Malicious PDF — malware analysis report

Static analysis result for SHA-256 777d2b52c7ed03c5…

MALICIOUS

PDF

79.0 KB Created: 2020-11-16 13:16:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d209054af513f4564bcc8da8847d082c SHA-1: 9cd2fd26e63466d89a2aca9955f4ee4cec2d2315 SHA-256: 777d2b52c7ed03c5059b8fa00607465eb1d3bab8484447a7958208115804d595
96 Risk Score

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 0.9997

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://trafffi.ru/123?utm_term=scion+tc+dezod+turbo+kit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377125/normal_5fae36d9355a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_5fadad6248637.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420604/normal_5f98e1cbd386b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/10ae367b-fee6-45a2-8584-92590140c4f6/woxufojoberaduwuxulitebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7425b5cc-4f3c-4ad5-a5d9-b43671800ef9/logan_swim_and_tennis_club_youngstown_oh.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/53049348645.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6b0f8e1-ca1f-44d2-b737-cf281ad15c98/tajejowonibutozugilazop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a48c53b6-b3b1-43b9-80f2-f7e8d0542aaf/electronics_lab_manual_volume_2_ka_navas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95cbc840-406b-4c36-9d5a-8863fa36e286/874513631.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/fuwazalemojufol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba0bc068-96ff-4f3e-b001-5d2fe769c486/wym_in_texting_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/gajejasa/90313280362.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_off0000eb52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB52 4872 bytes
SHA-256: e6a1079ff4b8ee031410368626402a8067fcba13a3b41f4b97ac4cb2adfde541
font_01_sfnt_off0000fbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF6 2140 bytes
SHA-256: 49dddaa543544930169c80d10742cf71a10a90771d945bdf421e53748b1fa594
font_02_sfnt_off000105d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D0 12172 bytes
SHA-256: d2cdc808cb8cf45417e48f7a0b509e970ebb9b457bd60c540fdb935f0eb50d2e