Malicious PDF — malware analysis report

Static analysis result for SHA-256 471e12d08d9f782b…

MALICIOUS

PDF

69.5 KB Created: 2020-11-30 17:52:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f279f0bdddcd9cc703c5346f67ebd7a5 SHA-1: cbe2f3ae64e69a1b85f5ebad09206dd556869e07 SHA-256: 471e12d08d9f782be98bf840bf03e8627fbedc98d86381b7c28a2b3139dcaf1f
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 0.9997

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://trafftec.ru/aws?utm_term=cetusplay+pro+apk+chomikuj PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449012/normal_5fbe9abb46c05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422144/normal_5fb75961f149a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451028/normal_5fa7e74c7f97b.pdfIn PDF document text
    • https://jadekida.weebly.com/uploads/1/3/4/3/134349878/vubokowufe-masejibidu-pezedudutike-dosafuwo.pdfIn PDF document text
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/rogujetonajarod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428052/normal_5faa77e2bd21f.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/f190dcae-3a52-49c1-90fe-023f22cf4acf/zupenobotusatusimo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f88bd26ff1194f740ef3/t/5fc135b13f75b16643004b13/1606497714672/zuvol.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/hakuba_ski_tour_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/somebody_something_anybody_anything_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/lisiwupenimazusobude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3d27813-28bd-40cd-b826-8ee02a645e39/bitalekemilenikoraxine.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/gonamozunozobekaveb.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/earth_tone_colors_for_houses.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e701bda9c57a97be38be/t/5fc16c8cf81c9a2a0cd7ba81/1606511757897/savoonga_alaska_map.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A1 5320 bytes
SHA-256: 8c13c2a86a481b0dfb6409f2149b6ceca386295dd21f0644babf00d3b490ded9
font_01_sfnt_off0000e597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE597 10524 bytes
SHA-256: e5b028fecadc768c75f00c15b6f16e212a92da456aad56a834d3f68deacbe455

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