Malicious PDF — malware analysis report

Static analysis result for SHA-256 08109c3219d7d9ea…

MALICIOUS

PDF

75.7 KB Created: 2021-05-18 18:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6343cb014898a836b0c123ecc7ed9ca7 SHA-1: c395729fd0996517881f5510507c52fc72db7973 SHA-256: 08109c3219d7d9eaef85e1fd97f3f80c7ae78b970016303b5b5f85aecfc8f95d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://seumenha.ru/strik?utm_term=sorelle+vista+elite+crib+and+changer+instructions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370068/normal_605fb9b07d4b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464314/normal_602f1a23320e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490375/normal_5fd96907da013.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421036/normal_60070955d28f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_603ba755a3725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495269/normal_60129e96163bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417030/normal_6062bba8ad805.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375907/normal_60510201f26fe.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/fejakixoweka/90980220564.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/critical_ops_apk_data.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/will_there_be_a_sixth_book_of_miss_peregrine.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/zoxugufinogejorikas.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/revised_standard_version_bible_catholic_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/34023683920.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/worosanadoxuwidukizilen.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/14584981321.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/xogoviwedologofezo.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/dokaxenijigakisopet.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/49860682142.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/sifudulatidadekejijazeg.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/52973388870.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/watch_free_movies_online_diary_of_a_wimpy_kid_rodrick_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/6112813367.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/fetifesebofedeninobinam.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/transformers_autobots_first_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/74837710612.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_off0000e9c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C4 5504 bytes
SHA-256: 17f29fbb1cc3b364a616d85fa55e59bf6f9c07c869e0d1f671f3a024c0604744
font_01_sfnt_off0000fc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC72 10580 bytes
SHA-256: bd743f08eb66f1936237bff08c1c554123dfde80c071322de1398d0ca976f422

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