Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d4cab1d8afbbd21…

MALICIOUS

PDF

76.8 KB Created: 2021-03-15 14:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba2eb6f86a25f66586a32d2d5b7a5910 SHA-1: b71731771cd1ede37668711c71596dac555d04e9 SHA-256: 3d4cab1d8afbbd21155ffe796c3bbede03157f4c10b9682a4c83245cc3246531
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an embedded external URI pointing to a suspicious domain, and ClamAV detection confirms it is malicious. The document body, though heavily obfuscated, contains text that appears to be a lure for "hacks", suggesting a phishing or social engineering attempt. The embedded URL is likely used to host a second-stage payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=kaze+emanuar+hacks
    • https://cdn.sqhk.co/datimemovuko/SbkL1gd/18675384003.pdf
    • http://raisinsapp.pro/how_to_fix_a_leaky_delta_shower_handleeawj7.pdf
    • https://cdn.sqhk.co/sigidezok/xgdjbii/learn_python_for_free_with_certificate.pdf
    • http://good-production20.site/tp_link_router_archer_c59_manual5ms4p.pdf
    • http://instapodarok365.site/how_much_sugar_is_in_dunkin_donuts_pumpkin_swirlh4el5.pdf
    • https://cdn.sqhk.co/pesuxitum/iEggjjL/cymatics_hearts_2_free_download.pdf
    • https://cdn.sqhk.co/somepizeko/a1jjAij/gawixo.pdf
    • https://cdn.sqhk.co/xubafofin/jjj4Dgj/77547931546.pdf
    • https://cdn.sqhk.co/tufuboloruj/jiggfRx/10160051390.pdf
    • https://cdn.sqhk.co/pixorikibam/4ghjcYF/5897116497.pdf
    • https://cdn.sqhk.co/vapitinab/rgThehb/nobogutenavadaturukux.pdf
    • http://formulamoney.top/88420227378wr83a.pdf
    • https://cdn.sqhk.co/visobipibe/1dhcqhc/netflix_movies_apk_download.pdf
    • https://cdn.sqhk.co/zavilisuga/jd9A7e6/popular_star_wars_apps.pdf
    • https://cdn.sqhk.co/jibenapola/hbgjGiT/flying_car_robot_3d_game.pdf
    • https://cdn.sqhk.co/benibavagoge/ajjbhfe/53322281170.pdf
    • http://italywow.space/lord_of_the_flies_movie_1990_analysissed1b.pdf
    • http://my-favshopg.online/2004_johnson_outboard_manualop1fd.pdf
    • https://cdn.sqhk.co/zinazejoras/sjffCic/gesakad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/00524d4e-65c9-4650-8feb-750b63d29bb4/23982181491.pdf
    • https://uploads.strikinglycdn.com/files/d576a99f-d843-4e80-979b-4978bd13894f/fallout_new_vegas_nexus_mods_categories.pdf
    • https://uploads.strikinglycdn.com/files/f3596544-693d-4c44-a9f4-a9d4557a90ce/kitchenaid_superba_microwave_oven_combo_kaw38avm726.pdf
    • https://uploads.strikinglycdn.com/files/69a01ddb-7025-49b5-93ee-d30a1d6408af/modefa.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_off0000f0b4.bin
13d6e0aba60ef0c7ed295188964eeba29cf3de4d7515c9b0cc91534bfb4532cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B4 5092 bytes
font_01_sfnt_off000101e0.bin
fe0c348fc30a19ad548a8863c804e87b22f047fbb727a3d883b4135d94788a51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101E0 10928 bytes

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