Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f41cd3b2e01da7c…

MALICIOUS

PDF

66.0 KB Created: 2021-02-10 16:51:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 2c45a07479596daf5f34748c573c7665 SHA-1: 72d1659279f6e7617739823e378ee258163ae43d SHA-256: 6f41cd3b2e01da7cce343b8466c6e3f3c107bf1fb74dca25bb097ed1bfada782
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The embedded URL, 'https://jacksth.ru/aws?utm_term=weather+report+in+mangalore', is likely part of the lure to trick the user into clicking it. Although no scripts were explicitly extracted, the PDF structure and the nature of the heuristic firings suggest it's designed to exploit PDF vulnerabilities or trick users into navigating to malicious content.

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://jacksth.ru/aws?utm_term=weather+report+in+mangalore PDF link annotation
    • https://luxaxila.weebly.com/uploads/1/3/0/8/130814132/wobejefunakuti.pdfIn PDF document text
    • http://helpcopyright-service.com/rodiranov5r2n0.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/xhbEhbL/plague_of_killing_the_firstborn.pdfIn PDF document text
    • https://cdn.sqhk.co/ronofumito/hjbjbPC/gmod_fnaf_mod_pack.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/ajh7ghZ/bafivovo.pdfIn PDF document text
    • https://tobejisexin.weebly.com/uploads/1/3/1/4/131454505/vizizejuzaxaz-vexavowoxogisej.pdfIn PDF document text
    • http://my-favshopd.online/4580306565locij.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/iegfTcU/statutory_live_hashtags_and_tags_app_for_instagram.pdfIn PDF document text
    • http://mivetys.xyz/c_vector_template_arguments1h2v7.pdfIn PDF document text
    • http://smeh-mif.space/magnetism_practice_worksheet_answersqkkut.pdfIn PDF document text
    • http://mignonette.space/369603419531h3lv.pdfIn PDF document text
    • http://starkrobotics.org/domimukopajisbl35.pdfIn PDF document text
    • http://musc-media.xyz/secret_of_the_psalms4glis.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/sefiwegegagu/povodixufapadokemafodojat.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/smash_bros_joins_the_battle_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/bee_flower_picture_94_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/android_sdk_windows_10_location.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/ppt_apbn_dan_apbd.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/20455644569.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/40538420955.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_off0000c541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC541 5068 bytes
SHA-256: 71ecb36c9f922cbcf1e061fdc6d9072a7611600acee2dedaaea98494b1eeee9a
font_01_sfnt_off0000d662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD662 10352 bytes
SHA-256: 9431a9df609de6ef73477f09915b30df5766ec8feac5ea703ff03c075ca6a9f5

Open this report in the interactive analyzer, or submit your own file for analysis.