Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0fbd6a8735446ca…

MALICIOUS

PDF

78.5 KB Created: 2021-03-22 22:15:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: a46c74dcf611169826df61d4cb0839e4 SHA-1: ed85f2481f924987eadaaaee979fb82b0aaccd70 SHA-256: b0fbd6a8735446cae4e1ccb9c8a1c6ceb6b9c69516a90a7ffc2078ce9b0f02a3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://gimoguvi.ru/123?utm_term=lol+katarina+aram+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417422/normal_601c6a87e04ef.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/que_es_psicologia_gestalt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450417/normal_6046ade2451a3.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/rounding_off_decimal_numbers_worksheets.pdfIn PDF document text
    • http://xejitifuwoligaf.mypressonline.com/48892019332.pdfIn PDF document text
    • http://lonemap.medianewsonline.com/batutozatefodu.pdfIn PDF document text
    • http://bewizasosu.sportsontheweb.net/is_dmf_a_polar_protic_solvent.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373753/normal_5fd3175c272f4.pdfIn PDF document text
    • http://soluzixod.66ghz.com/diamond_tile_drill_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495400/normal_6035cc57c362b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417413/normal_5fcd7d2c391b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449789/normal_6012fdfee250a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vepuziv.epizy.com/android_auto_mazda_2.pdfIn PDF document text
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_71b1dd72957d40bbace233b3ffcbe74b.pdf?index=trueIn PDF document text
    • http://webewizago.epizy.com/behringer_inuke_nu6000dsp_review.pdfIn PDF document text
    • https://62dace35-232c-43a2-b3e8-6cf19ad57148.filesusr.com/ugd/42ae31_3e79740642604241965dd70e2717fe75.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c418ef9-3a6d-458b-93cf-0dd9510029e4/zolugob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/435f9a16-f1cb-4c9f-a60d-79da570b68dc/ge_indoor_timers.pdfIn PDF document text
    • https://e8f98835-b194-42a5-b43f-fe2f29920dd6.filesusr.com/ugd/bf650e_55c9dfbc7659497f8aef8a124182e610.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbf04532-d6cb-44a5-b151-35e5ecb64253/american_gods_season_3_episode_3_cast.pdfIn PDF document text
    • http://ruxexevomu.rf.gd/renuzub.pdfIn PDF document text
    • http://rozikumopimi.rf.gd/11509357226.pdfIn PDF document text
    • https://3c1efe6f-6e34-41bb-a2c4-2be85dd3cb33.filesusr.com/ugd/41f880_f97b925bda66409896b8c8e4b65ff511.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1e4c1a-cbb1-4d24-9577-f3d7ee337142/10511038409.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_off0000f1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A1 4972 bytes
SHA-256: c2db8b93e2f4a5364b923f4e292b381a1670718b370a2676f4ea8adf63194751
font_01_sfnt_off00010276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10276 15036 bytes
SHA-256: 9edd4a745eba4cedcc4b9e4a4ce520ac51d5f4b5fa43e4bd07c3a1539a37c11a

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