Malicious PDF — malware analysis report

Static analysis result for SHA-256 babfe9456694aae7…

MALICIOUS

PDF

87.5 KB Created: 2021-02-26 14:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 20ad466f8f58b56439c236f3da1f33d0 SHA-1: 42f28c4922c5213c30ae4166f322109e5f26a45e SHA-256: babfe9456694aae7c8f451bf94f2671bf2cef501422efc1108078e1d5563d5d6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a phishing page or download a secondary payload. The document body, though heavily obfuscated, appears to be a lure related to quotes, attempting to disguise the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/123?utm_term=sri+ramana+maharshi+quotes+in+tamil
    • http://bezinawevudo.22web.org/cafetera_bosch_benvenuto_classic_manual.pdf
    • http://maretexojud.66ghz.com/53051847037.pdf
    • http://edapog.online/biologia_del_desarrollo_gilbertczs26.pdf
    • https://nomikevokatipo.weebly.com/uploads/1/3/1/8/131859895/6966365.pdf
    • http://hyipinvest.site/gymshark_leggings_size_guide_uktbqbb.pdf
    • http://rosebip.22web.org/ancestry_spirit_guide.pdf
    • https://cdn.sqhk.co/lewiwifo/hfWjfhj/67520182978.pdf
    • http://minuette.me/bubble_shooter_mania_gameaqywq.pdf
    • http://sberbank.link/python_requests_authorization_header_tokenyeaxb.pdf
    • http://swast-group.website/4204898442724vwe.pdf
    • https://cdn.sqhk.co/damapegapi/igodXqM/medufib.pdf
    • http://duplicwcnj.space/42328238769l7txo.pdf
    • http://draiwenstore.online/supplementary_guidelines_on_vertical_restraintsy6lum.pdf
    • http://reduslimitalia-ufficiale.site/fupigesonoxelwi3eh.pdf
    • https://cdn.sqhk.co/viwiratoposu/A8jiYDk/best_dress_up_games_for_pc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://voratibix.rf.gd/smackdown_highlights_this_week_bleacher_report.pdf
    • http://beninoduvewer.epizy.com/laporan_pendahuluan_meningoencephalitis.pdf
    • http://bopavepep.epizy.com/is_fl_studio_12_better_than_20.pdf
    • http://xezedif.epizy.com/32613700965.pdf
    • http://nabunuwo.epizy.com/how_to_clean_the_keurig_2.0_coffee_maker.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_off00011b50.bin
aeb039aad5e5954b2b13efe4bf3a36f71b59ef903e19faf86869cb7f0e2db757
pdf-font-stream PDF embedded font (sfnt) at offset 0x11B50 5152 bytes
font_01_sfnt_off00012ca9.bin
0d67366b9e7aa4c844c508ff27fd1cad74f6b67f9f3da8635344c3c2a79dfbd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x12CA9 10516 bytes