Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0798a9a851f11d5…

MALICIOUS

PDF

77.9 KB Created: 2021-03-10 18:15:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f558b4c62cdd9d83b30e895383850b6b SHA-1: bbc38fdf065959c313fc36b87b2f7445d2379545 SHA-256: a0798a9a851f11d5719586a46126d128a6db5790bf489532db5bc739aa86eade
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to host a malicious payload or phishing page. The document body, though heavily obfuscated, contains text related to a 'love dare challenge', suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xezojetit.ru/aws?utm_term=love+dare+challenge+day+1
    • https://cdn.sqhk.co/detatakev/Rjchcvx/free_sheet_music_zombie_love_song.pdf
    • https://jolesebadula.weebly.com/uploads/1/3/0/7/130740242/xelirijig-gowik-givov-nezolofubanubu.pdf
    • https://cdn.sqhk.co/letinumi/XvidOgi/walevamajerexuvaxuf.pdf
    • https://static.s123-cdn-static.com/uploads/4485579/normal_5fdc9a9beba58.pdf
    • https://gafonubizaragu.weebly.com/uploads/1/3/5/3/135346264/tigamevebulikew.pdf
    • http://masajsalonunuz.com/ejercicios_perspectiva_caballera68ne8.pdf
    • http://store50off.info/minecraft_flux_b11_free_downloadklllg.pdf
    • https://cdn-cms.f-static.net/uploads/4463560/normal_5fd15525ab250.pdf
    • https://cdn-cms.f-static.net/uploads/4425492/normal_5fea3570368db.pdf
    • https://jizanisa.weebly.com/uploads/1/3/5/3/135386656/caff88e2749.pdf
    • http://tojebaragokib.22web.org/75140370178.pdf
    • http://brumbum6.xyz/basic_engineering_circuit_analysis_190hld.pdf
    • https://cdn.sqhk.co/pujixefan/jgegdig/raxaxef.pdf
    • http://lnstagramverifiedsbadgeform.com/is_simply_wall_street_reliable71juq.pdf
    • https://cdn.sqhk.co/jefigujaxev/i7aUKz8/cheat_cafeland_android_2019.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kajufikuxididon.rf.gd/bhangarh_fort_video.pdf
    • http://zikuwopuduzowe.epizy.com/gimaxisuwupo.pdf
    • http://kaxanelasomitov.rf.gd/rogers_diffusion_of_innovation_theory_2003.pdf
    • http://lunofalogejutu.epizy.com/bholi_si_surat_video_song.pdf
    • http://sumabaxesopev.rf.gd/52171657989.pdf
    • http://vorawaforase.epizy.com/39215870578.pdf
    • http://mixexomamag.rf.gd/jagisolosulosolu.pdf
    • http://kopareko.rf.gd/posunawawejetuzetixun.pdf
    • http://vodugesivizere.epizy.com/gafef.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_off0000f4f2.bin
878a687db4c54c158c2fafb6f3448a9aeea831e5c49e4d640961e458bdd78708
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F2 5180 bytes
font_01_sfnt_off0001069e.bin
e55a9db45cc796e62e4d3e17e57de8e34afc9b3d0d8a0bd65fbc1be4a9b10f2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1069E 10320 bytes