Malicious PDF — malware analysis report

Static analysis result for SHA-256 054048022033c80d…

MALICIOUS

PDF

73.6 KB Created: 2021-04-03 10:16:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7350886d4af4bdd3b7f7d96e458798 SHA-1: e3a8a4e9381598cca91746ac4b6ac4d60c675952 SHA-256: 054048022033c80de4478c4e48d75b4365f796fba4652d786367ab460beac15f
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that appears to be a lure for downloading a malicious PDF, disguised as an award or prize. The ClamAV detection and ML classifier strongly indicate maliciousness. The presence of multiple suspicious URLs suggests 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://gimoguvi.ru/award?keyword=introduction+to+food+and+agribusiness+management+pdf
    • https://cdn-cms.f-static.net/uploads/4465270/normal_5fdad332d554d.pdf
    • http://mebelintera.ru/sapujupisiritatizklhqa.pdf
    • https://cdn-cms.f-static.net/uploads/4505820/normal_5fdb710c6b9cb.pdf
    • http://adminhalil.com/davotoxowokevupameb3f7e.pdf
    • http://tizisewe.22web.org/kumafejojik.pdf
    • https://static.s123-cdn-static.com/uploads/4417664/normal_5fe29c04029b0.pdf
    • http://raisinsapp.club/the_princess_bride_movie_free_online_downloadd7dao.pdf
    • http://stepka2016.xyz/building_maintenance_excel_templatef70pt.pdf
    • http://tendernes.ru/919908186486itjh.pdf
    • http://igclienteam.com/piriformis_stretches_for_sciaticagibus.pdf
    • http://viximer.iblogger.org/92361969935.pdf
    • http://juzawuz.iblogger.org/27936205412.pdf
    • http://samelike.site/849013994097dy0w.pdf
    • http://strahuemsya.info/8342396599go14j.pdf
    • https://cdn-cms.f-static.net/uploads/4382620/normal_603bb39a26f04.pdf
    • http://espaceabone.com/bafakijatenanev7xjk6.pdf
    • https://static.s123-cdn-static.com/uploads/4372080/normal_5ff70dd642ef3.pdf
    • http://monongzhlh.space/total_war_warhammer_wurrzag_guide3ie5w.pdf
    • http://cccckkkkkdd.space/kavokike84rx3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sawuliwinupunud.epizy.com/deforestation_essay_in_english.pdf
    • http://nepumunu.rf.gd/native_american_zodiac_deer_meaning.pdf
    • http://fazirowepuwo.epizy.com/innova_3100j_diagnostic_tool.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_off0000e190.bin
5cd437857f14ce2fe0d765db8a84a8e62b3dda165da90d80bfe7c3e22e062eb0
pdf-font-stream PDF embedded font (sfnt) at offset 0xE190 5520 bytes
font_01_sfnt_off0000f439.bin
7ee567d27b1d5ef1dad50d0c8dc7151e0c0509af36d325b5363ba6f8b4168e51
pdf-font-stream PDF embedded font (sfnt) at offset 0xF439 10652 bytes