Malicious PDF — malware analysis report

Static analysis result for SHA-256 26afc5dff8f277ed…

MALICIOUS

PDF

80.4 KB Created: 2021-02-14 02:11:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: d5339e3e0269f98f4f51ee346c6eab3d SHA-1: b0790561c84c47d5ea3b7daa5668e279c7841977 SHA-256: 26afc5dff8f277ed3c65031d5c87f28aac99b5d14c91c89906e7c71642ca3280
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'technological products'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware delivery attempt.

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/123?utm_term=clasificacion+de+los+productos+tecnologicos PDF link annotation
    • http://dorightschool.com/46897615386kz4gm.pdfIn PDF document text
    • http://psychologyrelax.xyz/xidadadosumomazopatirus10yk7.pdfIn PDF document text
    • http://jakartapro.xyz/disney_plus_hulu_live_bundle_pre_orderl9urc.pdfIn PDF document text
    • http://temilops.xyz/picsart_background_full_hd_wallpaper7nxjm.pdfIn PDF document text
    • http://lovechat24.club/catholic_encyclopedia_19130fxoi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5fda67268175b.pdfIn PDF document text
    • http://fawetugamuxix.66ghz.com/watch_bein_sports_free_on_android.pdfIn PDF document text
    • http://ketrovk.xyz/34763849493s0h1e.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/NlgdnsN/fuxupenogolapenofovone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412768/normal_6020c8c8a4bce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411917/normal_60249339c5d6d.pdfIn PDF document text
    • https://cdn.sqhk.co/kojetovukufo/dBXsGAk/84014394083.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476301/normal_5fed3600eb5de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393180/normal_600d7c32901ec.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/kewuxejikiwe/vivegam_full_hd_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/solavefafopoxofotebifuv.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/capecitabine_cardiotoxicity-_case_reports_and_literature_review.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/velocity_vs_time_graph_acceleration_worksheet.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE523 5228 bytes
SHA-256: cf285f053573e6ec0cb3163975cf23c5643e8d9ba1c89773b85d96fea94a5e30
font_01_sfnt_off0000f6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F9 11424 bytes
SHA-256: 23124451552f126a20b0f5fb76617d900a48170066e85756aae293f009343605
font_02_sfnt_off00011c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C69 16248 bytes
SHA-256: cacce353daa52449aaa2dc03ff14e12d7f37b8e2e541d6bae97b449db5f5a003

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