Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dcaa46f095f9268…

MALICIOUS

PDF

82.1 KB Created: 2021-02-17 11:43:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 54e666b1e8f76ded2ad7a73361cb7c0b SHA-1: 5dbb18a5682f891a6b96fd3a5f17fcf3cf423fe8 SHA-256: 3dcaa46f095f926882f1fd2fc3a358228fafe9ba72404b14dacda9c38977aa76
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/strik?utm_term=what+do+i+do+if+my+hp+printer+won%2527t+print PDF link annotation
    • https://cdn.sqhk.co/dagufiwus/aheRijE/vanaxaboxil.pdfIn PDF document text
    • https://cdn.sqhk.co/kefekawit/gifjinF/xosuroninu.pdfIn PDF document text
    • https://cdn.sqhk.co/dutebosatu/hhjeMhf/mupexawutotewivudexob.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/JYdaDii/picture_perfect_crossword_chapter_11.pdfIn PDF document text
    • https://cdn.sqhk.co/wibetaxor/je5alji/vupativuzesepuwo.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/iTwibjb/28078443921.pdfIn PDF document text
    • https://cdn.sqhk.co/mokevesin/CibjcuK/college_championship_football_game_tonight.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/gfZigBd/kpop_random_dance_bts_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/tevitogaperu/EgdhbwF/merge_airplane_virus_shooting_idle_tycoon.pdfIn PDF document text
    • https://cdn.sqhk.co/nexetifosam/5ygdijZ/starlink_coverage_map_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mokixetat/koxawetowajefamo.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/91222371556.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/psoriasiform_dermatitis_icd_10_code.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/86026463948.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/couple_lovers_pic.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/types_of_piercings_fight_list_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/a_monster_calls_script.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/assamese_song_2019_new_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/5559416378.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10491 5312 bytes
SHA-256: 99cec5353f69dcb61d676fe4ebc40ebfb6cdc95c9681897c7c5b38726b28d863
font_01_sfnt_off000116a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116A1 10776 bytes
SHA-256: 9815e0779c4df18f9ddfd08e445566482525ce6169e95ebf942f2aa1cf714efd

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