Malicious PDF — malware analysis report

Static analysis result for SHA-256 a57b6193c3b1d061…

MALICIOUS

PDF

68.3 KB Created: 2020-12-17 02:08:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c7055d5b59a72f8a6a46fda21dba5f64 SHA-1: a6c90e1444c6ba730acb53af4b2a436ef664a400 SHA-256: a57b6193c3b1d061b277340222269be7008450dd86585e54ad7245a9baf38cd3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/aws?utm_term=sql+format+datetime+milliseconds PDF link annotation
    • https://xizuxukavawot.weebly.com/uploads/1/3/4/3/134376570/7826222.pdfIn PDF document text
    • https://wabumixa.weebly.com/uploads/1/3/4/5/134585451/kuxata.pdfIn PDF document text
    • https://wevupifusa.weebly.com/uploads/1/3/4/3/134356286/5efd97c8d70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376857/normal_5fb9946b0f8ae.pdfIn PDF document text
    • https://letitunonagafi.weebly.com/uploads/1/3/4/4/134494227/danuga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388596/normal_5f9ad1044efb0.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/6e1d7aec-a16a-4ae5-85bc-912f379d2c55/manim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e965cd7-bcda-43b6-894d-5bb0ec507ea5/19762701374.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f0134e4-4550-47a2-a40d-6098251207e0/jasesogotigelifivakuso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97e1160-0bbf-44c4-8bef-5c908ffe8d98/veforosuveg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a96d6a54-ad7d-4ef8-b0f8-c97d41a1a33a/kuloka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/575f2929-0efc-4e98-bf15-fc2ca0c32760/starbound_avali_tent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ee01a29-645a-4577-b662-4257befd18ec/suwuw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE99 5184 bytes
SHA-256: 9f1924ab934c7fe51cebd3f2297ffa2d73da6a542407f884ff90ec6a8ad7b2ea
font_01_sfnt_off0000d011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD011 10828 bytes
SHA-256: dbdb618517d8f5486b27f1dfdd3160bad8b727b2fb2b8f76893cdadd4c32e9b4
font_02_sfnt_off0000f4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4ED 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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