Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aee5bc78b9e8bad…

MALICIOUS

PDF

88.0 KB Created: 2021-03-07 23:39:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 985d93e1c37c53872dc1fdd00974bdfe SHA-1: 3bcde47e7006f3b45fbeb141724c245bb5a95df8 SHA-256: 8aee5bc78b9e8badbe55fd9b3f236172ee717eee0250430effcb561d58aeb1aa
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 0.9997

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://druttle.ru/wix?keyword=free+musically+fans+app PDF link annotation
    • https://cdn.sqhk.co/vomawoko/cIfggIr/81845260174.pdfIn PDF document text
    • http://sejanagewo.iblogger.org/slide_designs_for_ppt_free.pdfIn PDF document text
    • http://qiwi-wallet.online/573311402237n23b.pdfIn PDF document text
    • http://swiss-gear.store/budagobolamojunij0nhy7.pdfIn PDF document text
    • http://disclosures.space/qcy_t2c_release_datem264w.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/jjjGjhY/fewetinin.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/e1ihThf/walking_dead_cast_season_1_episode_2.pdfIn PDF document text
    • http://biolinkus.me/bolo_de_chocolate_simples_forma_grandejwt0h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tifuponakeg.epizy.com/church_information_system_open_source.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/how_to_open_stack_on_gun_safe_without_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/anbanavan_asaradhavan_adangadhavan_full_movie_tamil.pdfIn PDF document text
    • http://jedovimesize.epizy.com/33627354883.pdfIn PDF document text
    • http://tekisinasapev.epizy.com/vidas_secas_filme_completo_youtube.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/what_is_an_easy_keto_breakfast.pdfIn PDF document text
    • http://suzusufiwavel.rf.gd/afrikaans_full_movies_free.pdfIn PDF document text
    • http://gemuviwir.rf.gd/appoint_company_director_form.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/direction_de_l_adquation_formation-_emploi.pdfIn PDF document text
    • http://wubixulazig.rf.gd/bed_sheets_set_queen_size.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/schlotzsky_s_nutrition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/jegexowenas.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000105e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E4 5216 bytes
SHA-256: 44c3a39c16ec17553e610b749553c06d6ba651430f8b549c3a095d2d3a3bc9fd
font_01_sfnt_off0001179a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1179A 10784 bytes
SHA-256: e13114ee24c414fb8b2820149140ae2003913077ea7e65a7db93f66c5eb7fd96
font_02_sfnt_off00013c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C7D 16312 bytes
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939

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