Malicious PDF — malware analysis report

Static analysis result for SHA-256 37389c310a088511…

MALICIOUS

PDF

67.1 KB Created: 2021-01-10 04:01:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 877e906de1fca5e45b42c9b043ed6316 SHA-1: b6f5b3a81b918d92ca50db094fde1068ec07a6a3 SHA-256: 37389c310a0885110d7cea9f55aaa7f4995997f3287f9447d6eda5789abe28d5
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 0.9883

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://trafficel.ru/aws?utm_term=jasper+report++64+bit PDF link annotation
    • https://widufosonetorif.weebly.com/uploads/1/3/4/5/134598319/vumitilorumof-muzijudo.pdfIn PDF document text
    • https://cdn.sqhk.co/xisiwuba/pggiiWd/run_race_3d_online_poki.pdfIn PDF document text
    • https://lemitixodage.weebly.com/uploads/1/3/4/8/134868200/305486.pdfIn PDF document text
    • https://nepigisebax.weebly.com/uploads/1/3/4/4/134477897/walapuridipota-dovedi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386084/normal_5f8fc612c1252.pdfIn PDF document text
    • https://zurobalunaxul.weebly.com/uploads/1/3/2/7/132712088/dididuxuzadaxus_medofuwibowid_kanab_kapin.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/boxalewijim/rice_krispies_cereal_bar_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/after_effect_bagas_21.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_off0000cac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC3 5152 bytes
SHA-256: 038c3416fd243b92589eeb28c901f70ce4cdfa5a640560f1e64cee7204527837
font_01_sfnt_off0000dc5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5C 10556 bytes
SHA-256: 5bbf3f209148d0bf4926eee4d254298b456513cfda80860ea2487636c58e1ce9

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