Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd1eb851ffd49f4…

MALICIOUS

PDF

80.9 KB Created: 2021-02-16 00:40:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4c182ed9e1f314f2977a3d7fdb22876f SHA-1: f617d9f567963742c18a2f54f3db21defac5ee0d SHA-256: 7fd1eb851ffd49f4cedf9d27dbdf02680590b9df0ea3792dc2ae77aa5947dc32
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://seumenha.ru/strik?utm_term=the+five+love+languages+book+online PDF link annotation
    • https://cdn.sqhk.co/jemajujo/gijigjv/roblox_piggy_book_2_chapter_3_release_date.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466659/normal_60095f08d17ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408188/normal_602251ebc9e06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471691/normal_600e0c08400e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459935/normal_60012c4b70907.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/JhcWgdD/xajokag.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/0gjijjh/best_free_hd_wallpapers_app_for_android.pdfIn PDF document text
    • http://xozoxas.iblogger.org/time_pass_song_djpunjab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_601cadbba4d06.pdfIn PDF document text
    • https://cdn.sqhk.co/lukedivibeb/Thdahar/38636359859.pdfIn PDF document text
    • https://cdn.sqhk.co/tezuzerise/2ievihT/kusokojovebozuji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370051/normal_5ff0f811e501d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/libeganot/micro_segmentation_gartner_report.pdfIn PDF document text
    • http://fezipowivi.rf.gd/naronesiwulovo.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/38492001826.pdfIn PDF document text
    • http://judewal.rf.gd/26706663882.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/firofutusiwanujup.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/bounded_sequence.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF329 4948 bytes
SHA-256: 39a612e92f54fe84c5532259cdf0fde76e4c1d03ece431d9c6ef41a07d26904e
font_01_sfnt_off00010402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10402 10520 bytes
SHA-256: 399aa1cfb11270e46d85a29653a01ec4ef7dfe86ac1e681063bbedda22e52994
font_02_sfnt_off000127e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127E7 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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