Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec3a8e9034a7346…

MALICIOUS

PDF

71.2 KB Created: 2021-02-17 01:51:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 16d091ebb00e4cc0545e1c4ab4429d4c SHA-1: 712936c8100f8fd703349e1d39008fcf6290fa4e SHA-256: bec3a8e9034a7346a5380376584ac3a6aa93922c3a984eab479e2b9ae0576977
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is also listed among the extracted URLs. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=sony+cyber-shot+dsc-w560+14.1+mp PDF link annotation
    • http://life-news.tech/40473631918rmwnk.pdfIn PDF document text
    • http://premiumpornclips.com/android_bubble_sheet_scanner_github0i2da.pdfIn PDF document text
    • http://italysummer.fun/abiude_lavar_roupa0svrl.pdfIn PDF document text
    • http://alluniversity.fun/33754996581mur2z.pdfIn PDF document text
    • http://magic-world.site/kokiviruqu.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/sezebepit/95204136000.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/vr_cardboard_videos_free.pdfIn PDF document text
    • http://duxejuxaxeze.epizy.com/zojine.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/family_tree_template_powerpoint_free.pdfIn PDF document text
    • http://xesujenomudot.epizy.com/2107297480.pdfIn PDF document text
    • https://s3.amazonaws.com/dikomavomem/amazon_prime_app_for_mi_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/yogurt_griego_alpina_natural_informacion_nutricional.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/tedemuziv.pdfIn PDF document text
    • http://solobasoridevel.epizy.com/rolubirolovutitinipijut.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_off0000d852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD852 6132 bytes
SHA-256: 68a05f35fb90fe50bd64a1747c05b7d8b4a8dd37cbbb6b479df7e7956508a9e2
font_01_sfnt_off0000ed35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED35 10280 bytes
SHA-256: 927e308dd97a0aaf869ad7ece61ee07dcfbd80361a5240f722ef74dbb7c02c2f

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