Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d562b85d569436…

MALICIOUS

PDF

75.5 KB Created: 2021-03-23 08:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d4792775e94f4de78178a667504b7390 SHA-1: ec01fc13f442ac241cb3f94562865e0b0d53538a SHA-256: 02d562b85d56943681e75a11475dba9f533c64f2d6c2957b7ebc80e6d66a39f2
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 suspicious domain, identified by heuristics as potentially malicious and flagged by ML classifiers and ClamAV. The document body, though heavily obfuscated, suggests a lure related to game strategy, which is a common tactic for phishing or malware delivery. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=brave+frontier+squad+building+guide PDF link annotation
    • http://wipunemobak.mygamesonline.org/carquest_wearever_gold_ceramic_brake_pads_installation.pdfIn PDF document text
    • http://about-fb-support.com/dapegopuwuvew4m8j.pdfIn PDF document text
    • http://mipexalazalekab.getenjoyment.net/42371728313.pdfIn PDF document text
    • http://goxamid.mypressonline.com/makalah_regulasi_dan_standar_akuntansi_sektor_publik.pdfIn PDF document text
    • http://samafutanub.mypressonline.com/chapter_13_to_kill_a_mockingbird.pdfIn PDF document text
    • http://imedo.ru/hp_laserjet_4050_print_driveruyl67.pdfIn PDF document text
    • http://duxinivodozular.mywebcommunity.org/cathode_ray_oscilloscope_questions_answers.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/jobavo/49447266103.pdfIn PDF document text
    • http://metorudadoz.rf.gd/is_vizio_smartcast_a_smart_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/belmont_parks_and_recreation_activity_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/roblox_aimbot_2018_phantom_forces.pdfIn PDF document text
    • http://palelezugob.onlinewebshop.net/alpabetong_filipino_abakada.pdfIn PDF document text
    • http://gapoxuvopa.onlinewebshop.net/jexesi.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/17001058015.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/76839758453.pdfIn PDF document text
    • http://nivuzujanux.myartsonline.com/atlas_of_anatomy_gilroy_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/lord_of_the_rings_4k_gift_set_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/forij.pdfIn PDF document text
    • http://balukop.rf.gd/fafonasasogumatatidafevaf.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/25928238732.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE974 5452 bytes
SHA-256: 7d6e70a5937f4b2694db540edac0d9de80071a89827d69a95871b7dc234224e4
font_01_sfnt_off0000fc09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC09 10752 bytes
SHA-256: 7552328da8ca7d541281097f13f95ce48745ae987de411718d8bf0be3b95e12c