Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a1e526d48e4e34…

MALICIOUS

PDF

70.3 KB Created: 2021-05-31 22:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ba4b027ec9af1de596e0ccf2b5d0101 SHA-1: 9f5c5f78c6c67fdd4460f6324191665171ad41bd SHA-256: 30a1e526d48e4e3483261e2b80d192748350989cb98d9dc69f6ee5ac81a6bf81
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a page with search terms related to 'offshore structural engineering', suggesting a lure to trick users into downloading further malicious content. While no scripts were directly extracted, the nature of the PDF and the embedded URL strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

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://huntic.ru/pbw?utm_term=offshore+structural+engineering+dawson+pdf
    • https://cdn-cms.f-static.net/uploads/4473056/normal_6058a9ce41eba.pdf
    • https://static.s123-cdn-static.com/uploads/4459645/normal_5fcb3f570c500.pdf
    • https://static.s123-cdn-static.com/uploads/4413835/normal_5ffab399da7f7.pdf
    • https://fukopimuwevi.weebly.com/uploads/1/3/5/3/135351499/7ab89a9e33.pdf
    • https://static.s123-cdn-static.com/uploads/4381105/normal_5ffc873a25133.pdf
    • https://sewimumox.weebly.com/uploads/1/3/4/6/134668968/638129.pdf
    • https://dijafujuzu.weebly.com/uploads/1/3/4/3/134369935/3f83a5f5.pdf
    • https://zefufewik.weebly.com/uploads/1/3/4/3/134374544/3114159.pdf
    • https://cdn-cms.f-static.net/uploads/4465688/normal_6059f7c727ee7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mumubib.pbworks.com/w/file/fetch/144416769/pentatonic_chord_progression_piano.pdf
    • http://wamotarirup.pbworks.com/f/how_to_cite_two_footnotes_in_one_sentence.pdf
    • http://lakebimutep.pbworks.com/w/file/fetch/144418053/how_do_i_get_a_single_status_certificate_uk.pdf
    • https://uploads.strikinglycdn.com/files/0124f00b-2353-403a-a25c-3994af9e91c3/fender_princeton_chorus_manual.pdf
    • https://uploads.strikinglycdn.com/files/7120edb0-eb40-4938-bf3f-c4b55a38fe7f/lapurovigogaka.pdf
    • http://kedetuwi.pbworks.com/w/file/fetch/144414036/corel_draw_x7_setup_free_download_full_version_with_keygen.pdf
    • https://uploads.strikinglycdn.com/files/c4d2c53f-59dc-4137-8ea2-326dd1b381c7/33242198440.pdf
    • https://uploads.strikinglycdn.com/files/96b3b24d-8010-4a16-adb7-b442884b6294/84537339499.pdf
    • http://lijegazoz.pbworks.com/w/file/fetch/144414237/17188455202.pdf
    • http://jajisaparev.pbworks.com/w/file/fetch/144418245/long_vowel_worksheets_for_first_grade.pdf
    • http://niwomif.pbworks.com/w/file/fetch/144424557/coordinate_plane_word_problems_worksheets.pdf
    • http://kufujibumufa.pbworks.com/w/file/fetch/144411858/troy_bilt_5500_watt_generator_troubleshooting.pdf
    • https://uploads.strikinglycdn.com/files/708f6e3a-6b03-4290-aed4-508dd59d9949/zojusobiximosodovujigox.pdf
    • http://funinupun.pbworks.com/f/online_live_tv_software_free_download_for_pc.pdf
    • http://sizolasipape.pbworks.com/w/file/fetch/144422367/direct_and_indirect_expenses_meaning_in_hindi.pdf
    • http://nigezid.pbworks.com/w/file/fetch/144423516/ammo_49_dl_answers.pdf
    • http://rugewenuzed.pbworks.com/w/file/fetch/144423066/wugisixezenikowuvepevil.pdf
    • http://palixazoke.pbworks.com/f/metefif.pdf
    • http://wejojixi.pbworks.com/w/file/fetch/144423687/fidelity_net_benefits_phone_number.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d772.bin
5f6752b39c2b62b32f5dd9a102830c083c68c947fe2d3483ab5ca87a992b41ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD772 5536 bytes
font_01_sfnt_off0000ea55.bin
8eb3debe2afa66848436bbc890565b8aeb15e5d3082f6ecf705233777e0169be		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA55 9768 bytes

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