Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a9f3dd9b0f96f5…

MALICIOUS

PDF

80.5 KB Created: 2021-05-08 05:07:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7c0b8d00fbfc586cbd9ad6f4d7a2e77a SHA-1: 241fe1c517e797c08d8a20301ddc313301b19b81 SHA-256: 45a9f3dd9b0f96f518abca8c79c7f100f7a0bf695916c4802ce91225f0d0bd35
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, and contains an embedded URL pointing to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to 'Fedex tracking information not available', aligning with phishing tactics. The presence of embedded URLs indicates an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/strik?utm_term=fedex+tracking+information+not+available PDF link annotation
    • http://funseeds.site/fishing_guide_fortescue_river_mouthyedi7.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/jhivig8/37482497372.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448539/normal_602783351f860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415322/normal_5fd2b0bd3814d.pdfIn PDF document text
    • https://cdn.sqhk.co/dunuxorigu/eXMaqhb/adobe_premiere_title_effects_free.pdfIn PDF document text
    • https://cdn.sqhk.co/dunuxorigu/jejagcw/broiler_poultry_farm_project_report_in_telugu.pdfIn PDF document text
    • http://newberginvestmentproperty.com/hp_laserjet_pro_400_m401dne_specsbqoin.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/aOuiamS/soothing_sleep_sounds_free_app.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/ii9jihf/madapolelakimenolizor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zijivevip/kezogebiruzolodowasezo.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/my_wonderful_aunt_guided_reading_level.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/solekanumej.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/teddy_day_bangla_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/91387908292.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/jikotesakipegilazatav.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/best_safety_razor_and_brush_stand.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/nalelawudomezisil.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/6197332900.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/dibasi.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/tumuzozibimekuw.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/google_drive_whatsapp_backup_to_iphone.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB28 5452 bytes
SHA-256: f7bb533cbeeab2b06f585f1039b67d1a4ca7fe7e46bc8ef0beccd269dd81c13f
font_01_sfnt_off00010db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB3 11484 bytes
SHA-256: ebc360c189ba85b56edb9f5d4898b9d1609788afcd60f180c4adc82bcf76cacb

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