Malicious PDF — malware analysis report

Static analysis result for SHA-256 53f2542e487e2779…

MALICIOUS

PDF

74.8 KB Created: 2021-05-09 06:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: cdc5b0de88f9cc8f78556c15cc24b6df SHA-1: 690abd58663b47d05056dd36d6d9a240101f5eb3 SHA-256: 53f2542e487e27797f7a264bc49d11223f13019c552badb4913f4c23bb23882e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains heuristics indicating it is a link farm designed to redirect users to external URLs, specifically mentioning a lure for 'Directv music channels free'. The primary malicious URL identified is https://xezojetit.ru/strik. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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/strik?utm_term=directv+music+channels+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393361/normal_6015d6625c80a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416504/normal_5feb0eee68de6.pdfIn PDF document text
    • https://cdn.sqhk.co/buvaboda/hejdhd4/61228425816.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/hc5gefF/stack_2d_images_to_3d_python.pdfIn PDF document text
    • https://cdn.sqhk.co/gebunemif/aigjhid/make_apps_a_list_on_apple_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/votawusebak/zji9sjb/skyscraper_room_escape_falling_from_the_sky_walkthrough.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465564/normal_5fe3e3a6be2af.pdfIn PDF document text
    • https://cdn.sqhk.co/fojilude/BChihcf/best_video_maker_with_music_app.pdfIn PDF document text
    • https://cdn.sqhk.co/wemulekojex/iiegc2J/wedotopapuxenafoxamovej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484807/normal_604b72b3835fc.pdfIn PDF document text
    • https://cdn.sqhk.co/fojevimexu/fgDqibH/viwuwotad.pdfIn PDF document text
    • https://cdn.sqhk.co/ridefapagol/cI7hbjd/yandex_browser_para_mac.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/b68f3d4c-0e1e-4f9f-ab87-8bc8c4a57497/nunitusoginasodemi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f25276be-7b25-40b3-bc77-5816cf4ffe85/hp_p3015_fuser_removal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04313b0b-ea5d-4f7d-8276-818754783e25/how_to_make_symbol_bigger_in_latex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66630f4d-203e-4067-bcf5-2ef682d2499d/16993353703.pdfIn PDF document text
    • https://198d5876-2e36-4a54-a59d-b4c1060b65be.filesusr.com/ugd/4733ca_86bb50f3c39e4cbea0602d01824a536d.pdf?index=trueIn PDF document text
    • https://5c90cfa9-af55-48e2-9430-1f3580382729.filesusr.com/ugd/e2b09b_5705ba9522ed41e0b7601bb18ddf95c8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5edf471e-2d6e-481a-953c-71ab6fd8cad5/nurufuxab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db2e7271-bc42-4f38-b29d-2b183c7a4597/the_monkey_king_4_full_movie_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d31da2d7-5d4d-473d-9887-2fbc4643880c/acer_aspire_e15_review_philippines.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_off0000e702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE702 5180 bytes
SHA-256: a7281e8beed346fd58675fe636cf0facd2f5302bc92ad9c273bea593ec0ac0f2
font_01_sfnt_off0000f884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF884 11000 bytes
SHA-256: 746591229da9c97bc3b5a58d3788dab2646f63c782d7c028876b34c84cb7dbfd

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