Malicious PDF — malware analysis report

Static analysis result for SHA-256 e812bc5d5c707777…

MALICIOUS

PDF

75.6 KB Created: 2021-03-24 21:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46c90089b132540b69a037a77f3e0222 SHA-1: 761d30f4a68f5e4d9c3f06bbc6a0043d6064bb2c SHA-256: e812bc5d5c70777770513d2a4f168aa55ac0c12c8f1f9220a72f3b4a15b95cf7
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The embedded URL points to a suspicious domain, likely serving as a lure for the user to click and download further malicious content. The document body, though partially corrupted, contains text related to the lure, suggesting a phishing attempt.

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://xezojetit.ru/strik?utm_term=ubiquiti+loco+m2+access+point+range
    • https://cdn.sqhk.co/gutemokerezo/sjggigi/zawiruniraseteju.pdf
    • https://cdn.sqhk.co/zubavagi/5UT4F2K/samsung_internet_browser_history_timestamp.pdf
    • http://kopolade.22web.org/que_es_el_sistema_inmune_y_como_esta_conformado.pdf
    • https://cdn.sqhk.co/pemiduwegam/etrgjYS/59834371893.pdf
    • http://goldenframecollision.com/maps_navigate_u0026_explorejxc7w.pdf
    • http://instapresent.site/mukitoviro6lhnn.pdf
    • https://cdn.sqhk.co/nivavepe/Cif2jif/target_dollar_deals_online_shopping.pdf
    • http://3203epworthcres.com/what_kind_of_oil_goes_in_a_2006_honda_odyssey_2007_takebb8bf.pdf
    • https://cdn.sqhk.co/gexedamej/z1heIPk/survivor_adventure_survival_island_mod_apk_revdl.pdf
    • http://italiahot.fun/3125394954lobg0.pdf
    • http://shoplus.info/kenmore_elite_washing_machine_code_f024ahuf.pdf
    • https://cdn.sqhk.co/fonowatusopu/kS1GidU/basha_tamil_movie_hd_video_song.pdf
    • https://cdn.sqhk.co/kanemili/jdjgggc/microban_24_hour_spray_amazon.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c8d81e97-a39a-4d7c-a3f4-c4603ea5ea86/the_witcher_books_good_reddit.pdf
    • https://uploads.strikinglycdn.com/files/b3e69fc7-871b-4415-9475-9575583127cb/51541389456.pdf
    • https://uploads.strikinglycdn.com/files/8ef61832-5e99-4a28-afde-0006690aacb2/masukumuniremiwidi.pdf
    • http://jofitulalidu.rf.gd/jj_lin_lyrics_na_xie.pdf
    • https://uploads.strikinglycdn.com/files/e3d0b75a-bf22-4943-ae24-bedefe36557e/what_are_the_national_occupational_standards_for_teaching_assistants.pdf
    • https://uploads.strikinglycdn.com/files/dba924c2-04ae-42b4-b77f-a1873be631cc/ruxenekurixuwimu.pdf
    • https://uploads.strikinglycdn.com/files/b37a5547-c504-4375-a4da-a7a2ec39d434/fifty_shades_freed_full_movie_download_movie_flix.pdf
    • https://uploads.strikinglycdn.com/files/0ba38da7-03d9-40ac-8a01-bb824570b8d4/invitation_to_psychology_7th_edition_isbn.pdf
    • http://muwusub.rf.gd/obusforme_highback_backrest_support_review.pdf
    • https://uploads.strikinglycdn.com/files/2ab93451-00d4-46a0-8b30-72c46f6a16a1/elementary_spelling_inventory_words_their_way.pdf
    • http://lopusenegi.epizy.com/favijelijus.pdf
    • https://uploads.strikinglycdn.com/files/547970e8-8e91-4330-af76-cb1368eed648/i_spy_with_my_little_eye_meaning_in_french.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_off0000e7f0.bin
2273ea2b0eec9b5c70ffc93199c34695efd945650db6da111d4655b2b3c98e85		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F0 5640 bytes
font_01_sfnt_off0000fb0c.bin
4c4bf560d032fd12f9746afc9fe34872baf135b6cedea43f295b816e62cba9f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0C 11024 bytes

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