f5f780d471d879cee5bfa96a8475752c8b31ddedb068e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE742 5440 bytes
font_01_sfnt_off0000f992.bin
a53bd8498c7833830d0530e354d5aeebb94f6770efda2ca8e5d48e2c27b69854		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF992 10672 bytes

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