Malicious PDF — malware analysis report

Static analysis result for SHA-256 e93e72780b2a206c…

MALICIOUS

PDF

157.9 KB Created: 2021-03-13 22:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 0c148ed425bcef11d28f1172f71045f4 SHA-1: 2dd4547d96afa7936e2bfab9d00e5ea235152a11 SHA-256: e93e72780b2a206c3ee9de97b6b5ba4397333405b351dc328fef68c527aa5d68
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains and link farms, suggesting an attempt to redirect users to malicious content. The document body, though partially corrupted, includes a title that appears to be a lure for a religious text, likely to entice users to click on the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://resalured.ru/strik?utm_term=maha+ganapati+stotram+telugu+lo PDF link annotation
    • https://cdn.sqhk.co/jiwonukunav/f1wAkia/14141739519.pdfIn PDF document text
    • http://thecaffeinatedstudent.com/57161378318mbsnl.pdfIn PDF document text
    • http://lumacy.site/the_elements_of_moral_philosophy_chapter_1rgx79.pdfIn PDF document text
    • https://cdn.sqhk.co/zarifabidit/ha7eheA/rodaziwigimobinenesanoku.pdfIn PDF document text
    • http://sy0n.icu/wililezufefentbn.pdfIn PDF document text
    • https://penotogales.weebly.com/uploads/1/3/1/4/131438478/netuzu.pdfIn PDF document text
    • http://reduslim-officialsite.site/how_to_make_a_3d_vr_videolrhrs.pdfIn PDF document text
    • https://cdn.sqhk.co/dewufidabo/8Jiiygg/tolafo.pdfIn PDF document text
    • http://tinivoze.22web.org/42405854094.pdfIn PDF document text
    • https://cdn.sqhk.co/letojeka/ifohejb/predator_fishing_boat_portpatrick.pdfIn PDF document text
    • http://copyrightsupporteds.com/63726585356egzdt.pdfIn PDF document text
    • https://zavigajigufuf.weebly.com/uploads/1/3/1/6/131637719/8e209.pdfIn PDF document text
    • http://hamsterbig.com/442536732934bayd.pdfIn PDF document text
    • http://startbastar.online/percy_jackson_sea_of_monsters_hulu_release_dates1meg.pdfIn PDF document text
    • https://jumabesabixoduz.weebly.com/uploads/1/3/4/3/134368642/45ed7ed.pdfIn PDF document text
    • http://cafe-cok.ru/woraj3qk83.pdfIn PDF document text
    • https://cdn.sqhk.co/naketego/RZ8Q6jW/how_to_use_disney_frozen_ice_cream_maker.pdfIn PDF document text
    • https://cdn.sqhk.co/jigitovewuk/6iek9gi/49005674482.pdfIn PDF document text
    • https://wixevilit.weebly.com/uploads/1/3/4/8/134873569/104890.pdfIn PDF document text
    • https://cdn.sqhk.co/lewikokezina/gjw4KaR/download_animus_harbinger_mod_apk_revdl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://jasegefisef.rf.gd/american_gods_season_2_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18439 5240 bytes
SHA-256: 36b1d9df87ac736c78f27a47ec1c53a6c42511db530cd27ca842f44438abdce7
font_01_sfnt_off000195ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x195ED 102480 bytes
SHA-256: 7629bc6a8e15a43a3f5284811846859e49aad29e4b476ed58b1b1c731952a90c
font_02_sfnt_off000245eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x245EB 9648 bytes
SHA-256: 8c271fd2f5bab10fb2cf12caad61e323a7f3977c4ad99780e05569800f555ced

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