Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a087ca7228fecd…

MALICIOUS

PDF

77.8 KB Created: 2021-03-13 15:58:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: da16c64f01af2c60c904fcafe90d6141 SHA-1: 1c6b16ec9ec1a355c86598579634b0602e3e95cd SHA-256: b1a087ca7228fecd44bd1df67c68305dc28404f3ec744d85dfed5ce388068e3e
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://dugedepap.ru/123?utm_term=bullet+force+hack+apk+1.+48 PDF link annotation
    • https://toroborelap.weebly.com/uploads/1/3/4/8/134867907/gafebovirazabopuwori.pdfIn PDF document text
    • https://vumizopefi.weebly.com/uploads/1/3/5/3/135313358/3527694.pdfIn PDF document text
    • http://edapog.online/31031111523jap6h.pdfIn PDF document text
    • https://verijijul.weebly.com/uploads/1/3/4/8/134861220/pukabobozawone-pegopibopam-sojuzigilawumi-dunonok.pdfIn PDF document text
    • http://proita.fun/what_is_a_business_plan_essayegndd.pdfIn PDF document text
    • http://bristol-yalta.run/chapter_11_section_2_reteaching_activity_imperialism_case_study_nigeria2ncgf.pdfIn PDF document text
    • http://legalvictory.group/how_to_crack_gta_v_epic_gamesy52pc.pdfIn PDF document text
    • http://prizinsta.online/19642472459w660q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_602ae2d07a82f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492600/normal_5fd7f5f17d3ff.pdfIn PDF document text
    • http://esmoney.site/stem_cells_breast_cancerd6qf8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tatasuvuputo.epizy.com/21383087095.pdfIn PDF document text
    • http://bogepep.rf.gd/robbery_movies_in_tamil_dubbed_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/wofulisujafowerivavitegeg.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/81030636019.pdfIn PDF document text
    • http://webezivoxubabo.epizy.com/pet_sematary_cast_new.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/java_phoneky_bubble_shooter_game.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/corporate_financial_accounting_chapter_5_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/fs-i6_transmitter_and_receiver.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_off0000ef97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF97 5404 bytes
SHA-256: a12b8436094cabf9dd82771ad174458aa90ab88713266817efbd9b8cf0bf9619
font_01_sfnt_off00010203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10203 12828 bytes
SHA-256: 8e9a7e1fb997f1916a9795b7405fa6f075adc4333f6b972b07aa643b7d1ef240

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