Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ac964440bdb33a…

MALICIOUS

PDF

73.4 KB Created: 2021-02-12 01:45:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fcb42d8ff60a60d1ff6a8ed7a3702e4a SHA-1: f5f62b7dc47f33f76d24ffc5845608a2f7363b13 SHA-256: 01ac964440bdb33a113b0e96a016fb99651c2cf74679afe50366f7945dad15d2
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to 'bologen.ru', which is likely part of a phishing lure related to 'Google apps setup'. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=google+apps+setup PDF link annotation
    • http://xewixejixukumes.22web.org/mac_spoofing_android_without_root.pdfIn PDF document text
    • http://guwodela.iblogger.org/37037686591.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/LhaNiaC/witupepitujexidiranefefu.pdfIn PDF document text
    • http://kagotigidiwijar.iblogger.org/63508107495.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxafopagad/9LjjgcD/93574137737.pdfIn PDF document text
    • https://cdn.sqhk.co/nixibaraje/mjcggKq/xisupilanotife.pdfIn PDF document text
    • http://pasetbs.xyz/bootstrap_3_form_button_inlinepsa7r.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/djjM0we/37543652562.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/jezekemunidup/synaptics_pointing_device_driver_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/portable_dvd_player_reviews_consumer_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/vlc_video_player_for_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/bualuang_securities_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/caesar_and_cleopatra_play.pdfIn PDF document text
    • http://safodur.epizy.com/atos_administrativos_mapa_mental.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/aisi_lagi_lagan_mp4_video.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/equivalent_fractions_fraction_wall_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/jurulegesugisixaso.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/keyword_research_for_seo_the_definitive_guide.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_off0000d6fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6FD 4652 bytes
SHA-256: 8200b5f46985b7fb3bc1c48e0a9a023f0aea21462081aaccf52594397f65c4f7
font_01_sfnt_off0000e6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6EB 10264 bytes
SHA-256: c8817e6beb08f83c71a7a3db3d2a4d0d1d9f3dabd4c5f49bb0cade1e667fe85a
font_02_sfnt_off00010a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A21 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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