Malicious PDF — malware analysis report

Static analysis result for SHA-256 acfba7425c57b32a…

MALICIOUS

PDF

69.9 KB Created: 2021-03-02 14:50:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ca657ff1f4936242b20d44a839eda32d SHA-1: a78e8414195c36329026c9192547bcb12f002704 SHA-256: acfba7425c57b32a7b0c918b881bbf67db298bcb4feb0f6506b57cd13140a5f8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://naratejog.weebly.com/uploads/1/3/2/6/132682615/rodogobupize.pdf.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://soxebez.ru/wix?keyword=warship+craft+money+glitch PDF link annotation
    • http://vizimuvorogo.22web.org/division_decimal_by_whole_number_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/laripikiwafo/iI8hhJj/cyber_hunter_apk_obb_download_revdl.pdfIn PDF document text
    • https://naratejog.weebly.com/uploads/1/3/2/6/132682615/rodogobupize.pdfIn PDF document text
    • http://pepujolajerikur.66ghz.com/letefufikitin.pdfIn PDF document text
    • https://kevafesituwa.weebly.com/uploads/1/3/4/0/134040773/8682614.pdfIn PDF document text
    • http://zogasukod.22web.org/bodozabesowamidaro.pdfIn PDF document text
    • https://cdn.sqhk.co/pobijejok/wwtgehj/kenukugiravovu.pdfIn PDF document text
    • https://roxejozojone.weebly.com/uploads/1/3/0/9/130969259/kiripilitujowoti.pdfIn PDF document text
    • https://cdn.sqhk.co/safajoju/ii2gfQL/webnovel_beauty_and_the_beasts_chapter_115.pdfIn PDF document text
    • https://cdn.sqhk.co/jawefujivi/yjdhdgc/how_to_turn_off_roaming_on_iphone_6s.pdfIn PDF document text
    • http://nexekeb.iblogger.org/prime_factors_worksheet_year_6.pdfIn PDF document text
    • https://siputewebototab.weebly.com/uploads/1/3/4/4/134480832/watobukakegogid.pdfIn PDF document text
    • https://sodapovi.weebly.com/uploads/1/3/4/4/134494820/9574112.pdfIn PDF document text
    • https://cdn.sqhk.co/kubasovusi/geibVih/national_test_abhyas_app_download_for_pc.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/wifukedot/how_do_you_write_a_research_contribution_statement.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/king_size_comforter_sets_with_sheets.pdfIn PDF document text
    • http://mowilutom.epizy.com/eddie_bauer_stroller_carseat_combo_target.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/24073122774.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/jalikubo.pdfIn PDF document text
    • http://tivupomemotet.rf.gd/panasonic_bread_maker_recipes_sd253.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_off0000d531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD531 5544 bytes
SHA-256: f58f7ce374832b5a74ad11cc43eb0cd6cf43ccfca76dfe71e666fe713afdd348
font_01_sfnt_off0000e7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FE 10032 bytes
SHA-256: b7fbf88376c4b23a3495ee3295d4f445c102fdee96ab8a3e4920332bfeaa1d10