Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a0db6ea2c1a7333…

MALICIOUS

PDF

64.8 KB Created: 2021-01-24 16:55:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fe42c9cc7fa044414232692b220b7427 SHA-1: b78eba69fe65f21cf55f3a8514e6b4cf975f177e SHA-256: 3a0db6ea2c1a7333a5df822abce33afe1e45daeed38dff804a7abdc151db5869
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jacksth.ru/wb?keyword=super%20slide%20water%20slide%20costco PDF link annotation
    • https://cdn.sqhk.co/wusakituzu/6W1ggww/hit_or_miss_girl_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tufuboloruj/kp1jaXN/smash_2_dlc_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/zoturisa/jcn0waH/xigevezof.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/nzzCjir/best_ps4_rally_game_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/jTjjmhh/stickman_ninja_legend_shadow_fighter_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/tefebenum/i1PagBQ/rekamixinasesibujez.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/pokorevalaxex/alpsankhyak_scholarship_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/kekipurufogusetatir.pdfIn PDF document text
    • http://kegunujav.epizy.com/beginners_guide_to_wordpress_seo.pdfIn PDF document text
    • http://pasazaxara.rf.gd/38446251521.pdfIn PDF document text
    • http://rolexewosuvasu.epizy.com/mamaferorikam.pdfIn PDF document text
    • http://koxaxinum.epizy.com/17881777782.pdfIn PDF document text
    • http://sumorililuduj.epizy.com/16946610867.pdfIn PDF document text
    • http://laxuraxosolun.epizy.com/14175975401.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/jatumafugumufakimep.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_off0000bec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEC2 5264 bytes
SHA-256: 1647aff868aa02d4d08fd175d3d07e6a78b73193430099b3414e39247b6a4b84
font_01_sfnt_off0000d0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C3 11308 bytes
SHA-256: ffc8d43250ae4e62c668aa3729a36915b24fb92b17ed4aa74501b5534a0d80bf