Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c2cbf071318afec…

MALICIOUS

PDF

77.6 KB Created: 2021-03-06 02:43:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3381bdc47deebc690132900e8b5b50bf SHA-1: 8c5cec1d74feb13fbd386131f57879794f4493ec SHA-256: 1c2cbf071318afec08cbb9115c503c7bcaf2f52154bed4f02b25500b8dd89f4c
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that, when visited, likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to Photoshop, aligning with the embedded URL's keyword.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://vilenefex.ru/award?keyword=how+to+make+a+specular+map+in+photoshop PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5ff262e3c3888.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489587/normal_6004509754e4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366317/normal_5ff5425459f00.pdfIn PDF document text
    • http://xilenemivagola.mywebcommunity.org/free_printable_grade_1_maths_worksheets_south_africa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457312/normal_5ff2b656796f8.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/vuxolubikodenatolonen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412161/normal_5fcf340e25201.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491433/normal_60175907c4cb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501993/normal_5fdaecc2bdb43.pdfIn PDF document text
    • http://weloxeripen.iblogger.org/i_love_you_so_ringtone_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dofemuxu.rf.gd/cheap_thrills_movie_480p.pdfIn PDF document text
    • http://vowukexakajan.rf.gd/new_hairstyle_boy_2018.pdfIn PDF document text
    • https://981168d4-05fc-44b6-871d-73371d7e8cf1.filesusr.com/ugd/87d215_54985a0087d2426b80897a51ffe5e495.pdf?index=trueIn PDF document text
    • http://fukatotapi.epizy.com/which_element_has_the_most_energy_levels.pdfIn PDF document text
    • https://16012499-1299-48b0-8cdd-5f23a7749958.filesusr.com/ugd/fafc38_a113a6a71926415eadc6d4491748d1fe.pdf?index=trueIn PDF document text
    • https://bc260b4e-efc2-469d-9102-9c7234992d76.filesusr.com/ugd/b1b3ad_74cc912eef464262bfb3bab459328575.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/debfe624-96ac-452a-b32f-5ad0b103ce3b/tapekinosig.pdfIn PDF document text
    • http://gepikadagutuv.epizy.com/15387354934.pdfIn PDF document text
    • https://81da36f4-dec6-4bf4-836b-19ed67500659.filesusr.com/ugd/5fd5c1_ee7a151151584fc4a16a3be7f34da413.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/27586f94-b639-49f0-a701-eeb51aa3bff6/xerig.pdfIn PDF document text
    • http://wobanunep.myartsonline.com/63237678809.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2028255c-e213-4322-b6c8-d487f572b98f/pafijobe.pdfIn PDF document text
    • https://c750c8cf-f189-4014-a78e-197d4cb0f9f2.filesusr.com/ugd/e5a943_e17b35f1114846a785316d9c698f2117.pdf?index=trueIn PDF document text
    • http://fepusum.onlinewebshop.net/what_are_the_12_stages_of_a_heros_journey.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_off0000f2e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E0 5292 bytes
SHA-256: 4d900ebc1bc4c334208f9be2ceca2bd7c973fb52921b72b80805224f52880da9
font_01_sfnt_off000104bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104BD 10612 bytes
SHA-256: 0c40e9b2a07be73ba050c90c83c0cd74f8916f8071e24cbb75560d53cb88b0d2

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