Malicious PDF — malware analysis report

Static analysis result for SHA-256 193aede4f2d28d93…

MALICIOUS

PDF

77.3 KB Created: 2021-04-07 07:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e03fcf9d2d94bb33df67b453cccf7d1d SHA-1: 7f0e0077adf0e3f5dcedeff255e412104b5cb115 SHA-256: 193aede4f2d28d93e8c8ae66b555e4eb927c3d7a8a55716bdfbce97d589da723
206 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The presence of a 'prayer line' lure in the document body and the high ML classifier score indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pelibifir.ru/strik?utm_term=andrew+wommack+prayer+line PDF link annotation
    • https://cdn.sqhk.co/fiseguvugele/ghfzvha/kenogudevibunugu.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/yjeonO5/jurassic_world_the_game_mod_apk_hack_download.pdfIn PDF document text
    • http://vekuzebis.22web.org/43772011398.pdfIn PDF document text
    • https://teparapilaw.weebly.com/uploads/1/3/4/4/134477765/tapemuteka-vefupafapamem-bovirugesiket-vadizewoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487663/normal_602d486701cc1.pdfIn PDF document text
    • https://cdn.sqhk.co/dizukenepu/dqU52jf/3d_surround_music_player_pro_free_download.pdfIn PDF document text
    • http://mon-compte-cmb.best/film_basara_heroes_24fn6e.pdfIn PDF document text
    • https://cdn.sqhk.co/vabalogu/a65icFC/cleaner_for_whatsapp.pdfIn PDF document text
    • https://wurotifaji.weebly.com/uploads/1/3/4/3/134315076/b90795383ac9f.pdfIn PDF document text
    • http://pinerapidsrr.com/apple_store_walt_whitman_mall_maplw298.pdfIn PDF document text
    • https://cdn.sqhk.co/jigitovewuk/LCgjdha/pencil_box_kannada_film.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453740/normal_5fd968a15c5a6.pdfIn PDF document text
    • http://arenda-comp.space/popofonazaratif9w7.pdfIn PDF document text
    • https://cdn.sqhk.co/rivinodati/DLhhidx/amc_models_for_sale_hemmings.pdfIn PDF document text
    • https://cdn.sqhk.co/laxegipo/Oidqjc0/tft_set_4_warlord_item.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bosulug.epizy.com/event_management_html_template_themeforest.pdfIn PDF document text
    • http://rixuzomobe.epizy.com/36368584237.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_off0000ead9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD9 5288 bytes
SHA-256: b0267d48466cb357fb60f9989137c053010ccc113d6db32915a3ebbd8317caf3
font_01_sfnt_off0000fcd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD5 13232 bytes
SHA-256: 549a5cffcd2b7a1757a9bc5d114fb2909eaeb2b46cd275e12bd6e71eefbb26b0

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