Malicious PDF — malware analysis report

Static analysis result for SHA-256 7846642c17119250…

MALICIOUS

PDF

69.4 KB Created: 2021-02-25 13:25:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3cd0f954429ac90cf6d4c6d84caf6cfb SHA-1: 40487d196eaef64c9d11231da40c4305896e3e7a SHA-256: 7846642c171192502ad39d36a442820f315c6d9c59ea15fbfc5fd973ee01cba4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=stihl+ms250+zama+carburetor+kit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388174/normal_600adbe2560d7.pdfIn PDF document text
    • http://zathkatow.xyz/binilikiburawowem06rv.pdfIn PDF document text
    • https://nusupubibirimu.weebly.com/uploads/1/3/1/8/131871553/beduw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404105/normal_601081c1a1174.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485313/normal_5fd7a1bb53da5.pdfIn PDF document text
    • https://gumosoxegobekij.weebly.com/uploads/1/3/3/9/133999275/dudezu-morinuwabi.pdfIn PDF document text
    • http://bas-vorota.ru/amazon_photos_apple_tvun1vl.pdfIn PDF document text
    • http://topdiscount.pro/fifubupubitazirujesotofmyza.pdfIn PDF document text
    • http://keto-menu.online/sazekololobajua9cm.pdfIn PDF document text
    • https://galinigogazefu.weebly.com/uploads/1/3/2/6/132695851/d3d73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454541/normal_5fe30a885dda9.pdfIn PDF document text
    • http://faxusupovetek.sportsontheweb.net/how_to_get_a_leek_item_in_pokemon_shield.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/non_emergency_police_omaha.pdfIn PDF document text
    • http://my-favshop.online/windows_10_activator_kms_autoiplml.pdfIn PDF document text
    • https://piwomokoxik.weebly.com/uploads/1/3/5/3/135335333/vigugo_fadojiwizekup_wifoxesuwub_wilesalaraz.pdfIn PDF document text
    • https://wemakevarovafa.weebly.com/uploads/1/3/4/6/134636541/panenixup_posukesojom_gusisa.pdfIn PDF document text
    • https://nimekeboxiz.weebly.com/uploads/1/3/0/8/130873861/sekebasaj.pdfIn PDF document text
    • https://zapubotugor.weebly.com/uploads/1/3/4/6/134635013/adfcd45e.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/7399552202.pdfIn PDF document text
    • http://momarivido.mypressonline.com/56812107512.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tokit/adobe_photoshop_apk_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/fepofodukavibufososowewuj.pdfIn PDF document text
    • http://bogalibamadom.myartsonline.com/12925552658.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_off0000cf5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF5F 5792 bytes
SHA-256: ea4eff964127169044cea43a37e2f371d928d1f743a62060101c1fb4285fa45b
font_01_sfnt_off0000e2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F2 10324 bytes
SHA-256: a45e8780e0cfefc285632e2a2d5fad6ddb1f2e4ab235ed4e625f48fa192eea4a

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