Malicious PDF — malware analysis report

Static analysis result for SHA-256 185a41e767067471…

MALICIOUS

PDF

85.0 KB Created: 2021-03-21 22:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a26a7f592e1df873baae2a9a7453eeaf SHA-1: 9d127b3894c6db80d3c7295d80116083bd191933 SHA-256: 185a41e76706747148e9aea2d59b9c6a0907d5b9203e92e62ce497c810476f55
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://maypoin.ru/wix?keyword=doom+flash+games PDF link annotation
    • http://vobuxunulorepi.22web.org/nubazupatavenilakijoxi.pdfIn PDF document text
    • http://butumexumifene.iblogger.org/ms_excel_2013_free_download_for_windows_7.pdfIn PDF document text
    • http://bujufamamaw.22web.org/54223410974.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412170/normal_60399c9bd2a31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454289/normal_60018d5f1149d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367632/normal_601aee48c22bc.pdfIn PDF document text
    • http://desekikimok.22web.org/702793611.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/feseni/pdf_to_word_converter_small_tool.pdfIn PDF document text
    • http://rijogutigoxek.epizy.com/great_android_apps_not_on_google_play.pdfIn PDF document text
    • http://rifarowamenu.rf.gd/word_bestanden_samenvoegen_tot_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/bazubavak.pdfIn PDF document text
    • http://zefixufedinokas.epizy.com/limiting_reagent_and_percent_yield_practice_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/branded_formal_shoes_in_nepal.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/gem_trails_of_southern_california_braden.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f07157a-e51c-411b-a387-574e31e16f2b/where_can_i_donate_clothes_in_new_jersey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd3a57a-57ae-456c-b8eb-d235b2c927c0/28759771520.pdfIn PDF document text
    • http://ketugida.rf.gd/richmond_water_heater_model_number.pdfIn PDF document text
    • http://jaliselisasi.rf.gd/39949521053.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e40dd8f-61b9-43b9-ac31-28688316d228/41151268570.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/visavamibikamewojimugozib.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11265 5084 bytes
SHA-256: b0d8faf4dfecf8d4cb240df412a94e4f98eb7cbcd1a70763fbf1d0f92a8ae856
font_01_sfnt_off00012396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12396 10444 bytes
SHA-256: 8ccdee2e15c4dfd17ee7db58d683fd6d30dee895aba5f824088a31753f7e403b

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