Malicious PDF — malware analysis report

Static analysis result for SHA-256 30807af557ff6f52…

MALICIOUS

PDF

76.9 KB Created: 2021-03-29 18:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d20bbf55ecc546252dc8cc8f736bd0f6 SHA-1: 8c31ff24beeaef97a7e1927267536ad7ea52634b SHA-256: 30807af557ff6f523d82d510839cdc19fb831d7f538f7fbe47cdaa4c783e59c7
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://fokemale.ru/wix?keyword=chemistry+review+worksheet+pdf PDF link annotation
    • https://cdn.sqhk.co/xulawajikigi/9hcoIxn/summon_dragons_redeem_code.pdfIn PDF document text
    • https://dekamukovesu.weebly.com/uploads/1/3/5/3/135324216/2212142.pdfIn PDF document text
    • https://cdn.sqhk.co/musezikuzapi/phbtijC/punawasuzarumuw.pdfIn PDF document text
    • https://guxodobozit.weebly.com/uploads/1/3/4/3/134333536/9345001.pdfIn PDF document text
    • http://wibofot.22web.org/zukuxavupafekew.pdfIn PDF document text
    • https://sewigidafison.weebly.com/uploads/1/3/5/3/135316790/ditabupomeme.pdfIn PDF document text
    • https://tisirobe.weebly.com/uploads/1/3/4/6/134699904/afc916e3b1ede.pdfIn PDF document text
    • https://cdn.sqhk.co/sitopizol/dPedDwQ/72076883527.pdfIn PDF document text
    • https://xibimitavidin.weebly.com/uploads/1/3/1/8/131871740/fukureru.pdfIn PDF document text
    • http://nugekurobeju.iblogger.org/lake_guntersville_fishing_report_facebook.pdfIn PDF document text
    • https://zeteleginogegop.weebly.com/uploads/1/3/4/5/134526156/meralowopoxutur.pdfIn PDF document text
    • https://sekorora.weebly.com/uploads/1/3/4/8/134856449/fodorozuneva_jugilunaduwufit_wonuvofo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/955a4b00-063b-4add-960f-97d18155d33a/how_to_mix_music_for_free_on_the_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/zazazulu.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/schumacher_battery_charger_sc-10030a.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/posuxaximo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be975273-b8ae-45ad-80ad-6d53f10ad5fc/tuxojazesurafevebuketaja.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/nuseduxes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8c2a871-0230-4098-be17-ed3aff669682/tedim.pdfIn PDF document text
    • http://rudowaxenesi.rf.gd/lubalotokekogalif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf54e2c3-53ba-4ae4-9507-ea6e8fecabe3/litedijawofad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/340a7994-1d91-4bea-9301-aa0c4ed08028/why_is_knowing_yourself_important_brainly.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/vizio_d43-c1_remote_app.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_off0000ef31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF31 5264 bytes
SHA-256: 04cd643e5a7524f9b9d5db793f4be5e916b18517ff8956b460004a24ae07f434
font_01_sfnt_off00010107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10107 10916 bytes
SHA-256: dd1141346c29eaec5f878ca64cd69914bd720a881b086cb7916bbe13b9361ea8

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