Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ee20563fb55194…

MALICIOUS

PDF

65.3 KB Created: 2021-02-24 02:10:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 66c2b90a990c7e373d1b88234d0bd727 SHA-1: ef5cbc8e1241b9b6a9e3e7e494aaae093ec4c928 SHA-256: 39ee20563fb551947cc721e1ef97f2abd640dc03b8a5cdaa928e3538e4673d4d
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of multiple external URIs suggests an attempt to redirect the user to potentially harmful 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/wix?keyword=el+novio+robado+question+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366022/normal_5ff252fcd8f94.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415327/normal_5ff7fb7887517.pdfIn PDF document text
    • http://lisolu.org/fowokimefadp3eh0.pdfIn PDF document text
    • https://sadavofabuloxus.weebly.com/uploads/1/3/5/3/135316226/mararekadisu_metulopol.pdfIn PDF document text
    • http://5coupon.info/how_to_fix_ignition_failure_on_hayward_pool_heatersfplu.pdfIn PDF document text
    • https://vawosikajoj.weebly.com/uploads/1/3/1/4/131438279/998298.pdfIn PDF document text
    • http://aazzzry.space/caregiver_interaction_scalecu9lm.pdfIn PDF document text
    • http://xowozumevabig.66ghz.com/arctic_monkeys_fluorescent_adolescent_drum_sheet_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383128/normal_5fcf8625376e4.pdfIn PDF document text
    • http://fuckfrsky.com/91554343871qb9nr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405904/normal_5ff9aef036cd0.pdfIn PDF document text
    • http://kmplitka.shop/45236270951ube1r.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/zukogi/45230504813.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/cause_i_love_you_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/smart_goals_template_free.pdfIn PDF document text
    • http://lexojowal.epizy.com/98449409557.pdfIn PDF document text
    • http://ritanuwo.epizy.com/atbu_admission_list.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/71959224762.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_off0000c406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC406 5192 bytes
SHA-256: d8650108d511dfed7c2c1ff33bf6ab77a31fa0d0e14f99de0857135b57b523a6
font_01_sfnt_off0000d5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CB 9932 bytes
SHA-256: e9c9c597e059568572ede17e7ee4813a01f4125e5563e3c7f66307fac230fc62

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