Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfdd52ba2532f6ff…

MALICIOUS

PDF

95.6 KB Created: 2021-03-17 17:54:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4ff1a1efdaac085fece9fd7232ec9ab0 SHA-1: 8d6798a208af7bc381e0fc316e9950c3a6e364b5 SHA-256: bfdd52ba2532f6ffee3f532e6987212ca51aedcc2248d305fe0cefef495e6a4c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/wix?keyword=science+a+to+z+puzzle+answer+key PDF link annotation
    • http://lenusabipowezo.getenjoyment.net/warhammer_40k_ninth_edition_release_date.pdfIn PDF document text
    • http://videohost.space/77687210434ypzzu.pdfIn PDF document text
    • http://madoxorijegobe.sportsontheweb.net/68559694622.pdfIn PDF document text
    • http://ritual-venki.online/2016_amc_10b_problem_25cry0f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378410/normal_6005c14139b98.pdfIn PDF document text
    • http://cafechorsu.ru/kirigowazudcp5t.pdfIn PDF document text
    • http://eurosett.net/are_jeeps_expensive_to_maintain_uk1xi6h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406775/normal_60052795695e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487191/normal_604386cee43a8.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/71510308766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380380/normal_5fe83a29836c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421613/normal_5fefeb074931e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/el_campesino_en_colombia.pdfIn PDF document text
    • http://mobosusewet.epizy.com/navijupikebano.pdfIn PDF document text
    • http://zoligagomuwe.onlinewebshop.net/sex_position_called_vortex.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/spreadsheet_ideas_for_bills.pdfIn PDF document text
    • http://kifesafijupesob.onlinewebshop.net/grace_alone_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/vumapawutebubirafula.pdfIn PDF document text
    • http://donosusiligid.rf.gd/97753826068.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/96008747043.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/branson_10_day_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/31919367685.pdfIn PDF document text
    • http://basapixukeg.rf.gd/pazalusewekovuwawe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001295e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1295E 5220 bytes
SHA-256: cbfb56e7c4f8baea133680f329873e675b593504b6ee820d0218312183c744b4
font_01_sfnt_off00013b40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B40 11640 bytes
SHA-256: a281af0429e27d76bdf37d92aaec86adbb537fb802667d0abe83bfdbd78557ea
font_02_sfnt_off000162da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x162DA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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