Malicious PDF — malware analysis report

Static analysis result for SHA-256 469de4e6b9a0a06a…

MALICIOUS

PDF

78.7 KB Created: 2020-12-15 14:56:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: a099ab453d03130e35103a7148675921 SHA-1: 9710818a93c62faaea8032091c85ccab30cc36ab SHA-256: 469de4e6b9a0a06a5bba7b6694716c3e2d57db08921f2fd499d189109dd988de
214 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. The embedded links, such as 'https://traffking.ru/123?utm_term=spades+plus+hack+apk', suggest a phishing or malware distribution attempt. The presence of numerous external links also indicates a link farm, a common tactic for SEO manipulation or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://traffking.ru/123?utm_term=spades+plus+hack+apk In PDF document text
    • https://kuvugelovusilu.weebly.com/uploads/1/3/4/4/134437140/9079907.pdfIn PDF document text
    • https://birebojutadavom.weebly.com/uploads/1/3/4/3/134342015/2482793.pdfIn PDF document text
    • https://suzexefovewav.weebly.com/uploads/1/3/4/6/134640410/dixedax_bufev_wukupezisuvumi_zezebokeku.pdfIn PDF document text
    • https://tipozuroboga.weebly.com/uploads/1/3/4/2/134265922/widumixid-nafonepibepo-rezatabekax.pdfIn PDF document text
    • https://nuvapagizete.weebly.com/uploads/1/3/4/7/134748671/a06911c2ed4623.pdfIn PDF document text
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/januvimubazi_nafuziz_sogifemiditis.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/5fcdf22f90e5b06becb38742/t/5fd0cf60fc93c51d16e75eae/1607520096087/28345732087.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6afd77848ba205d414585/t/5fd68a843ebe041631662244/1607895685230/81664682205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1697783c-146f-4406-991d-af658b0ebebf/neuroanatomy_made_ridiculously_simple.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1511bbda9c57a97c10f7b/t/5fc8292543b29e7a5aea6400/1606953254282/exorcist_cast_season_2.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b98048c1673e559ebd3e/t/5fcc18c7c836a917f9fb3624/1607211208381/car_runs_rough_at_2000_rpm.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc368e8c6229360ecbce8a9/t/5fcf36bd1b45e152edc2cc6f/1607415493344/ipay_brta_bangladesh.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/12536595832.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb4bc97a-d7b0-4c15-9901-8ae5dc7a3080/tafowaligi.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_off0000da5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5E 5232 bytes
SHA-256: a7dc68a58324cb5a0991bbea1e8e6a9e963c45ed699c9fece483e2039f39f45d
font_01_sfnt_off0000ec29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC29 11308 bytes
SHA-256: 535cec62290afa858a1aa59f2f656312821229ab8c86dfbb8c3bc102938dd279
font_02_sfnt_off000112ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112EA 17800 bytes
SHA-256: e4e2db4adf359ec5e41c525fab03496b59bb544f5cae13ca33d897ff453e7d15

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