Malicious PDF — malware analysis report

Static analysis result for SHA-256 7745f28b0e0007c1…

MALICIOUS

PDF

83.5 KB Created: 2021-04-03 10:46:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ea5bec0b112a70d907554c7adc71ce7 SHA-1: 8920b867877aa3fd16b7e747a469282cd7728a2d SHA-256: 7745f28b0e0007c18ce60d644f929328147f624a63c5ab8f6dc5bb04023a9c92
96 Risk Score

Malware Insights

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

The PDF file contains metadata and heuristics indicating it is malicious, specifically flagged as phishing by ClamAV. The document body, though heavily obfuscated, suggests a lure related to a 'Schengen visa germany form'. A prominent external URI, https://soxebez.ru/123?utm_term=schengen+visa+germany+form, is present and likely serves as the malicious payload delivery or phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://soxebez.ru/123?utm_term=schengen+visa+germany+form
    • http://toximakuvox.iblogger.org/46556163891.pdf
    • http://bafiselavanebep.mywebcommunity.org/personajes_principales_de_la_obra_aves_sin_nido.pdf
    • https://cdn.sqhk.co/modajili/jhs6jjt/copycat_zing_zang_bloody_mary_mix_recipe.pdf
    • https://cdn.sqhk.co/dodalowogiv/29BTwhg/nubexaliwokilogatutabox.pdf
    • http://biweekamnf.com/wexalezaserivukileljpqhg.pdf
    • https://cdn.sqhk.co/lisakopew/dM88sXV/54002590185.pdf
    • https://cdn.sqhk.co/zoluxoni/jj7jeVj/zijedaputelajunodupenozu.pdf
    • http://zumufufup.sportsontheweb.net/vocational_test.pdf
    • http://secureappeal.com/xidomosagi9ej46.pdf
    • http://pegajopakazo.22web.org/marinilak.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wesovipimamino.epizy.com/14423636923.pdf
    • http://povutov.epizy.com/2049095454.pdf
    • https://uploads.strikinglycdn.com/files/a06a0f60-0359-4d9b-b5c1-1b9304df4d7d/mathematical_proofs_khan_academy.pdf
    • https://uploads.strikinglycdn.com/files/a8d1aff4-1a5c-43dd-8b07-9865fda9293e/ledubejom.pdf
    • https://uploads.strikinglycdn.com/files/17aa33ff-5959-47ac-b57b-f8cba7e5ed7a/82867270401.pdf
    • https://uploads.strikinglycdn.com/files/96659b91-3952-4153-baf6-b1b3575604a1/sujupapuzopomi.pdf
    • http://repajazofuwide.epizy.com/jujirup.pdf
    • https://uploads.strikinglycdn.com/files/e653fd61-dd96-4033-85e8-ff0d135e08c5/how_many_sarah_plain_and_tall_movies.pdf
    • http://kinutumuzikuji.epizy.com/fujedulukosowu.pdf
    • http://kiwusumusi.rf.gd/14218709876.pdf
    • http://niruvizuzeta.epizy.com/1200_calorie_diet_plan_north_indian.pdf
    • http://feferabi.atwebpages.com/beats_by_dr_dre_studio_3_wireless_headphones_-_matt_black.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_off0000f444.bin
de9b877361c563f24c4af64cdbf4d800ee29ea39d92ee5645b0eeb4e4150c59c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF444 5528 bytes
font_01_sfnt_off000106fb.bin
8b9189fb4c91e325574cb5dcd4e9b616c6ce2b7a1870a7b1a13ca9f68706db0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106FB 10736 bytes
font_02_sfnt_off00012b5d.bin
d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B5D 16060 bytes

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