Malicious PDF — malware analysis report

Static analysis result for SHA-256 f030f82e9303a978…

MALICIOUS

PDF

85.0 KB Created: 2021-03-15 23:17:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: df5d298c652112846b17668135e3e80b SHA-1: a2f51ee8d75567f1de117ef95cc17fb658417c0f SHA-256: f030f82e9303a978339b460f48b8a915ad33aa738e124f824da215b02bf9f868
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI, pointing to a URL that is likely malicious. The document body, though heavily obfuscated, appears to contain text related to 'Adobe Premiere Rush CC system requirements', suggesting a lure. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jottigo.ru/strik?utm_term=adobe+premiere+rush+cc+2019+system+requirements PDF link annotation
    • http://retapadu.medianewsonline.com/i_love_to_word.pdfIn PDF document text
    • http://sifejon.22web.org/brand_equity_questionnaire.pdfIn PDF document text
    • https://cdn.sqhk.co/jesisuvov/sjdpFnD/vorolazuropomiripusu.pdfIn PDF document text
    • http://vobafoselalulor.mypressonline.com/applications_of_nanotechnology_in_electronics.pdfIn PDF document text
    • http://tupakewufitid.iblogger.org/nazasisomawokeromunuwaram.pdfIn PDF document text
    • http://viwavidif.getenjoyment.net/muditugoposotusogapapukis.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/iF7ijic/58449443381.pdfIn PDF document text
    • https://cdn.sqhk.co/zidodovare/0ajfpge/pigidanebosig.pdfIn PDF document text
    • https://cdn.sqhk.co/kebokeregim/JjhwjaF/greatest_hits_of_the_50s_60s_and_70s.pdfIn PDF document text
    • http://pepariravifaza.getenjoyment.net/aqa_a_level_biology_revision_notes.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/popcorn_sheet_music_violin_canon_in_d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/faduxodiwo/is_hcn_ionic_or_molecular_compound.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/how_to_make_apple_smoothie_recipes.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/stormbreaker_full_movie_free.pdfIn PDF document text
    • http://dovagoxaluzof.rf.gd/civilization_6_guide_stratgique.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/nesubimenil.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/call_of_duty_mobile_thailand.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/chicken_invaders_5_full_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/fresnel_magnifier_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/yasuo_guide_probuilds.pdfIn PDF document text
    • http://pakekaririwofas.rf.gd/wooden_dinosaur_skeleton_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/maplestory_mobile_mesos_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/91_freeway_traffic_report_california.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/volume_formula_for_prisms_and_pyramids.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB1 5792 bytes
SHA-256: 624fa9162a3c98018e16a688c75a1c6e0a9d1c6b376f9eacc1644216de8aa49c
font_01_sfnt_off0001114b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1114B 11424 bytes
SHA-256: 47cb34cc5e9b92d0df732b62a666f0f71b0f1b9bdb986c287c6cd5a8d7ee4f06
font_02_sfnt_off0001380a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1380A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3