Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3298eab33c284a…

MALICIOUS

PDF

75.5 KB Created: 2021-03-02 15:46:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c5e5d7a106a249602e9717d83b345682 SHA-1: 3443ec79767f55c03a49f9f98dea12fd8357fdd4 SHA-256: ce3298eab33c284a4ee61836f73b2e2d24d04bcd7ae865417e6bf2c51e0d7784
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/wb?keyword=how%20to%20get%20started%20writing%20romance%20novels PDF link annotation
    • http://xeeewq.xyz/reading_comprehension_practice_test_1_answer_keyhbg9d.pdfIn PDF document text
    • http://chambrehub.xyz/40652744551s5dxc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426571/normal_6017c65033740.pdfIn PDF document text
    • http://cenderaoriginator.com/pontiff_sulyvahn_swordsfw26h.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/z9haChd/bixupekavuboloropobuxar.pdfIn PDF document text
    • https://cdn.sqhk.co/mewivupa/gMAKja8/happy_birthday_cake_candle_images_free_download.pdfIn PDF document text
    • http://tranquils.space/51791786564ad3nz.pdfIn PDF document text
    • http://jegexovavof.iblogger.org/bdo_caphras_stone_sheet_ap.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/PPkjaib/pro_evolution_soccer_2015_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajufevamofu.epizy.com/mackie_802-vlz3_review.pdfIn PDF document text
    • http://zepurudevivo.rf.gd/28194940159.pdfIn PDF document text
    • http://xapimiwosusuv.epizy.com/petta_audio_song_starmusiq.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/fillable_5e_character_sheet.pdfIn PDF document text
    • http://merizipu.rf.gd/4357409066.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/criminal_case_hile_apk_2019.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_off0000eaf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF7 5372 bytes
SHA-256: 93b40da02d89c0933a23f8e99822cf3eadc080ecf4e04e8f56c9b164e52638e9
font_01_sfnt_off0000fd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD43 10460 bytes
SHA-256: 01026046570d15343ea2e8467b657d5f61afebe7555466822d70419ffa3c6493