Malicious PDF — malware analysis report

Static analysis result for SHA-256 61662887757e8f84…

MALICIOUS

PDF

114.6 KB Created: 2021-03-15 04:05:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a68d9a25ee10ba6ff0d86ec6f27d8cd4 SHA-1: f8bec099dd5c8c14c1fea2e6c3b6c5fc587bdab9 SHA-256: 61662887757e8f84e3bb5eb4da813cf8c489523cdb375ba62112e4df43f84505
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://crophysi.ru/strik?utm_term=little+red+riding+hood+summary+in+french PDF link annotation
    • https://cdn.sqhk.co/vobevufubito/hhy5pgj/kifoz.pdfIn PDF document text
    • https://cdn.sqhk.co/kurafuso/h78hauc/fafobabirowimabagedidiw.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/93239575657q5q50.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/Bifeji0/frases_tumblr_sobre_amor_proprio.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwozobo/ijiijGb/uber_eats_local_food_delivery_app_download.pdfIn PDF document text
    • http://fegalaro.iblogger.org/96260692334.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/jgwgigi/57599914666.pdfIn PDF document text
    • http://wurulef.22web.org/jakal.pdfIn PDF document text
    • http://amaryllis.space/xiwofokiravebitodaqi7yb.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/xutomoxu/86788461592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e2c0cdb-03df-412b-9c77-7ef1c5962967/what_is_the_sequence_of_steps_for_the_service_recovery_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e42c0cbd-9dd6-41c2-896a-306b16532f7b/6449214982.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/how_to_write_goals_in_workday.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/conditional_probability_statistics_def.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d11bb130-61d0-48b0-a0cf-e9cf90b5c6f6/josijeromelorewezuwokaziz.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/conclusion_industrial_training_report_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d7dec1e-afe7-4cd7-a9f8-ed5b1381f514/98333734895.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/nawazawixitologipojokub.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/what_was_the_darkest_day_in_history.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001733d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1733D 5360 bytes
SHA-256: d0bff7274af3224b8798d84da10acb31bc36b3f333b75471fd9a97bb13514d25
font_01_sfnt_off0001854e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1854E 12812 bytes
SHA-256: 52f150b4042488f2a3f53f54af29fd475d3f2190a09f6b808d685ea2be7016d3
font_02_sfnt_off0001ae5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AE5A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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