Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d6076702028c66…

MALICIOUS

PDF

77.1 KB Created: 2021-01-03 04:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: aab8f0717d49f96dd0ea6502f6bc6e49 SHA-1: 9482f0d520901829a9662b115b8a7e4e1371ec02 SHA-256: e8d6076702028c669853a452b366ebb306e222355a64f4565d06727cb4f39a97
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, which is likely used to host a secondary payload or phishing page. The document body, though truncated, suggests a lure related to software, potentially to trick users into downloading further malware.

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://trafficel.ru/aws?utm_term=aperture+3.+0+mac PDF link annotation
    • https://cdn.sqhk.co/xeliwiwogivo/eVdC9gd/wowabiwokakebejufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473890/normal_5fe9dd2e53efe.pdfIn PDF document text
    • https://cdn.sqhk.co/rodesedaded/hfij4C2/putizasovuj.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/7YtYjg2/xirafajogadudisaxuwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5fd643e2d903b.pdfIn PDF document text
    • https://cdn.sqhk.co/tixelila/siabBT2/zaguwonejinupowimapos.pdfIn PDF document text
    • https://cdn.sqhk.co/xejulonejo/V5jeVf4/54929529320.pdfIn PDF document text
    • https://cdn.sqhk.co/gituridewo/3YBJiaP/lujenuzokebaliguvidupux.pdfIn PDF document text
    • https://cdn.sqhk.co/sexubozadifa/jcyhfhf/koxumi.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/T4cdTaS/gararuwozukidakezebilosa.pdfIn PDF document text
    • https://cdn.sqhk.co/rowavarop/he0hiLl/nolabosagogunipemanitanom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374715/normal_5f8e272ba43c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404488/normal_5fbe3211b7924.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/widiku/95052573526.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d173eb0-a8f9-40ab-a3b6-3d33a01f935a/11020913072.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AB 6168 bytes
SHA-256: 8fa5fc47f1c4d577ade0a12cf104f8d2f5d8331d2d553a120b9eeba46afd7401
font_01_sfnt_off0000f04d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04D 5196 bytes
SHA-256: b420a8a2f553b7f1f0371cfef96b3abcb540984adc2b0ebc795bd99243c6faca
font_02_sfnt_off000101f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101F2 10816 bytes
SHA-256: f6ba1c8445e045592f5d99a5bf841fe4d64c82f57d7da16a17f4b6948ed02dd6

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