Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5594b30e6c8c56…

MALICIOUS

PDF

205.1 KB Created: 2021-03-16 15:34:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3d927e67b3dba6bb5a4acf6ae03d0263 SHA-1: 48aece1f4836c0ceb3709e52ba11aa9bf51d5014 SHA-256: 3e5594b30e6c8c567232ec72e2702064f39c5a95b87b3c864eb3512ffd34ecf6
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though partially corrupted, suggests a lure related to a service manual, likely to trick users into downloading a malicious payload from one of the external URLs. No scripts were extracted, but the presence of multiple suspicious URLs indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9817

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/strik?utm_term=2001+kawasaki+vulcan+1500+nomad+service+manual+pdf PDF link annotation
    • https://vazanopika.weebly.com/uploads/1/3/4/8/134896022/163677.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/gfgiHic/36283083552.pdfIn PDF document text
    • http://wwbook.org/86093379378n76jv.pdfIn PDF document text
    • https://cdn.sqhk.co/mevexobuzur/iejdheA/14455095027.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/c1aiagg/54252897674.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383475/normal_5fe0cdd0803d1.pdfIn PDF document text
    • https://mulaxenowaw.weebly.com/uploads/1/3/4/8/134862071/maban.pdfIn PDF document text
    • http://thedopemarketing.com/65962329295gqz0i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423195/normal_604c9f067bb06.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470839/normal_5fdd0a714fd97.pdfIn PDF document text
    • http://sell-toclick.online/color_picker_hex_to_rgbq7y5e.pdfIn PDF document text
    • https://cdn.sqhk.co/mofokamibe/engeigj/smart_cross_connect_app_download_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375528/normal_5fe255f10ffc6.pdfIn PDF document text
    • https://cdn.sqhk.co/xurawupo/fBSgdwJ/bhaiaji_superhit_songs_320kbps.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_604a859d57a62.pdfIn PDF document text
    • https://sipebiwamedewor.weebly.com/uploads/1/3/4/7/134707389/zedofumexi.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/sugowubuf/zigosolaluzupitagavaf.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/adobe_indesign_2019_calendar_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7769580b-ecae-481b-87c4-8f80a6d50138/zilumawujarifajarep.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/37677281328.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/596886c5-aa12-49d7-96aa-b204d912b73d/banativoxavazijanes.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/fororewazifakegaxumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/605baf8d-7d43-43b3-a1ef-6f9a00bb9feb/human_resource_management_ppt_download.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002c6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6C2 5872 bytes
SHA-256: 2e1ed0fe6a8798d10a3601b67bd58e14ba15f1e161fed20f2dcc86b1facb8d44
font_01_sfnt_off0002dad2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAD2 15780 bytes
SHA-256: 4ff3af32a6e59c85e0baec13772f59f848ce5bcc53013e5f69ee7baf36dcbaf8
font_02_sfnt_off00030df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DF7 16148 bytes
SHA-256: 49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648

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