Malicious PDF — malware analysis report

Static analysis result for SHA-256 804711ad8d5da026…

MALICIOUS

PDF

82.9 KB Created: 2021-03-29 05:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 6153331794117f9bff46d714bbd20b28 SHA-1: b7fa330773937c800c459cad173db39ce14607a3 SHA-256: 804711ad8d5da0266d801b9b0632fdfdb5a53ba226a6223e90eb9edb00e127f4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as instructions for a baby carrier. This URL is likely used to deliver a malicious payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, and the PDF structure itself contains an external URI pointing to the suspicious domain.

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://jumiwimov.ru/strik?utm_term=baby+bjorn+original+carrier+instructions+newborn PDF link annotation
    • http://nugomax.iblogger.org/acer_predator_helios_300_specs.pdfIn PDF document text
    • http://pokezokebawi.mygamesonline.org/el_alcoholismo.pdfIn PDF document text
    • http://fumizudo.sportsontheweb.net/pidakusudozefanobomiwu.pdfIn PDF document text
    • http://jokebixa.22web.org/animation_desk_paid_apk.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/nefunupu/bapitegesejupakadamuliv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1338863-65b0-4873-a5b4-f1244e6eaa86/mofodotiperedirexedul.pdfIn PDF document text
    • http://biligisagazo.epizy.com/18788923862.pdfIn PDF document text
    • http://levapoloj.onlinewebshop.net/miwesenatomekisibaw.pdfIn PDF document text
    • http://vonupov.epizy.com/commandos_5_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/88052957763.pdfIn PDF document text
    • http://vinagojum.rf.gd/rca_visys_25424re1_4-line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be3884c6-b744-46f8-b506-5ed8afcdb3ad/the_beatles_here_comes_the_sun_ukulele_tabs.pdfIn PDF document text
    • http://kawojimulogizef.rf.gd/pamegomemetaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f866dcff-44cc-4e88-865f-fcb4ac435fb6/toyota_camry_hybrid_se_2018_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/kolibetedarimat.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/factoring_polynomials_worksheets_with_answers.pdfIn PDF document text
    • http://gipomafusabakix.rf.gd/59074058242.pdfIn PDF document text
    • http://dosunadis.epizy.com/annotating_poetry_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/toro_sprinkler_valve_repair_kit.pdfIn PDF document text
    • http://mijofifekokug.rf.gd/why_subscribe_to_twitch_channel.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/basha_telugu_movie_songs_free_doregama.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_off00010633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10633 5428 bytes
SHA-256: 819a61c8d2f28bb7345251d9935e0502b989a98f9b8129b8e43af95cb2199de5
font_01_sfnt_off000118d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D8 11240 bytes
SHA-256: 9888b77c9cf28a7e5e2229acf3090b1db924e8baceac2db4c9d4fb74851539ab

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