Malicious PDF — malware analysis report

Static analysis result for SHA-256 999d0f6263b4e053…

MALICIOUS

PDF

75.5 KB Created: 2021-02-08 06:16:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 19f443579d06a313be0977645544c719 SHA-1: 030b0953a95f68064da2ab70aaca073a5bf2468b SHA-256: 999d0f6263b4e0534dcb1b329e63ac54f15b76a03c8a61561910382a4f0582bc
96 Risk Score

Malware Insights

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

The file was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to lure the user to a phishing site. The PDF structure itself is also flagged for duplicate object bodies, a common obfuscation technique in malicious PDFs.

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://leonvi.ru/123?utm_term=were+%252B+past+tense+verb PDF link annotation
    • https://cdn.sqhk.co/remowiwa/ijuAjc4/87080741273.pdfIn PDF document text
    • http://skameyki.club/manualidades_con_botellas_de_cristal9q7fl.pdfIn PDF document text
    • https://cdn.sqhk.co/jodariwem/Agi8T3Y/jukaliwe.pdfIn PDF document text
    • http://worldworkbook.com/74549322300m7dun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418963/normal_5fc7036981216.pdfIn PDF document text
    • http://burrrhey.tech/energean_oil_gas_annual_reportx9996.pdfIn PDF document text
    • http://helplnstagramoffice.com/hardware_id_acpi_smo8800gbge8.pdfIn PDF document text
    • http://megalit-korolev.ru/701841899739pew4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470545/normal_5fed6951b3afc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426541/normal_5fff7c65ea41c.pdfIn PDF document text
    • https://cdn.sqhk.co/busoleva/Bigijgs/sozoluda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464314/normal_5fee8de4efb20.pdfIn PDF document text
    • http://theboldpantsproject.com/bdo_enchanting_guide_reddit93blx.pdfIn PDF document text
    • https://cdn.sqhk.co/jugemito/hs97NJC/fesano.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/vuxirefare/airtel_tv_mod_apk_free.pdfIn PDF document text
    • http://gevewodex.epizy.com/literacy_narrative_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/devil_may_cry_5_boss_guides.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/bennett_hydraulic_trim_tabs_manual.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_off0000ec79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC79 4996 bytes
SHA-256: 84d57daea78a4392e710e113a608131fc3f7bd9365dff577a6711cabba87f565
font_01_sfnt_off0000fd91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD91 10496 bytes
SHA-256: 3c7aa1adcaac8b16d4af64a21971e623a882286fc547e609e27abb5547adb8c8

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