Malicious PDF — malware analysis report

Static analysis result for SHA-256 996bf456477eb1d3…

MALICIOUS

PDF

81.7 KB Created: 2021-02-26 00:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d0619af875b6e8ea228c7a48c76bfe36 SHA-1: 1700d88a9a3ad96e9d9c83b7ddc0461e43e66558 SHA-256: 996bf456477eb1d3fcda8b6e0147bdce7c70fbf68c9bf3f7bc8a938aae2d08c4
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=are+commercial+leases+paid+monthly PDF link annotation
    • http://katipef.medianewsonline.com/what_does_it_mean_when_my_whirlpool_dryer_says_sensing.pdfIn PDF document text
    • http://towufato.mywebcommunity.org/intelligent_control_systems_an_introduction_with_examples.pdfIn PDF document text
    • http://boforotaje.mywebcommunity.org/how_to_train_your_dragon_2010_villain.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/28749423203.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/total_quality_management_by_jayakumar.pdfIn PDF document text
    • http://gogadozuxigode.iblogger.org/ubuntu_live_usb_ita.pdfIn PDF document text
    • https://cdn.sqhk.co/tejilunuf/TMCietI/star_girl_fashion_cocoppa_play_mod.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/aswc-1_harness_installation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zevusup.atwebpages.com/vuxokosarukozowikovirunix.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/dictionnaire_synonyme_francais.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/5e_warlock_pact_of_the_chain_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/lalumujagikibef.pdfIn PDF document text
    • http://fepapasofefo.epizy.com/equivalent_fractions_worksheet_2.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/29726508740.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/dysfunctional_uterine_bleeding_guidelines_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/bijewalafuvakekare.pdfIn PDF document text
    • http://mumupaju.epizy.com/char-broil_ss_performance_4_burner_grill_w_cabinet_reviews.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/what_is_a_bell_jar_a_metaphor_of.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_off0001039c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1039C 5404 bytes
SHA-256: 34cefc36cd34fc8b1e70927a00268e663129e510fa1489ca1d48d827f92d292a
font_01_sfnt_off000115d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115D1 10492 bytes
SHA-256: a915af176cc42bdd634610d67a4dd0c27a9cd0379feb23e8a360110a243d3faf

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