Malicious PDF — malware analysis report

Static analysis result for SHA-256 703b21f588f9341c…

MALICIOUS

PDF

80.7 KB Created: 2021-03-14 10:37:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fc07b7983a7ea34237963c35272c4e9 SHA-1: bd07ae8173175d95b9f1fbd9065d68aa6826500c SHA-256: 703b21f588f9341cc2f874fb4c47c2b4cb2b4742e06cdd41bfd5da5a9c1a21d3
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating external URI usage and is flagged by a machine learning classifier and ClamAV as malicious. The embedded URL `https://lozipotod.ru/wix?keyword=plenti.com+card+activation` suggests a phishing attempt related to card activation. While no scripts were explicitly extracted, the PDF structure and the presence of external links strongly indicate a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/wix?keyword=plenti.com+card+activation
    • https://sudujosapo.weebly.com/uploads/1/3/4/5/134510416/xalabenakijodejemi.pdf
    • http://fosipuzo.mypressonline.com/zend_avesta_english.pdf
    • https://vilinumatilaji.weebly.com/uploads/1/3/2/7/132740241/62927a.pdf
    • https://lerinaxupol.weebly.com/uploads/1/3/4/6/134662503/mevavovadomanenari.pdf
    • https://cdn-cms.f-static.net/uploads/4416150/normal_5fe73f4643ab1.pdf
    • http://roramog.iblogger.org/75445327486.pdf
    • https://static.s123-cdn-static.com/uploads/4419849/normal_5fe5391321387.pdf
    • https://tisalupiruj.weebly.com/uploads/1/3/4/0/134018152/rakoxejamozireb.pdf
    • http://fasekafalig.scienceontheweb.net/what_are_the_environmental_indicators.pdf
    • http://rumepado.mypressonline.com/derivative_and_integral_formula_sheet.pdf
    • https://static.s123-cdn-static.com/uploads/4473619/normal_60023845a08d7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gafijid.atwebpages.com/70426819598.pdf
    • http://jomovexujufadi.epizy.com/89953349817.pdf
    • http://dijugotir.epizy.com/how_to_divert_call_in_samsung_m30.pdf
    • http://zopatirek.epizy.com/99577938680.pdf
    • http://jemileti.atwebpages.com/how_many_words_should_a_2_year_old_talk.pdf
    • http://doriponesarom.myartsonline.com/nozanilefopedekadanuxire.pdf
    • http://bewojux.epizy.com/vokanuwalim.pdf
    • http://xixovunutev.epizy.com/letozetutufirotupokur.pdf
    • http://nenidexixod.epizy.com/w3layouts_html_template_free.pdf
    • http://pususarejopo.epizy.com/vadasavodadadapex.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e895.bin
45faeab64d24a359744d08a38e6ad4b8d13aab92d8340852f7d2868c71fbe282		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE895 5000 bytes
font_01_sfnt_off0000f985.bin
e73580bebe4af883f7b9b05efe2e2013b87409d0959aa6de769e3b838c173953		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF985 10732 bytes
font_02_sfnt_off00011e5f.bin
a987449a195854f2da8fc9be4bfa523ba37347d04953fab90dd70ddb79372158		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E5F 16876 bytes

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