Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd1b421f8534617…

MALICIOUS

PDF

87.4 KB Created: 2021-03-21 07:19:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6ee9b112f39d90a28bd05de0be0e6d4e SHA-1: 16b08a46f56c5ca48d5fac2245809f5670165888 SHA-256: fcd1b421f85346172f5010ca499b93893f31071c38907da4a731bb3d19f85c8a
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 0.9998

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://baarspo.ru/strik?utm_term=american+buffalo+broadway+opening PDF link annotation
    • http://reduslimitalia-ufficiale.site/muwesiwometabiwekenixio0jrp.pdfIn PDF document text
    • https://lexawuvake.weebly.com/uploads/1/3/4/6/134610488/865373.pdfIn PDF document text
    • https://latopilufazi.weebly.com/uploads/1/3/4/0/134017217/dozajamiravotewalo.pdfIn PDF document text
    • http://qqkaxes.xyz/41951899887b704z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408324/normal_6049dbda133ea.pdfIn PDF document text
    • http://sodalabs.club/what_to_do_at_lilycove_city_emeraldkf9uw.pdfIn PDF document text
    • http://tramlaweq.online/128766003577n8c4.pdfIn PDF document text
    • https://rukupapafi.weebly.com/uploads/1/3/0/7/130739745/fuxaxudaxoka-gedobovikalexi.pdfIn PDF document text
    • https://siwetoro.weebly.com/uploads/1/3/0/8/130814297/rukogexab.pdfIn PDF document text
    • http://reduslim-ordina.site/best_tile_material_for_kitchen_backsplash7j7j8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426090/normal_5fe709710dae5.pdfIn PDF document text
    • http://maslovauto.ru/does_my_honda_have_a_recalla5vkt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419413/normal_5ff406bec3fdf.pdfIn PDF document text
    • http://csxmoney.info/it_chapter_2_stephen_king_cameo0tt5b.pdfIn PDF document text
    • https://gefivogixofix.weebly.com/uploads/1/3/0/9/130969648/nosut.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/sitozi/wewotusekapafokako.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/wuzilavesasema.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/komanewekezodogoler.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/war_card_game_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_off00011495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11495 5620 bytes
SHA-256: 5ccb531a9142bc8f49ae9e0438f380d76c9d3e40279549bcd2d26ede4d6fc88c
font_01_sfnt_off000127bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127BC 11384 bytes
SHA-256: b495be5f12d59b5c069e2941521edac153e62d1b4badf13550660adce7921f8a

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