Malicious PDF — malware analysis report

Static analysis result for SHA-256 1638936b36962930…

MALICIOUS

PDF

72.9 KB Created: 2021-03-06 01:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f3362da9ba0b06223355c67a8f37b175 SHA-1: 5b2ce3fa2d866da558bf9fa9c9c7e1195e9f1b3d SHA-256: 1638936b3696293019826e05809dcb51e6ddfc1ff176dcf18699cf7b4ce5555b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://nipisod.ru/award?keyword=how+to+fix+an+lg+dishwasher+that+won%2527t+drain PDF link annotation
    • https://cdn.sqhk.co/dibitarebizu/vvfQjfy/tejapapolu.pdfIn PDF document text
    • http://prazdnikprosto.ru/why_is_my_dolphin_pool_cleaner_not_workingsfypu.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/QijfZif/mercantilism_in_the_colonies.pdfIn PDF document text
    • https://rudarizegofuk.weebly.com/uploads/1/3/4/3/134355262/mejozitovesi.pdfIn PDF document text
    • http://prodit.space/europe_front_full_2._3._1hy0gv.pdfIn PDF document text
    • https://lefilima.weebly.com/uploads/1/3/0/7/130775934/xozuvorawowix.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/who_is_the_oldest_kpop_idol.pdfIn PDF document text
    • https://xolijusir.weebly.com/uploads/1/3/4/0/134016651/2641121.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/icPPek2/1946211975.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/YKijctD/lefizikuxifajomotu.pdfIn PDF document text
    • http://arthromedshop.xyz/7158377439uduxw.pdfIn PDF document text
    • https://tekudijasefemo.weebly.com/uploads/1/3/2/7/132740256/kujonigo.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwafuwawen/1gF1d5w/bobadewid.pdfIn PDF document text
    • http://xolokeminapi.getenjoyment.net/how_long_to_study_to_pass_pmp.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/82633156050.pdfIn PDF document text
    • http://bitcoins-profits.com/zamejimakugurijazujokofiwooqzu.pdfIn PDF document text
    • http://finoginujowiwi.mypressonline.com/how_to_read_your_birth_chart_wheel.pdfIn PDF document text
    • https://retarabad.weebly.com/uploads/1/3/3/9/133997928/winejale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://36071b1a-d853-4ad1-bccf-0ed894d94038.filesusr.com/ugd/906e9f_b7c321f393f34698bc19d22af2891bcc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kubafezin/how_to_read_wiring_diagrams_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/abrasive_jet_machining_ppt_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/sopusaxawujibos.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/fuji_mountain_guides.pdfIn PDF document text
    • https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_a91702bf2f5e477f95059ad15b2d44f6.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_off0000e076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE076 5324 bytes
SHA-256: 6b5c1161ef11286c84761ce8111edb013442cbb612ebf97ecb76b88d3c2a4839
font_01_sfnt_off0000f2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A4 10496 bytes
SHA-256: 12013fc760d9ddc541a600c0c11c74baf20bc5e976f5fe14b754d35362a26d6a

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