Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0cb153aa46cabd…

MALICIOUS

PDF

82.6 KB Created: 2021-05-16 11:10:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9b78bf5bc2d913846ea9ae96eaa2e10d SHA-1: 50faeeaa64dd031b651962d3d5a18b80b278da78 SHA-256: 7e0cb153aa46cabd365cf968cc2007b66ce4ecae8dffdab03cdd2df906fc5f2d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An embedded URL, https://xezojetit.ru/strik?utm_term=how+to+tub+clean+an+lg+washer, was found within the document, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to cleaning an LG washer, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=how+to+tub+clean+an+lg+washer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371265/normal_5fcb15742cb62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367940/normal_5ff9352e23a13.pdfIn PDF document text
    • http://vvd.bar/jumping_jacks_benefitsvjqzt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372072/normal_600659d0a0f73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380887/normal_6066c0f1184bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391340/normal_5fd81ded301cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470387/normal_5fe59181f1cbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412154/normal_6049d1e24eaf5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496582/normal_602926238ed99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_6061c936a2592.pdfIn PDF document text
    • http://dorightpress.com/contemplate_simple_meaning2am6r.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://uploads.strikinglycdn.com/files/e17abf1b-b24d-43f4-84cc-f36ad140a1ca/what_is_the_synonym_of_sleepy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf1d0bbc-f1ad-4247-9a05-8abfaafb10bc/23649185653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19cd3194-653c-44a7-a520-eb4c5e33f3fd/39086074341.pdfIn PDF document text
    • https://63b1f34b-4847-450f-8d9a-4788d10e1cf5.filesusr.com/ugd/451a43_2f8289fa2a1942a88a27a04aa0d9ef5c.pdf?index=trueIn PDF document text
    • https://fc9a8e44-b853-4378-b933-957c6fa9ceda.filesusr.com/ugd/1da781_1793a567e8f6435897570c6e3545bf06.pdf?index=trueIn PDF document text
    • https://d190c387-1498-4382-a59e-98d1a0a9794c.filesusr.com/ugd/a91264_08fae8ba611d44298b8238ed6cd3bd42.pdf?index=trueIn PDF document text
    • https://0a3c8164-ddd9-4522-8472-457ce31ece15.filesusr.com/ugd/d32f78_dc7ab42464374e3cb9f6c35e0ff4d3f8.pdf?index=trueIn PDF document text
    • https://4ceac43d-3374-4736-8926-b47930641487.filesusr.com/ugd/3b1191_a429c97ede4d415eb230a1c4f972dd62.pdf?index=trueIn PDF document text
    • https://89f68ddc-9f98-4e60-8afa-3e0ca6603e9e.filesusr.com/ugd/4725f1_d660136b30b74ab699bd2530807cf33c.pdf?index=trueIn 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_off0000f72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72D 5088 bytes
SHA-256: 4228cb160b2eb86c2b5004057612a92db827ca9917087ad0d73a4f52d830faf8
font_01_sfnt_off0001087e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1087E 11456 bytes
SHA-256: f898138cb1ed8f8c03e3c2ec43049aea3e2bb34624206aef8446b3eefc5760e3
font_02_sfnt_off00012f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F12 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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