Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a46bba61993d97e…

MALICIOUS

PDF

90.0 KB Created: 2021-05-24 21:42:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7a79babf5e899f1de2a4dc07b9a8b824 SHA-1: 5d0309f4fa95e37e3a70c37973706eeaa847bb7b SHA-256: 9a46bba61993d97e6691791af0b9ee892ef017230ef26c9a729ab80519e14cce
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'hydraulic pipe fittings'. No scripts were extracted, but the presence of an external URI and the ML detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=hydraulic+pipe+fittings+pdf PDF link annotation
    • https://babobulelemin.weebly.com/uploads/1/3/5/3/135344535/zadana.pdfIn PDF document text
    • https://zeduwekikozive.weebly.com/uploads/1/3/6/0/136050246/5093128.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474759/normal_5fca9c80110be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427528/normal_60252565abb30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450244/normal_600f11054e7e5.pdfIn PDF document text
    • https://sasadopebob.weebly.com/uploads/1/3/5/3/135324308/vexumaw-batoviwuma-lamixulukoko-ruxetuzup.pdfIn PDF document text
    • https://sepuvomaxobaba.weebly.com/uploads/1/3/5/3/135311468/3860660.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/fde1682a-2af2-41cf-aaaf-94ae539f6836/52219409764.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/15719161002.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/dofinet.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/a5_brochure_template_psd_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cc991fa-e401-4ff2-a654-e93e98aba977/29978297169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab4e1a81-e448-41bc-aad6-db91acd6865c/the_collector_2009_ending.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/grade_4_english_worksheets_k5.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/xomigenitugavuxeduvajuvub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a60eb75e-446d-40ce-8070-2ecdc8fc0f6b/4938541427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cd0816e-8226-423c-8040-196be3b209b2/white_fang_of_the_leaf_fight.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/dash_diet_plan_for_vegetarian_indian.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38eb4e80-b17e-4bbd-8615-6c36b63aee26/37181005707.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/tepipo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6E 5160 bytes
SHA-256: f9a8540692f7108f3c42f50e0ce6f6db43d6f3b4ba7af932fa879e4796e29486
font_01_sfnt_off00010e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0B 11776 bytes
SHA-256: 1fe0a6c36f47b4df33ba409f703051d2cc82f1bcebac2ec80627e29fe4794659
font_02_sfnt_off00013695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13695 16252 bytes
SHA-256: 183ce217ca1bff23049bf561ecf963cfe393da47ecae894a96038267042ae0fa
font_03_sfnt_off00014c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C08 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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