Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7b6d75a52e8ab83…

MALICIOUS

PDF

82.8 KB Created: 2021-04-01 20:40:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 2677ff5ec29f9195a9acf6707c5d8b0c SHA-1: fcf7567c734795e11dceaa1901c42366c1e96275 SHA-256: d7b6d75a52e8ab838dcdba700e61d1d128c0a6b31bb5be684ef24b4ad4e077ba
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one prominently displayed in the document body as a search result for a book summary. This URL, https://bologen.ru/award?keyword=a+wrinkle+in+time+chapter+summary+pdf, is likely a lure to a phishing or malware distribution site. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as Pdf.Phishing.Trojan.

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://bologen.ru/award?keyword=a+wrinkle+in+time+chapter+summary+pdf PDF link annotation
    • http://rigoditibalun.mywebcommunity.org/87835108134.pdfIn PDF document text
    • http://totalcreditreport.info/kabipidxpoj.pdfIn PDF document text
    • https://cdn.sqhk.co/voguzasijur/ogc70ge/wamerasakamudaze.pdfIn PDF document text
    • http://alisabor.design/raxijoposimijeu072b.pdfIn PDF document text
    • http://probmake12.xyz/ielts_reading_practice_test_28_with_answersdm75v.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/wfgcVeW/steven_universe_save_the_light_apk_mediaf_re.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/vizio_m322i-b1_price.pdfIn PDF document text
    • http://tapasin.sportsontheweb.net/maxosemuxikefomosebafi.pdfIn PDF document text
    • http://zokazurimila.mygamesonline.org/stripsody_cathy_berberian.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pipovafalalum.rf.gd/nespresso_vertuoline_plus_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/how_to_install_evenflo_baby_car_seat.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/sword_art_online_alicization_war_of_underworld_dub_release_date_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/balsamic_honey_chicken_sheet_pan.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/77778058548.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/ventless_washer_dryer_combo_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/moss_green_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/jiboligigugubibajetiti.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/what_are_some_of_the_most_popular_film_genres.pdfIn PDF document text
    • http://judiserod.onlinewebshop.net/xivapaku.pdfIn PDF document text
    • http://lawigut.rf.gd/cid_all_episodes_in_3gp.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_off00010826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10826 5640 bytes
SHA-256: 2f9e4ad296f8c30fcb19ea78ae3a3a7167409eb868fd30cb1f8c9adee2e59b14
font_01_sfnt_off00011b4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4D 10080 bytes
SHA-256: f84bc5f991d48eeee56e5422e07a64509d03a820a8d1a1e0f5269aa32fdf1bd7

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