Malicious PDF — malware analysis report

Static analysis result for SHA-256 b72404eb559755b2…

MALICIOUS

PDF

72.3 KB Created: 2021-02-25 15:29:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 2880fa387c85c48e03d0c0ca4b6313b6 SHA-1: 042f9ed720b829043ea04df4aff5ab0a38de3675 SHA-256: b72404eb559755b258e4d8f5d775130ecba6d3051c2c5d6e2fff0d878efe9875
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://baarspo.ru/award?keyword=2009+victory+vision+repair+manual PDF link annotation
    • http://reduslim-italy.site/human_pedigree_analysis_worksheet_answers665ta.pdfIn PDF document text
    • http://mon-cmso.best/how_to_open_a_sentry_safe_cash_boxc83ns.pdfIn PDF document text
    • http://jidugisukeranav.iblogger.org/java_64_bit_latest_version_free.pdfIn PDF document text
    • http://nororom.iblogger.org/89054575543.pdfIn PDF document text
    • http://rentline.pro/22184635807qwm2n.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/what_god_says_about_mother_in_laws.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/percy_jackson_and_the_olympians_movie_series.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/UFjfgiy/my_touch_smart_digital_timer_instructions.pdfIn PDF document text
    • http://terogit.iblogger.org/briggs_and_stratton_vanguard_16_hp_oil_change.pdfIn PDF document text
    • https://mibirewisurux.weebly.com/uploads/1/3/5/3/135313447/rizutafuluvoz.pdfIn PDF document text
    • https://cdn.sqhk.co/matelasoguje/hiQ7Fgd/80450795771.pdfIn PDF document text
    • http://berkeciftci.net/62939664133j4n5.pdfIn PDF document text
    • https://jiduwaramusova.weebly.com/uploads/1/3/4/8/134854614/308204.pdfIn PDF document text
    • https://cdn.sqhk.co/tobowovum/jSgdZig/puduk.pdfIn PDF document text
    • http://juwupexutaval.mywebcommunity.org/lowes_kitchenaid_electric_cooktop.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/42909004760.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/50ifkUd/is_football_master_2020_an_offline_game.pdfIn PDF document text
    • https://bogigevaruzo.weebly.com/uploads/1/3/4/4/134435623/8274871.pdfIn PDF document text
    • https://leliwigozamik.weebly.com/uploads/1/3/0/7/130738568/4260852.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/kupabanenosomovasoguli.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://josatagosovux.rf.gd/31596767736.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_off0000db57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB57 5576 bytes
SHA-256: 63aeaa11b5ac32c5e6b15b765bca561be4eba94a80bff5deac0b9190ab929cc1
font_01_sfnt_off0000ee3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3F 11116 bytes
SHA-256: 48d8ce6a96c8775933b68aca8e3888b8667afc56e21636af8ec1d05215e5197f