Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf3b80481937fd6…

MALICIOUS

PDF

83.0 KB Created: 2021-03-12 18:56:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 3896d60e898f700bf5242a5d55edddc1 SHA-1: 6f684031ae910042bec53d1593539ceada0d6045 SHA-256: faf3b80481937fd6f1b349743849c32ab78a03f3e20c51608c4606e6f05cfb26
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a domain associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into visiting the URL for credential harvesting or malware download. No scripts were extracted, but the presence of a suspicious URL and the document's metadata suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://mezovuduw.ru/123?utm_term=android+9+activate+developer+mode PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444114/normal_5fe15a212dbf1.pdfIn PDF document text
    • http://copyrightmediahelp.com/learn_english_application_for_androidway2n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374517/normal_60012affaa464.pdfIn PDF document text
    • http://stroymarketmetal.ru/93596631358u04uk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451932/normal_6025a28544dfc.pdfIn PDF document text
    • http://topfrag.rip/84244191097wl7pf.pdfIn PDF document text
    • http://peuer.xyz/lisowixiwunubvtfio.pdfIn PDF document text
    • http://manybigs.space/2014_rockshox_revelation_service_manualwie84.pdfIn PDF document text
    • http://belplitka.ru/itools_for_pc_64_bitni4bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470014/normal_6022a22c9e02e.pdfIn PDF document text
    • http://presalon.xyz/wikoxafaderakv3gtx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xixonu/populao_de_angola_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/xixiluxitedemumogiwex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89825972-ee72-46fb-88ea-3eeab35930e0/new_yorker_magazine_frame.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/android_accelerometer_sensor_sampling_rate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bf6b62c-0e01-407c-a65b-647488f769c9/cuanto_es_3_4_de_pulgada_en_cm.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/90466774563.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/30319578717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4c9d3eb-0d25-407a-a099-16efdb6878b6/91251930896.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceb09abb-f805-404e-8f2d-e4e599c1834a/what_type_of_oil_for_generac_16kw_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/sistem_informasi_akademik._unsoed._ac._id.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/5925297034.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/vujijufunutenad.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/17817046756.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73ffa294-aced-44ee-acef-62745938c7d2/17290640341.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF345 5244 bytes
SHA-256: cbcaf8e28c48fcc4ba88569aa0719a3c442669c1aa76b7cd75541e9e34879532
font_01_sfnt_off00010511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10511 10884 bytes
SHA-256: d2def430066311ba0733a8e7792e4e4f3ca07afe63af24d88f4d36808fe2f005
font_02_sfnt_off0001298f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1298F 16028 bytes
SHA-256: 8345d1cc2b6b461b856d0454e2cf67edf5851291b6d0ebf21a7da0c9813a2b7f

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