Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd0ca4f2e0b9a66…

MALICIOUS

PDF

84.8 KB Created: 2021-04-14 05:33:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: caa94576c25e835075616f6e57303b4c SHA-1: 2e0827404abe289e61b969c45ee909a1efb7bd1e SHA-256: 3cd0ca4f2e0b9a662ddfc54f68efc42685b27da506d85397b126eac258febbcb
96 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to 'https://zajinet.ru/strik?utm_term=amc+10+2020+pdf', suggesting a phishing or credential harvesting attempt. The document body, though heavily obfuscated, contains text related to 'Amc 10 2020 pdf', likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://zajinet.ru/strik?utm_term=amc+10+2020+pdf PDF link annotation
    • https://cdn.sqhk.co/xavaxonad/VijvhgI/22912382594.pdfIn PDF document text
    • http://naturalik.fun/jewawijubujceoyf.pdfIn PDF document text
    • http://titanovyi-filtr.ru/nissan_service_engine_soon_light_codesf6f2q.pdfIn PDF document text
    • http://biolinkus.me/psychoanalytic_perspective_psychology_definitiontwpoy.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/Rhgshc9/81507628992.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/hjhiihf/vuvulajakorufix.pdfIn PDF document text
    • https://cdn.sqhk.co/tiluzegata/Ihdjjgg/match_3_offline_games_for_pc.pdfIn PDF document text
    • http://spoonnumberone.xyz/four_personality_typess8785.pdfIn PDF document text
    • https://cdn.sqhk.co/nezipumosot/haPEign/car_wallpaper_hd_for_iphone_xr_red.pdfIn PDF document text
    • http://flowerport.store/rolled_ice_cream_nyc_near_meruaav.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/xufoxorog/2019_chrysler_pacifica_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/61848048579.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/muzatarosasovogabalam.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/harry_potter_1st_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/how_to_dance_like_elvis_hound_dog.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/22016746235.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/63041318927.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/anti_malware_cleaner_free.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/new_bengali_movie_hd_mkv.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/beaglebone_black_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/belajar_coding_lewat_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/anna_thammudu_old_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/android_9_dark_mode_emui.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/faremuzujebepi.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/17589454228.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_off0000fa65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA65 4424 bytes
SHA-256: 108f9a487de6cc816f645ab3d6bef6ed5432a7702d54390d2a240bd51c666502
font_01_sfnt_off0001096e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096E 13308 bytes
SHA-256: 9aaa325441220084f50bbc9d9b15cb586cdf863741a282418398b68eb002c4f1
font_02_sfnt_off00013618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13618 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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