Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2e92c31e04c238…

MALICIOUS

PDF

88.4 KB Created: 2021-03-27 16:48:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 047dcde0c5d688d585d1237891501923 SHA-1: 78acb2afbd528c5a03269cbf9e3871434714a840 SHA-256: cd2e92c31e04c238b4d283a41670660e6e72d1b41ed917e31fe16e6c119a72c5
144 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely used to host or deliver a secondary payload. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct the user to open a password-protected archive, a common tactic to evade gateway scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/strik?utm_term=manual+de+gram%25C3%25A1tica+inglesa+pdf
    • http://zoxodur.sportsontheweb.net/32452148041.pdf
    • http://itverys.space/bloom_and_lahey_modelalvl5.pdf
    • https://static.s123-cdn-static.com/uploads/4393359/normal_5fdff998c78da.pdf
    • https://static.s123-cdn-static.com/uploads/4404490/normal_5ff47b82b8315.pdf
    • http://rijazozetofovi.22web.org/5200357656.pdf
    • https://cdn-cms.f-static.net/uploads/4452157/normal_5fd34a7e1860e.pdf
    • https://cdn-cms.f-static.net/uploads/4481836/normal_600b4bf545c2b.pdf
    • http://rozewevojalel.sportsontheweb.net/ahsan_ul_fatawa.pdf
    • https://cdn-cms.f-static.net/uploads/4484636/normal_604f296ad873b.pdf
    • http://playmarket-online.com/how_many_carbs_in_krispy_kreme_donut_holesr7enu.pdf
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdf
    • https://cdn-cms.f-static.net/uploads/4394077/normal_602b9a5d1917d.pdf
    • http://titanovyi-filtr.ru/educational_psychology_book_in_urduw915l.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fuvogel.rf.gd/honda_generator_eu3000is_oil_change.pdf
    • http://vozuxekeve.rf.gd/politique_budgtaire_dfinition.pdf
    • http://zemodisiriv.epizy.com/46602026229.pdf
    • https://8909b315-4d59-4940-aabf-0fdaa532e0ad.filesusr.com/ugd/4542d9_69c0d882e24543a789aaf24bfc3478c7.pdf?index=true
    • https://f770b3d7-c897-40e0-9323-5ad0abd91552.filesusr.com/ugd/1fa6dd_faeb65e905014cd994d0da439c6ce363.pdf?index=true
    • http://degivenumi.epizy.com/gatefold_card_template.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_off0001166b.bin
d2f411a1cdd309461c3fc5b71bbf1a4e978948520780160e9a929e1ff62b6439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1166B 5712 bytes
font_01_sfnt_off00012946.bin
89d52cfe402025c2ebbb8d6135a99498414fe6119e885e54e13a12a1ee4ed03e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12946 13172 bytes

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