Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22fa1eade0bb9d2…

MALICIOUS

PDF

85.1 KB Created: 2021-03-18 20:57:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec90fb27f962018d96542f49713d08e7 SHA-1: d8b7492188e6690e4256cb956d2f32c8285ee0a0 SHA-256: e22fa1eade0bb9d22266b7208324217c1ee834bced768bfb6dfe7526f6e41176
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that points to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting malicious sites, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/strik?utm_term=how+much+does+it+cost+for+a+psychiatric+evaluation
    • https://cdn.sqhk.co/vomofizog/JjiAljj/sevadanetewugokamiledebu.pdf
    • http://makamar.xyz/where_can_i_get_the_after_booksk0b9y.pdf
    • https://cdn.sqhk.co/telazaje/jhOjbii/lutanulolejisakelatamumoj.pdf
    • http://myyshooop227.site/mutulexukixawotubunuzew0qz0.pdf
    • http://samyog.ru/dosafinosoguxakob3isdq.pdf
    • http://woxuruko.medianewsonline.com/27380878721.pdf
    • https://cdn.sqhk.co/pawanipol/Hhfbjhw/zowoserubiv.pdf
    • http://difulomutanuv.iblogger.org/wegigifodubuteworejiri.pdf
    • http://sotipidikukunow.getenjoyment.net/bewivogobir.pdf
    • https://cdn.sqhk.co/zaviresodew/hjfzggh/snapping_shoals_emc_covington_ga.pdf
    • http://airned.ru/hp_elitebook_2560p_pci_simple_communications_controller_driver3q59y.pdf
    • https://cdn.sqhk.co/kujotukil/cvohbie/21934639858.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zevesijuduma.atwebpages.com/lista_de_exerccios_anlise_combinatria.pdf
    • https://uploads.strikinglycdn.com/files/d69294ca-f887-4289-9bf5-977bfe0bfea9/how_to_say_steak_tartare.pdf
    • https://uploads.strikinglycdn.com/files/c0fe9145-3018-4599-b4b5-f630b37d2f9e/relationships_between_electricity_and_magnetism.pdf
    • https://uploads.strikinglycdn.com/files/74c8b5ba-517d-46eb-89d5-0ab52ee64c4a/family_feud_game_download_ios.pdf
    • http://pogetowem.onlinewebshop.net/46769218986.pdf
    • https://uploads.strikinglycdn.com/files/5503736a-4447-4dcf-b97a-f4084f35ad1c/clasificacin_de_las_cuentas_contables_segn_su_estructura.pdf
    • http://rimaxuj.rf.gd/caller_tune_song_wapking.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_off00010dbb.bin
6d79b1f5095f87cc17645b1e0812820897e3ec415909c96ad44ddf757b258fa2
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DBB 5608 bytes
font_01_sfnt_off000120c2.bin
f78ffc6d044b8eea1a1ab4befd79a0f4110b33a1cb47a4294eb1a63d6efd0694
pdf-font-stream PDF embedded font (sfnt) at offset 0x120C2 11284 bytes