Malicious PDF — malware analysis report

Static analysis result for SHA-256 6089822275942896…

MALICIOUS

PDF

78.3 KB Created: 2021-03-06 02:12:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c455999ef933e98d5c1b2a33dea95810 SHA-1: a5593f32da88f7bd0f4622840033c0bc9db7189b SHA-256: 60898222759428964b759cd1584e9fed3dfd9181ba4801d66a0515d178eb51fc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/strik?utm_term=into+the+wild+jon+krakauer+synopsis PDF link annotation
    • https://cdn.sqhk.co/soziwariru/6IgcWib/siwetagon.pdfIn PDF document text
    • https://cdn.sqhk.co/tivanosox/ghP8fhi/buwedamukaguziregidemo.pdfIn PDF document text
    • http://lessonsonline.site/2215557968t75k2.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/jkghmih/world_hockey_championship_2019_live_scores.pdfIn PDF document text
    • http://vkrowl.com/diy_home_renovation_for_beginnersbebex.pdfIn PDF document text
    • https://cdn.sqhk.co/xitilesuxiw/DgeBEKZ/fexibikasemafinupin.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/ehdT7he/dice_tower_diy_wood.pdfIn PDF document text
    • https://cdn.sqhk.co/lisakopew/VxTZThf/commanders_palace_brunch_reservations.pdfIn PDF document text
    • https://cdn.sqhk.co/doginifa/ZBLiaYP/mortgage_calculator_with_pmi.pdfIn PDF document text
    • http://mailedflkf.site/lomejazanevejen4bdl.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/haoPQgi/22695166062.pdfIn PDF document text
    • https://cdn.sqhk.co/rosojolude/4ifWiju/free_wifi_hotspot_app_for_windows_10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0db35c8e-352b-4b7b-827f-df61c88acfc2/how_to_contact_facebook_support_team.pdfIn PDF document text
    • https://70848fb0-0fd0-490a-9360-2ffa38fc212c.filesusr.com/ugd/08e331_462ec109ae2249098eff235788a95365.pdf?index=trueIn PDF document text
    • https://8316a071-1c81-4729-bbc9-bb84f51c1359.filesusr.com/ugd/b2ba6b_a34bb4d3f581464f9d67c5cc8adeff7a.pdf?index=trueIn PDF document text
    • https://1618b3f4-dcc0-4047-a816-eeb1cbe43c51.filesusr.com/ugd/a01749_b01fcaf704dc4b8bb476515749b9f029.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2c1e1ae-3cc5-48bd-927c-4fdc867e1b46/what_is_the_theme_of_the_novel_esperanza_rising.pdfIn PDF document text
    • https://580b68e3-2104-4118-ae5b-4f285de1c062.filesusr.com/ugd/dad7b5_c5a5489269714b7fb35b6304ff4a6df0.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E6 5316 bytes
SHA-256: 2d95a930c6b028316bafc51305addce7543d106480d1e2fee7320ce3032474be
font_01_sfnt_off00010408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10408 11916 bytes
SHA-256: e30d162b8933d81d83cd3167395dad2618cdf949fe6d2aa9dea22a1eddb8bcda

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