Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c119863d23559e5…

MALICIOUS

PDF

100.2 KB Created: 2021-03-05 07:08:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4fd7b850b9400e4fe204ac98fec09ca SHA-1: f4e1414ede65451604bb34a3f6893615b1fc0693 SHA-256: 3c119863d23559e50ee84fdfa4f058ceb7b143cee4acb46c864292c6624ad38d
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URIs, including one that appears to be a download lure, suggests the document is designed to trick the user into accessing a malicious site or downloading a secondary payload. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the overall pattern points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=alum+lab+ap+chem+answers
    • https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/1929923.pdf
    • http://astrohelp.space/mmpi_2_fbs_scale_interpretationsg4jm.pdf
    • http://baffer-shop.space/lyrics_adele_-_hello_audiotj4op.pdf
    • http://lotto-investclub.com/gujarat_mitra_surat_epaper_date_wisegu3zl.pdf
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/magega-sedugituwif-zomenoraxag-batusifusixi.pdf
    • http://graatorama.fun/musical_word_search_puzzles_printable_for_adultsm2bxh.pdf
    • https://jaweditulopo.weebly.com/uploads/1/3/4/3/134313576/lapitepuma_sanikan_mokexi.pdf
    • https://cdn-cms.f-static.net/uploads/4496592/normal_6023f4b45baf6.pdf
    • https://fesomexipilajuj.weebly.com/uploads/1/3/3/9/133997099/dotixirubibub_semexudesuput_xodedewuva.pdf
    • https://cdn.sqhk.co/gibuburi/hdQRheX/34.pdf
    • https://cdn.sqhk.co/lawotivu/zaVCjh3/92192111318.pdf
    • https://static.s123-cdn-static.com/uploads/4414172/normal_5ff8a2acaf172.pdf
    • https://karujelibofab.weebly.com/uploads/1/3/1/4/131406149/binopaxajub.pdf
    • https://static.s123-cdn-static.com/uploads/4451760/normal_5ff917a7024d6.pdf
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/rexiziw.pdf
    • http://ch-data-2a8fv9s.pw/felorijap55mkw.pdf
    • https://cdn.sqhk.co/jaselavujuwi/Ahdjbhe/volofevelufujosokenerifo.pdf
    • https://cdn.sqhk.co/sevafeluba/jjChejj/xefuketumofufan.pdf
    • https://lalojitewimagix.weebly.com/uploads/1/3/5/3/135304200/zijudelupi.pdf
    • https://cdn.sqhk.co/bujasugawo/IijjhD8/28348104385.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/papuja/zusosimelekefajimuvo.pdf
    • https://s3.amazonaws.com/janodojivi/27619910432.pdf
    • https://s3.amazonaws.com/setikizo/32072429416.pdf
    • https://s3.amazonaws.com/falevi/18413872747.pdf
    • https://s3.amazonaws.com/dogazisuze/9580667333.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013d1e.bin
94f9f046a1094701c4ba25958ee7e1dd00cca0368d2b84c590d15a948c53f473		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D1E 5040 bytes
font_01_sfnt_off00014e0d.bin
cc98c2ff9de7ee6eb9ad5d0fe9eec86e5bcfa2ec90597387dc979aeec63b280a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E0D 11908 bytes
font_02_sfnt_off000174a5.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x174A5 4324 bytes

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