Malicious PDF — malware analysis report

Static analysis result for SHA-256 2999b5ad17159c0b…

MALICIOUS

PDF

102.3 KB Created: 2020-11-20 00:55:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3e5388831b8ce94cc208389c83ef8a7b SHA-1: 242561fa0fc66c4e2d09cada9eaed6254aa2bafa SHA-256: 2999b5ad17159c0b1ae161d619abff92de15493ad6dbe3219d60182dd963ea50
202 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://traffmen.ru/strik?utm_term=tamil+movie+2019+free++tamilrockers+isaimini'. Additionally, it exhibits a high-risk lure for remote support tools, suggesting a pretext for the user to download and execute a payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffmen.ru/strik?utm_term=tamil+movie+2019+free++tamilrockers+isaimini In PDF document text
    • https://cdn-cms.f-static.net/uploads/4476135/normal_5fadac5ac09e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477864/normal_5faa5adf98f7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425514/normal_5f9994af0f4e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368248/normal_5f9015d17fb02.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2d49d74b-15f2-4d5b-9db9-ec8f142907ba/maxazorarixesoget.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/external_cpu_cooler_for_laptop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/674138de-2885-4aca-bbf8-c59bd4ff2662/81751393761.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e89524a-5078-4ea0-8412-559df7e6410e/koser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fac04e5-7577-49fe-9138-ff0604664510/bubekumikataxafuwobekari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4adf8dda-2f0f-48fd-a84a-f50b979e9f44/41417815657.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/alban_berg_wozzeck.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d6c0f50-4ce1-4d6d-a7cb-c97588fb38e3/science_and_practice_of_strength_training.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14869 5368 bytes
SHA-256: d7a9fcac39a807d05b6ffa1183d6ac6084afdf4630580ec74cc6f22d0e2e0b03
font_01_sfnt_off00015a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A9D 10348 bytes
SHA-256: 0902c0a5728d35559cc54434f841f67e715cb31b08231e14b933f8865e97039d
font_02_sfnt_off00017dc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17DC2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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