Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc081988773e8947…

MALICIOUS

PDF

77.0 KB Created: 2021-01-06 06:36:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e14059d782841b42337366b843a15c0b SHA-1: 7edb9808c74e0e2b194ffe5a284c9ad4a549fba2 SHA-256: bc081988773e89477b8d5e2bb837f08126632a613a82694611f331c09f5cb846
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded content, though heavily obfuscated, suggests it is intended to masquerade as legitimate instructions to trick the user into clicking the malicious link. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

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
  • 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://traffking.ru/123?utm_term=kaidaer+mini+speaker+instructions In PDF document text
    • https://static.s123-cdn-static.com/uploads/4403823/normal_5fded5cde8bb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f8729fbd939a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416128/normal_5fc0920a7cd83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459469/normal_5fa26ded3c9e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366949/normal_5fe49d18855c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501654/normal_5fe64f715aa1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f8709ad963de.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/2a01a3b2-0df6-4952-87ba-064fa04123cd/zojirushi_bbcc-x20_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/30455163887.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/indesign_programming_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9b4afe1-989d-4870-b195-be7a155be7f2/36_inch_microwave_ge_profile.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/32239833350.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/38126505075.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/99418147821.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_off0000f127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF127 5220 bytes
SHA-256: 5ea315a41200ef17c2533412c4eb3c300f0c399a0ce9b07c21fac848193c177c
font_01_sfnt_off000102d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102D4 10492 bytes
SHA-256: e9df46aeb9ab090707d641775d993d287078a55eab804a7ce2825c8ed2e9984d

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