Malicious PDF — malware analysis report

Static analysis result for SHA-256 a55ce766f5cf5519…

MALICIOUS

PDF

85.6 KB Created: 2021-03-15 06:24:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: f7c325aa34ba6ba95d26107b753bac94 SHA-1: b13ce155eac03a92ba17512eb060e184fe8160ac SHA-256: a55ce766f5cf5519aa0fec0cfacc6a7f38de56eaf8a3c0746268dc54120daaa9
136 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Mandy blank cause of death' and a high-confidence heuristic indicates it links to an SEO redirector for phishing. ClamAV also detected it as Pdf.Phishing.Trojan. The embedded URL https://nipisod.ru/wix?keyword=mandy+blank+cause+of+death is the primary indicator of the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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://nipisod.ru/wix?keyword=mandy+blank+cause+of+death PDF link annotation
    • http://feldhaus-klinker-plitka.ru/all_clad_7_qt_slow_cooker_aluminum_insert_replacementngtge.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/gijepamokugarijato.pdfIn PDF document text
    • http://persequenteamsohbet.com/muxezefinagowaix5ec.pdfIn PDF document text
    • http://fafikup.scienceontheweb.net/mitologia_griega_y_romana_j_humbert.pdfIn PDF document text
    • http://mizifasurogik.mywebcommunity.org/85192126606.pdfIn PDF document text
    • http://healsmall.space/business_management_quizlet_chapter_10s10r.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/hBjjxgi/primitive_survival_tool_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/gikazijegut/gfDhdig/bariyan_song_video.pdfIn PDF document text
    • https://cdn.sqhk.co/sururezog/w7jbxnS/rejovewadisulomot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kubowulurarekij.myartsonline.com/mukajonotutulime.pdfIn PDF document text
    • http://gidubabe.myartsonline.com/aircraft_mechanic_salary_in_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/2011_maserati_granturismo_convertible_owners_manual.pdfIn PDF document text
    • http://nozezuwaxufudeb.epizy.com/93972792528.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/nofutoso.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/liribof.pdfIn PDF document text
    • http://zizematav.epizy.com/xevugav.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/60135586850.pdfIn PDF document text
    • http://tapopopabe.rf.gd/biruxibezixekopepezurizu.pdfIn PDF document text
    • http://xekurenu.rf.gd/98308889648.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/tylenol_infant_dosing_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/harrisons_principles_of_internal_medicine_twentieth_edition_vol.1__vol.2.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/25156428380.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/72878710089.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_off00010182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10182 3772 bytes
SHA-256: 983e3243200bbe54de2a383602940878ea6b21fd80b3b40183d32fd158edc5fa
font_01_sfnt_off00010efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EFB 5324 bytes
SHA-256: 0f4d8ee623601d4ab87bc37f6707bb25093fd1754991a33101d9d1a7347bc462
font_02_sfnt_off00012128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12128 11592 bytes
SHA-256: 58f47a032e9667866100d786c9819e0d20ef4e86416d583f3cfdbb578cff2654

Open this report in the interactive analyzer, or submit your own file for analysis.