Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a1c90a69ffc516b…

MALICIOUS

PDF

170.8 KB Created: 2021-03-24 05:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9800dfad89d54e534e961d16297035b SHA-1: 6779a60f2661b6c0a94c20a0195a0f05ef25ed57 SHA-256: 0a1c90a69ffc516b671a7f1af2bd2848860782fea7eb9d91aa018f6aee6f00ea
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to a search query, suggesting a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://mezovuduw.ru/aws?utm_term=the+little+prince+story+summary+brainly
    • http://xakidofe.sportsontheweb.net/96881158413.pdf
    • http://bibopasaxuvibu.mypressonline.com/artikel_tentang_akuntansi_keuangan.pdf
    • https://cdn.sqhk.co/tidilotofuka/iijgWji/temporal_bone_dissection_guide.pdf
    • https://cdn.sqhk.co/zejegure/jdwfhcA/world_war_polygon_ww2_shooter_pc.pdf
    • https://xuniruki.weebly.com/uploads/1/3/0/7/130739043/8375302.pdf
    • https://gafalevomunu.weebly.com/uploads/1/3/4/2/134235362/a98fc9585c7.pdf
    • https://cdn.sqhk.co/rizijuwet/gdozjjV/29417392871.pdf
    • https://cdn.sqhk.co/piredonina/BrkdMjc/golf_impact_bag_fill.pdf
    • http://bukupiduge.mypressonline.com/zavonak.pdf
    • https://vibajadulefunuk.weebly.com/uploads/1/3/0/8/130874079/1c5a019c376.pdf
    • https://cdn.sqhk.co/nopavoboriru/rcSjamA/microsoft_stream_download_app_for_pc.pdf
    • https://cdn.sqhk.co/nilofixogezu/ic8gfhd/49523193720.pdf
    • https://cdn.sqhk.co/resozasevej/5hfijKe/pojoxiripipidurego.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://keregimuw.onlinewebshop.net/12617499648.pdf
    • https://uploads.strikinglycdn.com/files/3652553c-10cc-453e-8cf5-51b95be3d2f8/can_i_sell_my_amazon_fire_stick.pdf
    • https://uploads.strikinglycdn.com/files/102cfcd5-6242-4393-9d1a-7884b084fb23/how_to_use_keurig_mini_coffee_maker.pdf
    • https://uploads.strikinglycdn.com/files/233a6633-9c50-475c-95c3-a2b17d4313fe/levovexukasusejeseki.pdf
    • https://uploads.strikinglycdn.com/files/20b8a789-53ae-4a41-aca9-8b0a7fc7a82c/goflex_home_hard_reset.pdf
    • http://pezamax.myartsonline.com/vuwusigoruvabifuwutobas.pdf
    • https://uploads.strikinglycdn.com/files/4ca040e1-11cb-4e15-993c-b5267e61b880/guvozevarozi.pdf
    • https://uploads.strikinglycdn.com/files/adb20a01-0253-47d5-b12e-266dcab222aa/gozizekinakawurugaganu.pdf
    • https://uploads.strikinglycdn.com/files/72b9bafb-0835-4132-a903-02a66b3580b5/maluxapizavosolekimimogel.pdf
    • https://uploads.strikinglycdn.com/files/929b0f1d-954f-449e-904a-05a3a740a0ce/how_many_amps_does_a_charger_use.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002383d.bin
bea0803eaa42f6dae8fd064872765e64823654aa992dc103973701b712d4336c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2383D 5704 bytes
font_01_sfnt_off00024c17.bin
889b5b49f65d6c5a5f0b2ba01713101410e946057a3aa7c1c9bcd86e30aa0de9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C17 5244 bytes
font_02_sfnt_off00025db8.bin
c4aa17adba1a36fb56f654946371aa6fda3f5e33176399bc9d9ae8ae113b1d53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25DB8 16332 bytes
font_03_sfnt_off00028e8a.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28E8A 4324 bytes

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