Malicious PDF — malware analysis report

Static analysis result for SHA-256 411e0f44f8a66419…

MALICIOUS

PDF

78.5 KB Created: 2021-01-09 08:03:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d0f084f4d3ad3ea1e17ff4dd29edcece SHA-1: eb982e65f6e139c0ba4d7561fe0d1e658e4a7ee8 SHA-256: 411e0f44f8a6641901abf900f1ede39a74626769b05c76a63152164e6fc29e89
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'traffmen.ru'. This indicates the document's primary purpose is to lure the user to a potentially malicious website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=the+mind+of+madness In PDF document text
    • https://cdn.sqhk.co/birenejar/phjZgiI/rizalakadowosumikexirumil.pdfIn PDF document text
    • https://zijixowopuza.weebly.com/uploads/1/3/4/5/134524639/vagusokaxapupe_posovopof_mefavojajizoni.pdfIn PDF document text
    • https://zobirifojufegot.weebly.com/uploads/1/3/4/3/134374070/miguveb_vipivukexaguxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375885/normal_5fd175a3256e6.pdfIn PDF document text
    • https://cdn.sqhk.co/jekefebiba/Pu0feig/wukemowatuzepijode.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408170/normal_5feb101ed5e68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417675/normal_5fcb0ba790457.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454301/normal_5fc3eb4560d7f.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/nilititonawafim/mixijat.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_off0000f55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55A 4968 bytes
SHA-256: d2967f6e65907cb1b004e9e88577c18fe322aeb25c1f87bfa7b67f83b22b381b
font_01_sfnt_off0001061b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1061B 12236 bytes
SHA-256: d3fe0d7810932d58c5115d80534bd0bbf2dfbca880ddfcee2ce8c460f11e7af1

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