Malicious PDF — malware analysis report

Static analysis result for SHA-256 754817a11b546361…

MALICIOUS

PDF

77.5 KB Created: 2021-02-20 08:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ff81d755fef9ae8cd8f162cbb91ace83 SHA-1: 5ab51d29fca3b9fc4b9a03081124c6b160546341 SHA-256: 754817a11b546361d46f9174a587e38429844ada6bc8e95b27a7c5d8c0ffc24d
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://baarspo.ru/strik?utm_term=requiem+lauren+oliver+ebook PDF link annotation
    • http://postel-na-zakaz.ru/2509710817456zfa.pdfIn PDF document text
    • http://yesstore.pro/warhound_titan_datasheet9qht2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458125/normal_60174acd9d088.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455195/normal_5feb4927b6e2c.pdfIn PDF document text
    • http://copyright-securityx.com/esl_activity_worksheets_phonicsnt59d.pdfIn PDF document text
    • http://kolaxowivod.22web.org/78122669352.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389823/normal_601dd7c7f40aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379471/normal_5fc8d14b41d33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413119/normal_6017a5c2eb6e7.pdfIn PDF document text
    • http://remumajisipiv.66ghz.com/spreadsheet_for_home_expenses.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480905/normal_5fda2c7b9041d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/geraromu/92489094437.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/formal_dresses_winter_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/no_logon_servers_available_server_2012_r2.pdfIn PDF document text
    • http://guzumirofega.epizy.com/facebook_live_video_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/old_fashioned_crisp_percale_sheets.pdfIn PDF document text
    • http://garapaf.epizy.com/jeevan_shanti_lic.pdfIn PDF document text
    • http://rexufigifex.epizy.com/38354538960.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AB 4852 bytes
SHA-256: ba1a2291aacaed86514d44e184caf593ca76203e0b1c2fc8d4c0f5cabccd7576
font_01_sfnt_off0000f611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF611 10876 bytes
SHA-256: 38554c2b9cc3700f533079a62ec50300f915caace06606f40db48d245b01c9e2
font_02_sfnt_off00011ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AE6 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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