Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f64a7e7dad4f31b…

MALICIOUS

PDF

77.9 KB Created: 2021-03-14 03:01:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53a0d9866d9224b11544d8b9486c0a3d SHA-1: 57a6de00b26c19c6e0e98bb679fceb12c21ba37a SHA-256: 2f64a7e7dad4f31b559907c555024c87c70ec13c68195853e8de0edce347936c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL suggests a phishing or social engineering lure, aiming to trick the user into downloading a file. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/wix?keyword=download+chief+keef+finally+rich+zip+free
    • http://lamovingcompany.com/south_australia_tv_guide_todaydcp85.pdf
    • http://sellamorem.com/cloverton_a_hallelujah_christmas_sheet_musicse1jo.pdf
    • http://itawomen.fun/911443641952is2k.pdf
    • https://cdn-cms.f-static.net/uploads/4393763/normal_6031b05233fa3.pdf
    • http://mavpa.fun/what_does_a_boss_girl_meanlk579.pdf
    • http://lenugaguv.medianewsonline.com/89513539422.pdf
    • http://cabinetshq.xyz/the_one_thing_audiobook_mp3_download_free024s6.pdf
    • http://nesorus.mywebcommunity.org/7000309589.pdf
    • https://cdn-cms.f-static.net/uploads/4491173/normal_60482130368c9.pdf
    • https://cdn-cms.f-static.net/uploads/4369772/normal_600a57e3cb1c8.pdf
    • https://static.s123-cdn-static.com/uploads/4487658/normal_6003a0b8952b2.pdf
    • http://prestige-air.space/roman_numerals_to_numbers_worksheetelj3s.pdf
    • http://labiosdewonda.com/rurelifufibesoved23hrw.pdf
    • http://domainlimax.xyz/bikevexijulijipbwjf9.pdf
    • https://static.s123-cdn-static.com/uploads/4470979/normal_5fcf12ffce29e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/4118f320-6917-43fe-bbe7-406ed378f21d/texas_instruments_ti-30x_iis_exponent_button.pdf
    • http://vajapojaperusu.myartsonline.com/english_worksheets_alphabet_tracing_capital_letters.pdf
    • https://uploads.strikinglycdn.com/files/fde10401-db96-4610-8d57-3ced3a041bf5/fuwemebolop.pdf
    • https://uploads.strikinglycdn.com/files/7d38be5d-0510-4fb8-842b-1111f8c21ecd/lista_de_verbos_en_sueco_espaol.pdf
    • https://uploads.strikinglycdn.com/files/897daaf5-57df-42a1-b6ae-3c68b2e52001/cuisinart_bread_maker_cbk-110_recipes.pdf
    • https://uploads.strikinglycdn.com/files/9b6d6e4c-1b3a-43ac-96c9-9bc98d047005/xopunabatinufetuzoduxuso.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_off0000e6a1.bin
c6c2597aade6ea69a36197f6b5a46d0bb17c588d23c6e04bd9aafee2aa0e0f80
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A1 5372 bytes
font_01_sfnt_off0000f914.bin
0b7717ebe8122339a148dd39c872db4f71d1bbeb5420af81b272e5cecc44fbeb
pdf-font-stream PDF embedded font (sfnt) at offset 0xF914 15960 bytes