Malicious PDF — malware analysis report

Static analysis result for SHA-256 349b940262044e2b…

MALICIOUS

PDF

86.7 KB Created: 2021-03-29 21:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 67f1a645754b616776aad38cdbb088e1 SHA-1: fca85b98c6675136cfb47028bd5e905fed42b943 SHA-256: 349b940262044e2b1998bb68975b295d8e95f1f1cd3ddfce6b5b138d68b2b4de
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-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://fokemale.ru/award?keyword=bruun+hot+wire+anemometry+pdf PDF link annotation
    • https://cdn.sqhk.co/tekuligote/ieiichh/candy_movie_2020_soundtrack.pdfIn PDF document text
    • https://cdn.sqhk.co/sururezog/ghghihT/kowavifimoduxasuwuk.pdfIn PDF document text
    • https://cdn.sqhk.co/kelulegawi/dies1VB/realmcraft_with_skins_export_to_minecraft_on_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475875/normal_5ffbe1340f498.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvebopeweb/eytpa9W/my_etisalat_afg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485589/normal_5ffe87c7c7229.pdfIn PDF document text
    • https://cdn.sqhk.co/dakagugi/jidkf6J/zombie_apocalypse_unblocked_games_6969.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428341/normal_5fecff112e265.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490252/normal_602e448c490bd.pdfIn PDF document text
    • https://cdn.sqhk.co/kutagigixef/ibotthb/aqw_chaos_slayer_class_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502188/normal_60043f0663a17.pdfIn PDF document text
    • https://cdn.sqhk.co/gapekozuwa/fFiaqia/red_and_blue_states_map_2020_today.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382771/normal_5ffbcd90d4cb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372080/normal_5fe80898e82f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6561a8c5-8620-4dc4-ac5b-f65e7a796614/how_to_get_revelation_ffxiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67414c0b-a79a-4e3f-a54e-341a32a2686a/speed_queen_front_load_washer_ff7_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ab8aac1-17ff-471e-9f80-0b4a0a74e063/how_much_is_one_percent_of_facebook_worth.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_off0001165f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1165F 5312 bytes
SHA-256: 0b1bab367ba18a0843aca538aedee888fb2efbcb9e9fbdea58b43e6e018f4a14
font_01_sfnt_off00012865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12865 10904 bytes
SHA-256: 7ede01f1287b29a21346cd4ef29cec4a0241f9fbe0eb78962a735c563196c1b2

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