Malicious PDF — malware analysis report

Static analysis result for SHA-256 c40b3dc0c9add090…

MALICIOUS

PDF

74.5 KB Created: 2021-02-12 03:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 00dfda5ee26ba2bd3ef71ee33d820f7f SHA-1: c4051ec4e11a349d76913fb3a7d8430206dbffc3 SHA-256: c40b3dc0c9add090de0c48117e5fd56dac1f15791c8afb0a99d111870fbef831
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. The document body, though heavily obfuscated, contains text that could be interpreted as a lure to entice users to click the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://baarspo.ru/wb?keyword=a%20current%20affair%20reporters PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4500904/normal_6024f8d6a5f2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380675/normal_600da67532ebc.pdfIn PDF document text
    • https://cdn.sqhk.co/xogedusov/ibib0ig/rapid_racer_products_proguard.pdfIn PDF document text
    • http://legendarycraft.ru/pexsacmelebi_gamowerit_tansacmeli1z43w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375515/normal_600de00ee6040.pdfIn PDF document text
    • https://cdn.sqhk.co/padirazemi/oA3ChiK/fizat.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/hdifBrA/waduvonatonuki.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/v2hfoib/69693689639.pdfIn PDF document text
    • https://cdn.sqhk.co/gubisagebuto/1iegghc/how_to_draw_a_cute_ice_cream_bowl.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/ijcsp34/14665343068.pdfIn PDF document text
    • https://cdn.sqhk.co/rafumufo/ifkuhj1/30288786969.pdfIn PDF document text
    • https://cdn.sqhk.co/lagazowasobo/jagpM5I/second_hand_clothes_stores_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/ggjggh2/60179160688.pdfIn PDF document text
    • https://cdn.sqhk.co/kitolitik/aiilPhh/febime.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/f9ihpgg/telegram_and_gazette_telephone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/tajavujexiz/R2yjghh/fopovozupapi.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/ighggjf/fashion_tycoon_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/basinasedu/gecgeij/best_sports_games_for_nintendo_3ds.pdfIn PDF document text
    • https://cdn.sqhk.co/dasisogi/fSifhfI/45738185323.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/dJbc4mU/how_to_recover_my_old_photos_in_friendster.pdfIn PDF document text
    • https://cdn.sqhk.co/dowotovewi/iegS8Zt/stickman_fight_badlandz_battle_royale_games.pdfIn PDF document text
    • https://cdn.sqhk.co/papebikuwi/ojiJxb5/tornados_food_shop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392868/normal_5fcd0123c7b91.pdfIn PDF document text
    • http://hamsterbig.com/pixel_station_iosv81k3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e720.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE720 4968 bytes
SHA-256: 4b4d8676c50de585b1fe156d923b47e3a9ecd6d042b8bf9ae36721478ad02342
font_01_sfnt_off0000f818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF818 10648 bytes
SHA-256: 91948000ebf8ef98ca90391a0681fef18218c8e528651663525f45a1d333a74b

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