Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aeefa06b48e8c8d…

MALICIOUS

PDF

71.8 KB Created: 2021-02-19 23:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dc4d1156011b2400e41d538558abd31a SHA-1: 2e0fd09f11704549cbdab43938f457b0028227a9 SHA-256: 5aeefa06b48e8c8de8635566a71271fef7fa4b44883d18e9969759b1cdb4523f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=multiplayer+for+minecraft+apkpure In PDF document text
    • https://static.s123-cdn-static.com/uploads/4379237/normal_5fdd74bf0fa21.pdfIn PDF document text
    • http://mysteps.online/adobe_premiere_pro_2019_free_download_mac53mpv.pdfIn PDF document text
    • https://cdn.sqhk.co/beledufe/felgiji/tunnels_trolls_solo_adventures.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/53192552924vvdgs.pdfIn PDF document text
    • http://sukujemegamog.22web.org/honda_accord_android_auto_update.pdfIn PDF document text
    • https://vonewujin.weebly.com/uploads/1/3/1/3/131380349/1511395.pdfIn PDF document text
    • http://nudukuju.22web.org/id_card_template_word_landscape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450240/normal_6028809851cbc.pdfIn PDF document text
    • https://piworanup.weebly.com/uploads/1/3/2/6/132681558/pokoxasudab.pdfIn PDF document text
    • http://kifenefazujiz.iblogger.org/35264895721.pdfIn PDF document text
    • https://ruzuxopamekegi.weebly.com/uploads/1/3/4/7/134748505/73c1dc67b.pdfIn PDF document text
    • http://xekuluw.iblogger.org/inglourious_basterds_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/lukedivibeb/E3oiejd/kenavebepasesopefidowi.pdfIn PDF document text
    • http://crawlmqyu.space/campbell_biology_10th_edition_dog1m5c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465142/normal_60089f0418c66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413975/normal_6021e97465c63.pdfIn PDF document text
    • http://xorelurisadadun.iblogger.org/dosufirorowujutanofe.pdfIn PDF document text
    • http://educationonline.website/marry_me_perfect_wedding_day_reviewxavb3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tizavoju.rf.gd/92470435599.pdfIn PDF document text
    • http://tajazeruviv.rf.gd/ability_one_compliance_manual.pdfIn PDF document text
    • http://lojofoverom.epizy.com/isth_guidelines_lupus_anticoagulant_testing.pdfIn PDF document text
    • http://jipinasin.epizy.com/blank_august_2019_calendar_printable.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_off0000dd68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD68 5152 bytes
SHA-256: 8ed0fad4d1216270dccc7a2e6c292f579dbc4f2304fe500f3ef6544c75f53a0a
font_01_sfnt_off0000eef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF6 10268 bytes
SHA-256: c28879a44e3c082350c2701adfe49e06aeff876d49d7a06d8694271a3f6392f7

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