Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e3b00ccdd0767fa…

MALICIOUS

PDF

71.5 KB Created: 2021-02-20 21:44:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: e8278d4709712437ceb287e11176958b SHA-1: dcadbbec90627a76bf7bddc87dc3ca8e903b286f SHA-256: 8e3b00ccdd0767faafc83bb48178a4ae9acf6fead780ac66b375fe079d0cb07b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/strik?utm_term=de10+lite+tutorial PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449603/normal_5ffc9a526c23f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485943/normal_5fce69343e472.pdfIn PDF document text
    • http://xumarageli.22web.org/chachi_420_full_movie_free_300mb.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/ijfhh8T/wobaj.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/xajowu/90808745685.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/fusikejipaxobobodekod.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/aptoide_apk_indir_cepde.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/80657884852.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/smart_answers_to_how_are_you_doing.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/92666849322.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/68143990212.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/54444555439.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/biluda.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/chemical_equations_moles_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/carcassonne_river_rules.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_off0000ddf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF8 4692 bytes
SHA-256: 138c914c25a153006e67c531774492f5c4a099547e3838f8b333f8d39e276b45
font_01_sfnt_off0000ee01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE01 10472 bytes
SHA-256: 56bf67b1d4d000c4176b64104bbd4cd74489401bfef9589570bf491c84e62a31

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