Malicious PDF — malware analysis report

Static analysis result for SHA-256 804d2164d34a9354…

MALICIOUS

PDF

75.3 KB Created: 2021-03-17 23:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: a9afcc4520c5ff86e36433f733c63537 SHA-1: db16abd1eccd9673fe4e4836663e251482fc04e5 SHA-256: 804d2164d34a9354c2c8206db3d42a56b32db2e12c0e68202fa032f2733b1564
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious SEO redirector, likely used for phishing or malware distribution. The embedded URL 'https://xezojetit.ru/123?utm_term=calledout+music+my+prayer' is a key indicator of this malicious intent. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a harmful resource, potentially for a free download scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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://xezojetit.ru/123?utm_term=calledout+music+my+prayer PDF link annotation
    • https://cdn.sqhk.co/jidelugob/gc7ZHjd/gunshot_wound_hand_icd_10.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/ibhhxgf/king_followers_and_likes_latest_version_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mamozinuba/RuD9Iig/fafivaziri.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486193/normal_5fe5d4621a6b0.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/heifwM3/pickme_driver_apk_7._2.pdfIn PDF document text
    • http://virutezofulodud.iblogger.org/kenmore_front_loading_washer_error_code_le.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497695/normal_601a31c61a430.pdfIn PDF document text
    • https://cdn.sqhk.co/suxavawudomo/jiiaPjb/noaa_hourly_weather_forecast_seattle.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/900c3ef0-7347-4a02-a44c-6e6ca8e7f6db/jomemepebidifipam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0642acb4-b77b-4fdd-8f58-ccdc3a04e5b4/44978294574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f718f1e-60fa-4378-a207-7ed906e8fb05/comtrend_ar-5381u_quick_setup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddb56cae-fdbf-4862-b3a4-2af473a9361a/xobobuwuzodegidofojekasus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1338bc37-2750-49b1-bfef-87c1f4f42439/stephen_hawking_quotes_funny.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/373becae-c80f-43b9-a7fa-12b94f93ba1d/how_to_make_a_vrchat_world_public.pdfIn PDF document text
    • http://losaxoxajav.epizy.com/18436975359.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00c9815b-20bc-41b7-a1ea-14387d9a7f6a/g-shock_rangeman_gw-9400-3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/443728cc-2d83-4d8b-a833-167c65103d50/how_to_fail_visual_field_test_for_blepharoplasty.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e704ba9-5813-4b0f-93f7-20db29c399ba/criminal_justice_behind_closed_doors_actors.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_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 5228 bytes
SHA-256: 5821fc7457f8628279808575a677a245907d76c073fddf04dbb4242cb2e7cbec
font_01_sfnt_off0000fb47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB47 10900 bytes
SHA-256: d3d08d15f4e2e22dfcb16f9b5ab8023bf8803834fbe836742be1010a0e322db3

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