Malicious PDF — malware analysis report

Static analysis result for SHA-256 841da4c7475d5fa8…

MALICIOUS

PDF

116.2 KB Created: 2021-03-18 11:50:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b1ff0e905332f04bea65c8d23d3576a SHA-1: 7462656ba92c37cfeb5661a7c7cec9def7da52dc SHA-256: 841da4c7475d5fa85c7f3913e85039f7dd0d3babe18ea1d13cb06ab8fcfc2bde
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the document content suggest it's part of a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=australia+cricket+logo+pdf
    • https://cdn.sqhk.co/fowipovoji/h9toK5O/23086760490.pdf
    • https://cdn.sqhk.co/jizuxadif/ajfjcjf/7769326456.pdf
    • http://awpmode.com/synonyms_and_antonyms_for_ssc_cg15qkm.pdf
    • https://cdn.sqhk.co/rurewemanavi/zhqvhhO/gorillaz_songs_2020.pdf
    • http://felesatediz.medianewsonline.com/mokovetinubobe.pdf
    • http://vutisonoj.sportsontheweb.net/sisaf.pdf
    • http://jotodavusugiga.iblogger.org/cancer_de_garganta_por_vph.pdf
    • http://proflist-barnaul.ru/marvel_encyclopedia_new_edition_20198x2j5.pdf
    • http://fesotisifofil.mygamesonline.org/20535033199.pdf
    • http://winoxolupuvil.getenjoyment.net/engineering_drawing_n3_textbook_free_download.pdf
    • https://cdn.sqhk.co/jevamivuvugi/xOhgEif/princess_makeup_salon_game_free_download.pdf
    • http://artistichomesolutions.com/what_goes_with_navy_blue_suit_jacket8u96a.pdf
    • http://sipipewawezizuf.getenjoyment.net/34669115731.pdf
    • https://cdn.sqhk.co/kamozipu/SyN7uie/wallpaper_hero_mobile_legend_hd_terbaru.pdf
    • http://nominasacra.ru/clash_royale_cards_in_order_of_releasenccck.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://samesesodore.onlinewebshop.net/sedekobujapedimefegefike.pdf
    • http://juxudawalugevop.epizy.com/french_reading_comprehension_worksheets_free.pdf
    • http://tuwewigeniwaf.rf.gd/11273806306.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000189a2.bin
6549bd96a996b6f0f2bc5fbfd20758b88a47b3f1d2e7a28ba7aadeaa000e9f43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x189A2 5376 bytes
font_01_sfnt_off00019bfe.bin
19ba279c3e252b938cab64a8f18a3db3f51d8fc76c13d9b828fa5661e2e35d72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19BFE 11432 bytes

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