Malicious PDF — malware analysis report

Static analysis result for SHA-256 321a0eb61b591e6c…

MALICIOUS

PDF

81.6 KB Created: 2021-03-20 03:26:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0ad443abe1336cf8e51cc1d0cc30a17 SHA-1: b900ecb393d9fe2a1ed1d7aa8afab4fd8d56840d SHA-256: 321a0eb61b591e6c820dbb5c0d13a819ad6f749e45642ff7d3d9a611b289014c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to 'ffxiv level 60-70 guide', indicating a phishing attempt to trick users into visiting the malicious URL. No scripts were extracted, but the presence of an external URI strongly suggests the intent to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/wix?keyword=ffxiv+level+60-70+guide
    • http://botavubapisod.mywebcommunity.org/applied_physics_notes_for_b._tech_1st_year.pdf
    • https://cdn.sqhk.co/gegenosuzun/8ihgJih/smart_scan_scanner_free_files_scanning.pdf
    • http://lesuxofozadize.mygamesonline.org/free_printable_clock_face_with_hands.pdf
    • https://static.s123-cdn-static.com/uploads/4386829/normal_60074ae9a9a17.pdf
    • https://vitovoraf.weebly.com/uploads/1/3/1/1/131164311/0f1339dfbd63ec.pdf
    • https://cdn.sqhk.co/goxobuve/cgiA8IR/likatusamaxiv.pdf
    • https://zodekunomaxuj.weebly.com/uploads/1/3/0/7/130739112/5405708.pdf
    • https://cdn.sqhk.co/netimawifes/ijgjHHf/93928889364.pdf
    • http://nibewubixela.getenjoyment.net/nanebimaxow.pdf
    • http://kifisafobubupo.mygamesonline.org/logiciel_de_traduction_de_fichier_anglais_francais_gratuit.pdf
    • https://nepejudakolop.weebly.com/uploads/1/3/4/8/134876169/xezetonolivud_xovav_xadivigojugakev_tozetonifar.pdf
    • https://cdn.sqhk.co/linotepibubi/8GhhZjd/xusiwafipitad.pdf
    • https://cdn.sqhk.co/mujawiru/bsY4hhf/40663370547.pdf
    • https://cdn-cms.f-static.net/uploads/4388629/normal_604f9036aa5da.pdf
    • https://cdn-cms.f-static.net/uploads/4487381/normal_6022d8114c015.pdf
    • http://mevukavotidu.getenjoyment.net/websters_spanish-english_dictionary_for_students_online.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ae44c8a0-e02e-4a96-9a35-c2c53c67e478/jufapimulisitet.pdf
    • https://uploads.strikinglycdn.com/files/d516d793-1458-456a-a4aa-8ae2be0454ff/rinnai_2001_gas_heater_manual.pdf
    • http://vejegaba.atwebpages.com/42575159771.pdf
    • http://luvabokinoleg.onlinewebshop.net/11th_bipartite_settlement_for_bank_officers.pdf
    • https://uploads.strikinglycdn.com/files/74e28917-b229-4028-a8bf-12a793b9d9e4/elric_of_melnibone_books_for_sale.pdf
    • https://uploads.strikinglycdn.com/files/e681f222-3b81-4e4b-b144-b5d65129a6c4/sunurewanegawesu.pdf
    • https://uploads.strikinglycdn.com/files/dafc6e6b-d371-4b34-84d8-da5955c185dd/how_to_replace_igniter_on_weber_spirit_grill.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_off0001015e.bin
8af763616a057c4c9d958f0d625dde5a7e7598fbbd1ba1fb3d8ee6be7c03a5e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1015E 5084 bytes
font_01_sfnt_off000112e6.bin
4aaf8979cb606c6e3d2d7b46ca9b9c60d0edfdc5a27fcf0c0e652281302b6500		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112E6 10820 bytes

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