Malicious PDF — malware analysis report

Static analysis result for SHA-256 803bfd3f3d619422…

MALICIOUS

PDF

80.9 KB Created: 2021-06-06 19:19:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: ed345c3eff8a43851fa84d668d0c3c5e SHA-1: 95313f366e20019031797bd0bd9ff36efba34b4f SHA-256: 803bfd3f3d6194229b49eb976edfaaf73a554bbaf2f030eaf9f4707cfa9dfa6d
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI pointing to a suspicious domain, which is likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an embedded URL suggests the document is designed to redirect users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://coretry.ru/pbw?utm_term=best+town+hall+six+base+clash+of+clans PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369769/normal_606221477d2e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446045/normal_6026b422e71a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492529/normal_601f81301c407.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497697/normal_605d88d5c8733.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496389/normal_5ffddb050dd5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408475/normal_6061310897c39.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xesimisejek.pbworks.com/w/file/fetch/144644295/42432515694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4070970e-752c-4403-9259-ec5daf8aa93b/fipapakugesuxiwuxuro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7e320d0-d4f0-4868-94b0-3bebb6fb8334/28289300161.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f98a65b-a52a-4e02-8535-f739562a3e90/my_singing_monsters_hack_unlimited_diamonds_apk_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b32f4efa-8c7d-4583-aa6f-5ba4a481ecaa/is_sonic_cookie_dough_safe_to_eat.pdfIn PDF document text
    • http://tovovojufa.pbworks.com/w/file/fetch/144734445/39052281201.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a15041-bfcb-4bd9-ae34-bd23832fa8b9/fifty_shades_of_grey_2_full_movie_in_urdu_language.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f59efc8-46df-453e-93d0-d564fcf8ee41/what_are_the_different_types_of_narrative_structures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a4d20b5-9617-4434-a41b-ad09ca45c0e9/how_to_cook_costco_ham_with_glaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be18a4ad-1faf-415c-86a6-aa8c9c3f46f0/4473060924.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe0d2023-1063-4c99-8352-03abfa45f761/troy_bilt_pony_engine_turns_over_but_wont_start.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b5c37c5-2f60-47dd-9ba3-889f334af126/tuwubeguluvusiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/640f3dc1-9d3d-4d39-becf-dc2277a25c4e/nalulejuzizaraz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c62bc293-e5f4-436c-b38b-06a5c14d7d76/how_to_tell_if_oil_furnace_ignitor_is_bad.pdfIn PDF document text
    • http://favixose.pbworks.com/w/file/fetch/144553968/ahsan_ul_kalam_free_download.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_off0000fdb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB9 5220 bytes
SHA-256: e8d6b3c261cf62a7752119443d40e542d87fc873b4a6f6f1283827e6d3c7d85a
font_01_sfnt_off00010f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9C 11340 bytes
SHA-256: 40fe0c1b13acc47de2f058a22dc94091ccc6707fe97129251c752baf1d85f552

Open this report in the interactive analyzer, or submit your own file for analysis.