Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95357f05493a182…

MALICIOUS

PDF

68.4 KB Created: 2020-11-10 08:16:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f0a6749abcf790c579ee9f93a36e173d SHA-1: d6cc6ab8eeda729789efc58c5494709d40793cd0 SHA-256: a95357f05493a1828129968ae51329ac25859420f64e95359826e26d863df2c5
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 0.9978

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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?keyword=bob+dylan+ballad+of+hollis+brown+album PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375342/normal_5f936b4b5f349.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f87d020ccf05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467043/normal_5fa9e782cc4ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_5f979ddd49ee1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5f996309cbcd4.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/a577d6fd-97e3-4d73-9318-3b25c2159a5d/69904845165.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e64ae697-6aee-4ccc-ba68-8fb5019e165f/st_catharines_standard_obituaries_today.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b77b8f66-2598-452c-8798-710472f6b82b/fafanaraturezofokolejezu.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/73958066174.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_off0000c2c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C3 5528 bytes
SHA-256: 3a998f6956d7e1a0fc8d61b970f4cca36943ffc830f30c70342d311b5d410815
font_01_sfnt_off0000d578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD578 2140 bytes
SHA-256: fa98316bad0ee393e4244be63b1d230beb4724cf855be96ad4f2c87a5b302ae2
font_02_sfnt_off0000df52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF52 11024 bytes
SHA-256: e7c22f4e424666056ac2f8c568a0e87969a099865a98109408aaa5371f238ac4

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