Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c45a2cfbbeba45…

MALICIOUS

PDF

60.3 KB Created: 2020-12-18 03:36:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: ea07276463541be78fdc0a1dbdbec41c SHA-1: dac2320841b35f055e35310f291b49a5185c086b SHA-256: c2c45a2cfbbeba456dc680713dc3fc86b3948947ee57e7e71011312af35952a8
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/aws?utm_term=believe+josh+groban+piano+sheet+music In PDF document text
    • https://mapikomuxet.weebly.com/uploads/1/3/4/5/134579134/3962020.pdfIn PDF document text
    • https://batigagonu.weebly.com/uploads/1/3/4/7/134774980/fuvukevumipozinex.pdfIn PDF document text
    • https://wedagibawarog.weebly.com/uploads/1/3/4/6/134680751/polarum_wizizo_mewiburagaga_dajaxogiwi.pdfIn PDF document text
    • https://fapifejoj.weebly.com/uploads/1/3/4/2/134265577/kitul.pdfIn PDF document text
    • https://rulomegujenuguv.weebly.com/uploads/1/3/4/3/134329868/6060638.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc4cbdd085bf90c0e1619f8/t/5fc6e0b53d56556d142d1998/1606869174606/mifetijagomawagif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a7ab765-3d4b-422d-b6b3-c8eb820a4be0/zekimixunaxinew.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/burlington_elementary_school_billings_mt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cb494b3-cbab-4346-aa53-383472f27c47/2nd_grade_agenda.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc59f20ff13940aa25faf9a/t/5fd1892df2ee360040f1fd0c/1607567661806/tegususu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d497a6fa-06ca-4dd4-a669-3f7bbf88d21d/migogovefidenuge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68e7c316-107d-4f75-a65a-d3e8e313f825/53918560646.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0bcbedabee7b44094d75/1606224844235/ancient_greek_jewellery_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/595a55e5-648f-495f-9101-0714805e2388/51360330214.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffcc36609fd0ee78c2f31/t/5fc20c43fa04221c7166ad28/1606552643513/cells_and_heredity_textbook_online.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_off0000acf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACF8 5672 bytes
SHA-256: e2bf151f93a257a9f281ee164413268d1db9ccbbd3ab5bb26067a1bc7c5e4032
font_01_sfnt_off0000c02e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC02E 10516 bytes
SHA-256: 951c47194cf16776e18bbbf3ff3a0d22491e838cda996efa335e1ae4b6399eeb

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