Malicious PDF — malware analysis report

Static analysis result for SHA-256 97fc180ed8cf0f86…

MALICIOUS

PDF

156.0 KB Created: 2020-11-20 04:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: fa0a53b5d3b2baa91d25d6d2e3655c84 SHA-1: 915212cc87d4c8cd570fdb60ce6a7a43be0cb050 SHA-256: 97fc180ed8cf0f86bb2584a35193e70d29cf72f6b77b15be4b3301c4332b8777
136 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://trafffi.ru/aws?utm_term=fatca+reporting+start+date PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fatisake/xazarisifinigibinafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3f0a18d-684e-437c-b0b5-9e57ad3428f9/vampire_lord_warhammer.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/1037391285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88ababb5-2044-44c2-bc3f-da5220601d5e/82342688951.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/wanajaselovigawiba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8217727-80b2-45b6-adf8-b506d5914461/32955532586.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/004ecc55-b106-46b4-b173-e571f3c5c4d0/gixopapexesosinixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bd3e65b-369f-4b73-b8e5-27228c00d6dd/mebefavomazuwed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffe4519f-07b4-427a-9058-05f3a42a1629/minecraft_bedrock_education_edition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/333899690.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/gezivamiwatukizogajolemu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20518 5164 bytes
SHA-256: fc502fa15c8516bfacc7ddd8b31dfcbfa899e04feed3c9bb03550a4e85f48706
font_01_sfnt_off000216b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x216B7 15212 bytes
SHA-256: 9d0e63519cf049270694a5739b4ad87f196ac17d7d48b0252e3208be0a87d4d9
font_02_sfnt_off00024657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24657 18184 bytes
SHA-256: 73ad9953e0b0b870c86a54a9094ff353ff881f860a9bd01d057bc537cac4375c

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