Malicious PDF — malware analysis report

Static analysis result for SHA-256 d56ae087f7c2ead3…

MALICIOUS

PDF

75.0 KB Created: 2021-02-28 19:37:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d241681b563e35d86e15d77402dc045e SHA-1: a5e0fa8c8a3476e15a2de07d4f4acd88befb4db2 SHA-256: d56ae087f7c2ead3b17487956deb248eec7c859d6776e16150790c2b4ac48451
156 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to deliver a malicious payload or phish for information. The document body, though partially corrupted, suggests a lure related to fixing a Samsung tablet, which is a common tactic for social engineering.

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
  • 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.
  • 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://midufefew.ru/strik?utm_term=how+to+fix+a+samsung+tablet+that+is+not+charging PDF link annotation
    • https://betebawaxudu.weebly.com/uploads/1/3/5/3/135388356/degifizirumirakepogi.pdfIn PDF document text
    • https://ganepivojo.weebly.com/uploads/1/3/4/7/134774155/9d5ccf8ad0eaaeb.pdfIn PDF document text
    • https://verulofu.weebly.com/uploads/1/3/4/0/134012380/ef1b60b2d2313.pdfIn PDF document text
    • https://bivamotitujodo.weebly.com/uploads/1/3/4/7/134712473/4899494.pdfIn PDF document text
    • https://kodugeji.weebly.com/uploads/1/3/6/0/136089350/a31a0fe8b49f6.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/68450678971.pdfIn PDF document text
    • https://fuvetowonilup.weebly.com/uploads/1/3/1/3/131383456/saned.pdfIn PDF document text
    • https://pumelagu.weebly.com/uploads/1/3/2/8/132814433/8d8b359849.pdfIn PDF document text
    • https://taxikifa.weebly.com/uploads/1/3/4/4/134496463/fududezov_pusufofozudiw.pdfIn PDF document text
    • https://baxelawinojiw.weebly.com/uploads/1/3/4/3/134333718/8090270.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/harry_potter_and_the_order_of_the_phoenix_chapter_26_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/detegewox.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/noferisofufam.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/data_analysis_methods_for_qualitative_and_quantitative_research.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/critical_care_medicine_sepsis_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/1270148139.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_off0000e6c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C8 5556 bytes
SHA-256: 8ce18050822a4594fdbd6d9faa53a182a1cb9cc45de5f6cbf5744106a5c393bc
font_01_sfnt_off0000f999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF999 10728 bytes
SHA-256: 3d5228c35d9cc725a8f9e05acf2295fccf02a1183969347bb5e8e02effec1c72

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