Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8d5e7de70131140…

MALICIOUS

PDF

64.7 KB Created: 2020-12-11 14:51:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 898327dde0e35fbea426fff4f156376c SHA-1: 9d966a8de1523bdd059f8e250e6ed7eb5c3b953c SHA-256: c8d5e7de701311405609c3ce4406f7aab143a2d407f9d1520e9d887b233ee0c8
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 0.9998

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://trafftec.ru/strik?utm_term=pirate+ship+playground+accessories PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/vodefidepufodujaron.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6301f9fc-9d4a-4562-8457-02c534fc86f6/34089935752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9a36fa9-bfc5-4132-90e7-c2cd322c7af9/leril.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04a7ce9f-3a23-4d96-a8e1-b6fa307217f1/12656152570.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56ac1a879396864266ef9/t/5fcf78971b45e152edc95c87/1607432344027/dreamer_song_supertramp_lyrics.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc105099955c744b53c37bf/t/5fcc85c174a40730fb931a5e/1607239106538/32384041970.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fb7b9d9-25ee-461f-b226-dc61a4fca152/manual_for_doss_soundbox_bluetooth_speaker.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4f5fe18c5c478ef25870/1606373215637/what_county_backed_serbia_when_austria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/347bc6d6-a682-46cf-a53b-b6115578dee9/giorgio_vasari_vidas.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/pexixigupubezorotone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdd5935a-9dde-40cd-bbad-37d128231b11/judomom.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_off0000beec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEEC 5440 bytes
SHA-256: f854c8a85231d36c472c3887264a88aa30aaf11c2512bf398f98bbf85a16d8c8
font_01_sfnt_off0000d169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD169 10836 bytes
SHA-256: 7d6616380470a16c513febf3f3a7ec29d738c3f3c7a05d19424689c415b0d1d9