Malicious PDF — malware analysis report

Static analysis result for SHA-256 508a97fc2279a4ac…

MALICIOUS

PDF

82.2 KB Created: 2021-03-06 16:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: cbbae7f8c4e6005b393f695c075af0de SHA-1: 00f110b894015bd9ca4668c7522853d0d84b1916 SHA-256: 508a97fc2279a4ac68dcae8a5de2d0d449c579b27b6c00f40f0407e01be8e241
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site disguised as a coupon offer. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution. No scripts were extracted, but the presence of a malicious URL and the document's deceptive content are sufficient indicators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://ponafet.ru/wix?keyword=turbotax+coupons+2020 PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nojemi/what_is_human_social_development.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/27118136961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db965ab3-46a8-4173-b2bb-f775492e4d1d/43831979124.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/aminoacidos_sinteticos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bccded3-257b-4658-adae-b4cb472dd587/macroscale_and_microscale_organic_experiments_7e.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/pupujufagupodi.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/73368790889.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/zegifezaruv.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/vufaluromutoposirigedobux.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/galaxy_defense_strategy_game_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/kizabuvid.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/indian_flag_with_army_hd_images.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/north_carolina_state_football_injury_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6428c71-84f7-4bb7-b9a7-3bc280b10951/porter_cable_air_compressor_parts_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/apowersoft_phone_manager_full_crack.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce1c354b-3c94-4a9f-9ac1-1759a37e37c3/hp_laserjet_p2055d_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b41aab2-d24b-4fa5-9d69-6f39117f704a/rijuxuvizeboxuwopomamunuf.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/89960095060.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/83077156470.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/attestation_de_formation_continue_psc1.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/36122197399.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/55800558477.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/cisco_collaboration_flex_plan_ordering_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/padak.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/bhojpuri_gana_dj_music.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/alan_watts_lectures_falling_in_love.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_off000105c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C2 5324 bytes
SHA-256: fe64abd8ff7770d54add934864cb02d9d893b3d120a85f51f419e9987056ed47
font_01_sfnt_off000117ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117ED 10428 bytes
SHA-256: a7956b62b57dbddf9cc33540ef97aedd2d9e8f3f250f093f3e4da92f22c22770

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