Malicious PDF — malware analysis report

Static analysis result for SHA-256 beacd3335e98f2dd…

MALICIOUS

PDF

78.3 KB Created: 2021-03-10 10:10:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e56e38cef3e1e2653399b8fdbe23a405 SHA-1: e06087129539ffd0de70646390e757a325abad28 SHA-256: beacd3335e98f2dde5e9f2aa1a7d71f6e185192e4a5bbc59436925df09853112
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to educational materials to entice users to click 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://maypoin.ru/award?keyword=best+german+grammar+book+for+beginners+pdf PDF link annotation
    • http://fakutewed.22web.org/bosevonebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486350/normal_5fdf62f74ad0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457586/normal_6004cb78dc1b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460723/normal_5ff64b89c72a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409107/normal_5fdd1ed42d363.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/gghZahF/super_slow_mo_galaxy_s9.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/dsvTgKr/83704162904.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_5fd97a0634082.pdfIn PDF document text
    • https://cdn.sqhk.co/tudobele/Yifgggi/73274052605.pdfIn PDF document text
    • https://cdn.sqhk.co/zajujinul/ibihjeE/rafosowudewewujudali.pdfIn PDF document text
    • https://cdn.sqhk.co/vavuvalegel/4Gjh8Kp/sinhala_dj_sample_pack_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zalogifewoje/bCm5ibs/word_search_solver_download.pdfIn PDF document text
    • https://cdn.sqhk.co/febenanedibu/hrtihER/dingo_ate_my_baby_movie_quote.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zijiwaras.onlinewebshop.net/27675582593.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/build_my_life_worship_song_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b7a338c-d1c4-418f-b8b0-b307928a5bdd/74139102707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50440c1c-9e2c-438f-a12d-ff8462fe8664/overlord_light_novel_volume_4_download.pdfIn PDF document text
    • http://desakoda.rf.gd/gulunabupipabarenoxadek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08ae4389-400a-4971-9cf2-72fac42a11c1/yardman_snowblower_carburetor_diagram.pdfIn PDF document text
    • http://kuzekatowo.rf.gd/taleget.pdfIn PDF document text
    • http://kegebezevenaku.epizy.com/jofazokesoz.pdfIn PDF document text
    • http://mojenuj.atwebpages.com/guia_do_estudante_atualidades_2020_download.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF457 5584 bytes
SHA-256: a46263b266ea8ef9d70c3f39f28dc2a31895966029b131a6624ec3c2d71c5520
font_01_sfnt_off0001073d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073D 10608 bytes
SHA-256: fc45b6051ed1281beda4c30efd9575c74e0454bc22c5bb5f747811caca8115cb

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