Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac1f3a409d34680…

MALICIOUS

PDF

208.7 KB Created: 2021-03-15 17:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 45d083a2d4994763584dcf5e72ec8159 SHA-1: 6edaa73eb4dea647b4cf4c8d95bc2e0909a2f3cd SHA-256: 1ac1f3a409d346809b1cd04415a204d1899a5fd69e71b9d09687c5146c6f25a6
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 0.9897

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/123?utm_term=che+guevara+history+in+english+pdf PDF link annotation
    • http://bet-info.ru/6494243897lhflu.pdfIn PDF document text
    • https://cdn.sqhk.co/kidimezamos/ffTjejg/hill_climb_racing_3d_game_download_uptodown.pdfIn PDF document text
    • http://mif-smeh.space/how_to_punctuate_dialogue_with_exclamationpzdo4.pdfIn PDF document text
    • https://cdn.sqhk.co/kagurase/VfCgjjg/inside_the_box_tv_show.pdfIn PDF document text
    • http://100naturals.fun/23281241056ymna0.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/hgdxsHa/1228500308.pdfIn PDF document text
    • http://mikrotikwizard.com/ruvizemenocu1o1.pdfIn PDF document text
    • http://grantmedica.ru/20960373008ibsl5.pdfIn PDF document text
    • http://crawlmqyu.space/45872488504sipbq.pdfIn PDF document text
    • http://kmplitka.shop/bigetuzodezawevemhuznm.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/KYBiiih/vomit_comet_roller_coaster.pdfIn PDF document text
    • http://azules.ru/dead_by_daylight_xbox_one_codelttr9.pdfIn PDF document text
    • https://cdn.sqhk.co/mofekuma/gZdHbX9/dragon_shooting_survival_games_mod_apk.pdfIn PDF document text
    • http://stc-l.ru/poxuduka4ey6o.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/babuxufarizuxur/ar-15_magazine_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c940ec2-505d-4867-a5fa-104afaed8181/welupebesuz.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/ambi_turner_cracked_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/31599088177.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/apus_launcher_pro_apk_no_ads.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50885adb-62dc-4123-be27-80253a9bc71c/batman_dark_knight_returns_by_jim_lee_statue_only_at_gamestop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52e50604-f57c-491e-86cf-fc39643dac24/ingenuity_baby_swing_replacement_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ec96dcd-cdc5-4005-9b0a-7fcd461a6cf4/70461316038.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2d777a7-f569-45a5-a869-81a58c79f726/skyrim_special_edition_mod_guide_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/10374829998.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_off0002f189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F189 5372 bytes
SHA-256: f5f577cfe5e5413baa92c154713e64749d35395d05867b9c65e1fe5536f75a8d
font_01_sfnt_off000303d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303D5 15332 bytes
SHA-256: d31e5e42bb4c959cf90db08d01dca6fee0158bea0bb31240b26f4df971c2b63b

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