Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e3c42d72c44479…

MALICIOUS

PDF

72.5 KB Created: 2020-12-22 02:28:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 426893d77d4a9928e4e631a200fa0e95 SHA-1: b2056f57a7976244e3f0205f30fdbb20a15b1436 SHA-256: 34e3c42d72c444798d5f26d53f5e880b2024bf4a8797a64e56f66899193b0510
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple critical heuristics, including a malicious redirector link and a PDF link farm, indicating a likely phishing or SEO manipulation attempt. The ML classifier also strongly indicated maliciousness. The embedded URL points to known malicious infrastructure, suggesting it's used to distribute further payloads or lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://gettraff.ru/strik?utm_term=sport+apple+watch+bands+40mm In PDF document text
    • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/f338d16c.pdfIn PDF document text
    • https://litolojinoforiw.weebly.com/uploads/1/3/4/7/134721995/10be3983cc2289f.pdfIn PDF document text
    • https://ziwirekow.weebly.com/uploads/1/3/4/5/134529616/ranepovuribixeg-poloxamol-zabafoko.pdfIn PDF document text
    • https://fikazimibugexu.weebly.com/uploads/1/3/4/5/134515259/zivet-sugobonosek-zuzazam-tibegug.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/39ad6263-468a-4a8c-aea2-32f658ea1104/west_bend_bread_machine_41300_recipes.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcee45484361f7a2d9d2e95/t/5fd0eb51be88157ffb48ad56/1607527249377/63730049583.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b663de8-7415-49c4-9eeb-8e68b2773d40/26060245628.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f77ac6c-5481-4048-9187-cd7b4b5cd72d/xotic_bb_preamp_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc90b1a1-b12e-4577-99fe-d37a5dd90a2d/dosavozege.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b705eef1-eeef-48d5-9e73-6849e1bc0ad9/donkey_kong_64_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c655238b-6b35-41f3-a71c-f306d384d40f/wijusojogidum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00646460-fb24-49ff-8b33-d2e91fc8f253/sex_porn_site.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a316681-cf43-4552-8c7a-b0f5336e0433/adobe_photoshop_cs3_indir_gezginler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2081812b-de43-4a61-9bce-eb05df2bde98/75562831241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2db8f330-c135-406e-8060-6a04b672cefc/dancing_ballz_apk_mod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe02e41d7fbea164c306816/t/5fe085f115a11837d0d86bd9/1608549885710/beep_once_ringtone_free_for_mobile.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 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5D 5876 bytes
SHA-256: 6767703e027f998781106f22edc11a556e8eb6cca69f37329cba233e52a48b29
font_01_sfnt_off0000f03f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03F 10888 bytes
SHA-256: 6b342a22615113516496035600c70ce72a38ed74f4b409e6a3cee97fbd0f1e1d

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