Malicious PDF — malware analysis report

Static analysis result for SHA-256 660198d88f51ae0a…

MALICIOUS

PDF

74.3 KB Created: 2021-02-14 08:27:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5f1d53b646a317da9b7e7fab3ad6bfc2 SHA-1: 381f5097c0e657f14998a6459a0badd9b127940a SHA-256: 660198d88f51ae0a68839f0e2de3b8a6b655075a61b8e3badd1f87898ab19882
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Belle plaine high school football'.

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://baarspo.ru/123?utm_term=belle+plaine+high+school+football PDF link annotation
    • https://cdn.sqhk.co/modajili/harjjii/castle_crashers_remastered_xp_glitch_switch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408601/normal_601a3d4b887e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488130/normal_5fde650eb7676.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388279/normal_600a8427d53c0.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/geaOaie/race_car_climb_apk.pdfIn PDF document text
    • https://tivelagazevuw.weebly.com/uploads/1/3/4/1/134131505/sadonowavusifif.pdfIn PDF document text
    • http://vnds-super.space/cidade_dos_etreos_online9y33v.pdfIn PDF document text
    • https://piwaxiru.weebly.com/uploads/1/3/4/8/134882920/zimiwodegalat_xixidagizofin_xinowezegere_xabisomilovo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447888/normal_600bf7726aaa7.pdfIn PDF document text
    • https://jopokiwajisi.weebly.com/uploads/1/3/4/1/134108554/5d8919f566afbc.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/wegojofexuxomofin52ri7.pdfIn PDF document text
    • https://xevefoworux.weebly.com/uploads/1/3/1/3/131380592/gasafifu.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/vavebufevodutob/56234450445.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/emmanuelle_3_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/42768496965.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/83582438119.pdfIn PDF document text
    • https://s3.amazonaws.com/wupagivoz/solitaire_collection_for_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/animation_throwdown_hack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/zixavadejexefikororepe.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_off0000e59b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59B 5368 bytes
SHA-256: b3578347da3ab71237a657e61b60708011cf09ce0e75b69d7e66e0d0d62ee602
font_01_sfnt_off0000f7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E8 10776 bytes
SHA-256: b11b3095dcfb38430ba0129bb6f94e7b1472b5e0ce389ad133df1c8269987f41

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