Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3eed9c7f3800b05…

MALICIOUS

PDF

86.3 KB Created: 2021-03-18 06:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a917bde4f753538e2c72367fc275cac0 SHA-1: 32fa27ed164eb737d3ad3ecce8a980a42fa3bf93 SHA-256: e3eed9c7f3800b05c5da15e86773a52e276fb95f9285152baf95c9598e7f061f
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a lure for a phishing attack. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, suggests a theme related to calculators or proportions, likely to trick the user into clicking the malicious link.

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://leonvi.ru/wix?keyword=proportion+in+triangles+calculator
    • https://cdn.sqhk.co/vibebexez/ct2krq1/3_doors_down_away_from_the_sun_tracklist.pdf
    • http://klosheff.xyz/40129747425tjsrg.pdf
    • https://cdn.sqhk.co/zoburawava/dqzFuha/kitchen_family_room_combo_flooring.pdf
    • https://cdn.sqhk.co/muzolorakow/jbhasge/photo_studio_buddy.pdf
    • https://cdn.sqhk.co/kosenopelid/jiEjjge/65694648292.pdf
    • http://kamikofonem.mygamesonline.org/xifufadi.pdf
    • https://cdn.sqhk.co/puranajav/hhYibv5/gusaredarumujusogitojoj.pdf
    • http://kefets.xyz/super_mario_land_3dszld69.pdf
    • http://sandiego-podcasts.com/disoloveb1a94m.pdf
    • http://letinebab.mywebcommunity.org/lurom.pdf
    • https://cdn.sqhk.co/xolovagi/iihhhib/gamebanana_cs_go_bhop_monster_jam_b1.pdf
    • https://cdn.sqhk.co/xujurovemu/hqziihb/77213090161.pdf
    • https://cdn.sqhk.co/sunomedude/LihIejb/random_group_maker_excel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tabobujimo/what_if_netflix_episode_6_recap.pdf
    • https://s3.amazonaws.com/marimejerebo/36950457049.pdf
    • http://jigisasamupor.onlinewebshop.net/parolamamodaputaluvemoz.pdf
    • http://doveweluzabakiw.rf.gd/witivarulurudakupimozog.pdf
    • http://pozidijapepore.atwebpages.com/20859359572.pdf
    • https://s3.amazonaws.com/babetafaperaxov/mubumitoj.pdf
    • http://molodetagako.epizy.com/swedish_house_mafia_albums_free.pdf
    • http://simabox.epizy.com/1031868989.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcee.bin
1c03bb91258a5b42578c31cb339b59f578fd8879ce5133596c374fa39511d5e3
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEE 5100 bytes
font_01_sfnt_off00010e5c.bin
977153213276a0302b522702c35310afff6f896919fde402d625530dda2635bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5C 11624 bytes
font_02_sfnt_off00013669.bin
113f28b95d093ed21f756cb3c801fbe9648727517da35918de4a893a2dd7fd77
pdf-font-stream PDF embedded font (sfnt) at offset 0x13669 16276 bytes