Malicious PDF — malware analysis report

Static analysis result for SHA-256 93aa49a813c91380…

MALICIOUS

PDF

74.5 KB Created: 2021-02-10 17:30:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: abdb307f7ffd506f38e402fc73121fdf SHA-1: a89b4044cb971dce545fe2456485d2eb5fe8c255 SHA-256: 93aa49a813c9138037f18a0f7eee2f63dacd208b2846cfd7618376fc95c3a86b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/aws?utm_term=cho+gath+jungle+guide+s8 PDF link annotation
    • https://cdn.sqhk.co/gexopoku/jijelcw/top_ten_free_ringtone_apps.pdfIn PDF document text
    • http://ritixabig.iblogger.org/bread_slicer_knife_with_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450037/normal_5ff9a77686a32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466413/normal_5fde7e6da65f6.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/jgez7tl/siren_sound_effect_virtual_dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380525/normal_5fd09e41693a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486748/normal_5fd09f87f34ae.pdfIn PDF document text
    • https://cdn.sqhk.co/kejaxedusuk/8ifiaIn/rogufutowawopajixeg.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/MhipQif/4_pics_puzzle_guess_1_word_level_35.pdfIn PDF document text
    • https://cdn.sqhk.co/wofetewa/jinjf64/automatic_background_changer_website.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408355/normal_601b0851196ac.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/does_burlington_coat_factory_have_formal_dresses.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530151/normal_5fdf71a23bc10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489976/normal_6020771f37b20.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/3RicfTJ/43024472774.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417321/normal_60000d097d20f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490918/normal_601e92823bd99.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bawilifugoxak.epizy.com/japan_guide_kanazawa_castle.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_off0000e4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D3 5164 bytes
SHA-256: 6ea4fc44cbfe0d28431cb9347b529112bde00b4635327231ca78a81b089ec880
font_01_sfnt_off0000f65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65D 11564 bytes
SHA-256: 64119edd86283d979219a5ee3d6b1c6a7830d2ed59428f10a8c59fa270a85aa1