Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee064af57e8cec4d…

MALICIOUS

PDF

154.0 KB Created: 2021-03-18 05:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 4cceb45ea4b218347f6af99421bc405f SHA-1: 5df4006634b9436f0c3a72e6f4c189107acb1854 SHA-256: ee064af57e8cec4d38d3946b8d8702b1de51349d2375eebb5675f3cd14058a35
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains embedded URLs, one of which is associated with a download lure. The presence of these elements suggests the document is designed to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jumiwimov.ru/wix?keyword=vhl+answers+spanish+1+lesson+4.2 PDF link annotation
    • https://libadelalisam.weebly.com/uploads/1/3/4/5/134579317/vasabivukeva_fuzokateruzil_zonibi_fogibuxilusuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403687/normal_5fd928f06514a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365536/normal_600515a1ce413.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412599/normal_5fd8853ae1f78.pdfIn PDF document text
    • http://thecaffeinatedstudent.com/253701755144ggmp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_60347ad6ae7d7.pdfIn PDF document text
    • http://ellmax-site.xyz/prominent_d1c_chlorine_analyzer_manualj5lmz.pdfIn PDF document text
    • https://nazisedisan.weebly.com/uploads/1/3/1/8/131871674/6825734.pdfIn PDF document text
    • https://jomobezeg.weebly.com/uploads/1/3/4/6/134606819/mafilipupubinogodox.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/zeworibuzoza/honkai_impact_seele_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/intellectual_autobiography_format.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/20709591458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0240aaec-2eed-4e35-9df5-6d800250a4de/chicago_style_use_of_quotations.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/lojaduvezibof.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/cisco_packet_tracer_free_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/41796844912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53a8a230-5942-4d37-8ec2-a4357e438f79/wiroguxepotarikujinu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c8ca678-b538-4442-a4d7-1cced1bb159c/51165679917.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/60177168202.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/xatofupidomitujunorolomuj.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/cancellare_foto_galleria_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a93e4b64-a7b0-41e7-b36d-1bdf5fe7435c/85502508655.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_off00020a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20A31 4976 bytes
SHA-256: 971d251a52c87d189774158ca714de377d772958d68ac248aa88a4c91ce2fbd9
font_01_sfnt_off00021b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21B1E 15916 bytes
SHA-256: 2c968d646f09b42e3d2372b572012849c0dcff6f0152727bca32fbdbd5eb6e36
font_02_sfnt_off00024bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24BD3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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