Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b8aa1cf8a78b17…

MALICIOUS

PDF

65.2 KB Created: 2020-12-04 03:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c61ce1c0095d1316745921282c2cae66 SHA-1: 9049d87c31d24bc84c158d385eb18818911d8a73 SHA-256: 14b8aa1cf8a78b17583324fe39a45783aa7cf3370de9df1e0a28a91d4cdc3890
156 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document and hosts a large number of external links, some of which are likely part of a link farm. The embedded URL 'https://trafffe.ru/aws?utm_term=false+police+report+illinois+statute' suggests a phishing attempt related to legal or official matters. While no scripts were explicitly extracted, the PDF structure and the presence of external links point towards a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://trafffe.ru/aws?utm_term=false+police+report+illinois+statute PDF link annotation
    • https://wevupifusa.weebly.com/uploads/1/3/4/3/134356286/3822842.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/zivuresegivololevukofaj.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/nupirimowazujanora.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/the_return_of_the_king_bangla_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc69e96bdb33045eee9cc09/t/5fc7f9490a30d12980f93a42/1606941001580/nasowim.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffb1ae9fc3622d51d09b9/t/5fc2689feaf37e3b64ea2fd0/1606576287615/runaround_sue_chord_sheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4f72c17e7202640041a88/t/5fc8de13dcb5b26079865e0b/1606999574550/mercari_selling_app_phone_number.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0e9bfa04221c71e81cb6/1606291108568/pokeball_plus_black_friday.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/29079566303.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/xagatetuwodumobo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18edba8793968640cfc97/t/5fc68db69b1ed03538c2542e/1606847927283/masha_and_the_bear_party_supplies_south_africa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d06c1452f90b7ff1a516/t/5fc98b49ee6dcf7e362a2a0d/1607043913585/71094257947.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/math_problems_with_answers_for_adults.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_off0000c4b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B9 4884 bytes
SHA-256: 8fb4609cf245af7b965ba5cb47df0761962bc9e7b07251bdfc173c251c4c9448
font_01_sfnt_off0000d564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD564 10300 bytes
SHA-256: 66d814f8dcc9afb868e817bb3db4f1bb8d50e9518c8cd398f0a7f49419c9415c

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