Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2983bc8a8cbed7f…

MALICIOUS

PDF

73.6 KB Created: 2021-03-21 09:27:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e7d2e1d870d971c14310353369fd9a18 SHA-1: bcb8f23346449b13c54101c9a5c9a52227520da1 SHA-256: c2983bc8a8cbed7f32acc72eafe3944e60b1114a7d1e871ba917dfd4a8e11d30
104 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded and external URLs, along with a heuristic for a visual download button, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/award?keyword=caaspp+practice+test+8th+grade+pdf
    • http://bnl-jobs.com/low_histamine_diet_food_listwy5aj.pdf
    • https://cdn.sqhk.co/letarezetap/CDWhbqq/bamogapewinifusofenarilog.pdf
    • http://ruwazumusef.scienceontheweb.net/88506674547.pdf
    • https://cdn.sqhk.co/wituwuxevef/Talgjia/davepaxugepebawopa.pdf
    • https://cdn.sqhk.co/zosaremarebi/QitCgiU/bobexinovepa.pdf
    • https://cdn.sqhk.co/vuvapolaxaj/kjaiZhf/57894329826.pdf
    • http://meetsoda.pro/git_commands_for_windowsdb63f.pdf
    • https://cdn.sqhk.co/gorilotinedo/2OidUfl/46070332013.pdf
    • http://nout-sale.site/34644551443z3klv.pdf
    • https://cdn.sqhk.co/fodexuxefeba/icwiehc/88100902745.pdf
    • http://talajifit.mywebcommunity.org/codigo_ascii_acentos_frances.pdf
    • http://gamukanemafutu.mywebcommunity.org/brief_history_of_neoliberalism_david_harvey.pdf
    • https://cdn.sqhk.co/tijatabov/i81xVia/90984430594.pdf
    • https://cdn.sqhk.co/vivepovugeli/7hfjd03/dapakutixudiwejo.pdf
    • http://rostov-mobile-doctor.ru/bemuj32ti7.pdf
    • http://mesanezedid.mypressonline.com/melesamudezirugarafum.pdf
    • https://cdn.sqhk.co/sofizagumup/hctk2qw/mazamuri.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lobopekogolo.onlinewebshop.net/86258807331.pdf
    • https://uploads.strikinglycdn.com/files/4c3b90e4-b24a-40fe-a722-b41ccf1150c2/north_carolina_dmv_drivers_license_test_study_guide.pdf
    • http://sadozejeko.myartsonline.com/basel_2_document.pdf
    • https://uploads.strikinglycdn.com/files/b3c9147a-8cb4-4411-81cd-d23998167801/principles_of_geomorphology_thornbury_free_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e33e.bin
2d577f23c4bd1095108fb803cfa01b592a68a117491daefe5867c4156a99b372		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE33E 5484 bytes
font_01_sfnt_off0000f5d7.bin
00872b59d829bc5a42a6e2f303e6807ff88984ad4f93df48f2cf475f3125aef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D7 10384 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.