Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c036af94e4e2657…

MALICIOUS

PDF

76.7 KB Created: 2021-03-21 09:10:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bcdf346a4fff566e9a2599857f74dc09 SHA-1: ed1dcec006ed1fecb147cbd2d1a9a4e6e84e2628 SHA-256: 1c036af94e4e2657e9c0c3dd4f8e9a71d385b060701dc6c8b8ebb2f635a0bb5f
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 0.9991

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://kuzutuzo.ru/123?utm_term=rubber+band+gun+template+cardboard PDF link annotation
    • http://rawitotizoxuk.scienceontheweb.net/quantum_field_theory_and_the_standard_model_solutions_manual.pdfIn PDF document text
    • https://nagaxubonafebax.weebly.com/uploads/1/3/1/6/131606673/5643518.pdfIn PDF document text
    • https://nefenupenarus.weebly.com/uploads/1/3/4/4/134476068/puroxumajozo.pdfIn PDF document text
    • https://bawowafakapapo.weebly.com/uploads/1/3/4/0/134042412/2bdf67ede05b8.pdfIn PDF document text
    • http://fikunigogijori.22web.org/82544316998.pdfIn PDF document text
    • https://fizinizaboz.weebly.com/uploads/1/3/5/3/135304720/2546490.pdfIn PDF document text
    • http://lemixebu.22web.org/core_beliefs_of_christianity.pdfIn PDF document text
    • http://lomuwugevona.getenjoyment.net/dilexajer.pdfIn PDF document text
    • http://losiruwu.66ghz.com/information_about_invention_of_telephone_in_marathi.pdfIn PDF document text
    • http://kizudoluwewomam.iblogger.org/vet_assistant_courses_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dalefiza.rf.gd/50368805369.pdfIn PDF document text
    • http://mugoxox.epizy.com/cox_contour_2_remote_user_guide.pdfIn PDF document text
    • http://lazuletezofik.onlinewebshop.net/66860442705.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/ac123-_16_transmitter_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/recompensa_total_banorte_catalogo_2018.pdfIn PDF document text
    • http://mukaxasapezaw.rf.gd/xadobewuzuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/14011796130.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/94227917538.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/lagu_carabao_made_in_thailand.pdfIn PDF document text
    • http://wavitur.rf.gd/84277981789.pdfIn PDF document text
    • http://junaken.onlinewebshop.net/abecedario_hebreo_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/how_to_replace_a_crosley_np6_needle.pdfIn PDF document text
    • http://gosefemifav.epizy.com/video_editor_for_windows_7_wondershare._net.pdfIn PDF document text
    • http://xikaturufurofun.epizy.com/teaching_english_grammar_book.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/yard_machine_26_ton_log_splitter_review.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_off0000ef52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF52 5360 bytes
SHA-256: ae598fc37c6ab94e74c943712b97e93aed138816547e51b14b4278fdc6e2dce3
font_01_sfnt_off0001017a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017A 10636 bytes
SHA-256: 677f6a34c58d6b8407f607e0d0503f7b48eabeab1043c8fb2aa069a2e32fc831

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