Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e539aae3a80aaa2…

MALICIOUS

PDF

100.2 KB Created: 2021-04-12 18:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 1f9609fbf606726a1023ea0977b575a1 SHA-1: 6589042a945b2a0533feaefda8bdd265a3a0d32b SHA-256: 1e539aae3a80aaa2327f7abb9c8985ddccdbc021abeb3dbeb6f5dd2e32e505cc
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?utm_term=fluke+microscanner2+cable+verifier+%25E0%25B9%2580%25E0%25B8%2584%25E0%25B8%25A3%25E0%25B8%25B7%25E0%25B9%2588%25E0%25B8%25AD%25E0%25B8%2587%25E0%25B8%2595%25E0%25B8%25A3%25E0%25B8%25A7%25E0%25B8%2588+%25E0%25B8%25AA%25E0%25B8%25AD%25E0%25B8%259A+%25E0%25B8%25AA%25E0%25B8%25B2%25E0%25B8%25A2%25E0%25B9%2580%25E0%25B8%2584%25E0%25B9%2580%25E0%25B8%259A%25E0%25B8%25B4%25E0%25B9%2589%25E0%25B8%25A5 PDF link annotation
    • http://vopibuxipem.22web.org/cheadle_and_marple_sixth_form_college_ofsted.pdfIn PDF document text
    • http://warajuvevuv.medianewsonline.com/36164583948.pdfIn PDF document text
    • http://verenica.net/artificial_intelligence_companies_in_americau0n3j.pdfIn PDF document text
    • http://gibelineg.sportsontheweb.net/palidafujulopi.pdfIn PDF document text
    • http://life-news.tech/462933359034l8ql.pdfIn PDF document text
    • http://detozube.scienceontheweb.net/49787695130.pdfIn PDF document text
    • http://wemufonenirivor.22web.org/32511133720.pdfIn PDF document text
    • http://niburufajanuto.sportsontheweb.net/pominininuv.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nutimuratibuzur.epizy.com/19836836555.pdfIn PDF document text
    • https://4c2674ec-1430-4cec-a455-d6a35d10586e.filesusr.com/ugd/38955b_4065a2c946164ffcbcb64f4f0196a659.pdf?index=trueIn PDF document text
    • http://ribagapiwog.epizy.com/autocad_free_download_for_windows_7_32_bit_filehippo.pdfIn PDF document text
    • https://dc6b22d1-fd3c-476a-b8f1-b0505981f591.filesusr.com/ugd/ab5adf_a867ae27bfa1445abe60f6d9303fd600.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xuzed/best_r_programming_books_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/google_arcore_android_6.pdfIn PDF document text
    • https://d8d691c7-cf48-432b-bece-a54604b57851.filesusr.com/ugd/1e3a4b_94fec6bca4d8477ea7158752a8ed3e36.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/background_music_free.pdfIn PDF document text
    • http://tatoguninorevem.epizy.com/cas_model_lp_1000_manual.pdfIn PDF document text
    • http://zoloraliri.epizy.com/wenadugokugavogika.pdfIn PDF document text
    • https://18aefb47-0221-41c7-ace0-4f78eb33e730.filesusr.com/ugd/bca722_e988a66012a24946bddb49d78b9f61d1.pdf?index=trueIn 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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000115cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x115CF 16356 bytes
SHA-256: bc1b508710efb6b91c1e5026284a42ea2ea71055141399410fd43141a8624fec
font_00_sfnt_off0000ec02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC02 5376 bytes
SHA-256: defbc3440a88bcce1cf382ddfa910b80a71a3f2ca2ea853805ada762ea84f047
font_01_sfnt_off0000fe40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE40 8808 bytes
SHA-256: f95f0d0611cdf3bb884b739a51a9963234d61b2cbeb58660ea6b3c7bf28c930c
font_03_sfnt_off00014305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14305 10928 bytes
SHA-256: 94ae913238c0054ccdd404850d10d3c7da49648f5c20bb2da44154810b72328f
font_04_sfnt_off000168bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168BB 16216 bytes
SHA-256: e2e3d1051de8ddbff4c5403344dce7147ee707e0457668c585c9d9eaba6b6284