Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b8c93b335711e9…

MALICIOUS

PDF

80.5 KB Created: 2021-02-15 09:30:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7aad07a5ec3f61e4e0f5ec362a23b852 SHA-1: bff3f0c7335eb668c10e52d00bd502e4a2fe89ef SHA-256: 48b8c93b335711e9d4a068b7fa9a6b1fd3d52ee7edd4b325d9f87a8319ac3a80
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic firing for an embedded URI pointing to a suspicious domain, and this URL is also listed in the document body. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution. No scripts were extracted, but the embedded URI is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=best+offline+video+editor+for+android PDF link annotation
    • https://galanopudaxu.weebly.com/uploads/1/3/4/1/134109153/puxomigu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454422/normal_601664d1851c5.pdfIn PDF document text
    • http://gemotebefid.22web.org/elementary_biology_volume_1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494430/normal_5ffd2c64058d2.pdfIn PDF document text
    • https://fanizoliboligom.weebly.com/uploads/1/3/1/0/131070566/jituxokixa-fobomiw-vunujovi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384045/normal_5feba9069f836.pdfIn PDF document text
    • https://ladufuvugekowek.weebly.com/uploads/1/3/4/1/134108614/7444104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426549/normal_602a118538037.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445864/normal_5fdacecf3c3f1.pdfIn PDF document text
    • https://dominisu.weebly.com/uploads/1/3/1/3/131379959/kupobaxob.pdfIn PDF document text
    • http://wolorarozuxa.22web.org/fokonugaxisubemonegen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371505/normal_6027ec7058d73.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458856/normal_5ffa782246124.pdfIn PDF document text
    • https://tolutewegudef.weebly.com/uploads/1/3/4/0/134097468/sejoduge.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://s3.amazonaws.com/fekazudabo/yadon_ki_barat_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/voxumixupizadaf.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/35629966878.pdfIn PDF document text
    • http://josekew.epizy.com/ruguma.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/58535725461.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_off0000eff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF2 4796 bytes
SHA-256: b4915121f101d942401496353e2bb0966efd1946e32e13fd33491adc24b2ef26
font_01_sfnt_off0001004d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004D 10784 bytes
SHA-256: 52b2b5cdd92940723106972f38a9f10346005b256133475b2b7873d98efef53b
font_02_sfnt_off000124eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124EB 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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