Malicious PDF — malware analysis report

Static analysis result for SHA-256 77590f627f6a3446…

MALICIOUS

PDF

65.3 KB Created: 2021-02-22 23:18:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 20dd16930ac35288d02b5cd910236ad9 SHA-1: 5c3e50c7abe38d3a7547e734e28e772d03deb5af SHA-256: 77590f627f6a344657359cd810a51d27b569cb4af08857d4913e914a223014d7
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://jottigo.ru/wix?keyword=stealth+hunter+1+unblocked PDF link annotation
    • http://drnextact.xyz/44825946909e97x7.pdfIn PDF document text
    • http://sportplays.ru/air_cooled_chiller_maintenancez67tv.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/fojSXLN/ruxojezukamanevigukixina.pdfIn PDF document text
    • http://jerunurijo.iblogger.org/24009281211.pdfIn PDF document text
    • http://parrrtner.xyz/ruwokovuvojanivevirosenag9eirp.pdfIn PDF document text
    • http://bestplacefor.rest/zilosafelobujijole7dpjw.pdfIn PDF document text
    • https://cdn.sqhk.co/wusezofetib/hjdghHx/cheats_for_minecraft_pe_0._14._0.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/iii7Hje/betazawepozewolinelovof.pdfIn PDF document text
    • http://lemoxovuv.22web.org/suzedivufo.pdfIn PDF document text
    • http://rujawobezixevib.iblogger.org/zinukobutozimukanala.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/36uihMX/77855680406.pdfIn PDF document text
    • http://podarokinsta.site/fulurudovev0u8yl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498893/normal_6007505b4849f.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuzajomugi/fOjdRmJ/fruit_slices_for_slime.pdfIn PDF document text
    • http://feyakast.online/mine_lyrics_the_mayries7wwnt.pdfIn PDF document text
    • http://wasodez.22web.org/calaveras_county_fire_information.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tedusola.epizy.com/lizizadisepuwi.pdfIn PDF document text
    • http://pogedezibak.rf.gd/libilulasubuxusofesisito.pdfIn PDF document text
    • http://xugonapo.rf.gd/36612669537.pdfIn PDF document text
    • http://kirigawegugava.epizy.com/english_tests_with_answers.pdfIn PDF document text
    • http://babudenipovux.rf.gd/letter_from_birmingham_jail_crossword_answers.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_off0000c4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B4 5208 bytes
SHA-256: c4143da5489df189e610b5797c2921a332d021321445ea7a121b633fe38b2603
font_01_sfnt_off0000d65f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65F 9860 bytes
SHA-256: bdcea5c0cb70cfb966c16f02357a28049f360090c24014a6a99404dd007f9249