Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ce40cebd7f8e325…

MALICIOUS

PDF

68.3 KB Created: 2020-11-25 13:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: f91cb301ffd2667c8314fc416cefab00 SHA-1: 6a88316cac17cf34eafa38d2a070b1270d37c2ce SHA-256: 4ce40cebd7f8e325ce058d4fae369f84ca6ebcc75cc16772c4fbd592b7a09d83
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 'ggtraff.ru'. This URL is likely used to lure victims into a phishing or malware download scheme. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://ggtraff.ru/strik?utm_term=gen+2+camaro+for+sale In PDF document text
    • https://zewuxufasebi.weebly.com/uploads/1/3/4/3/134320084/depiwejedu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_5f97789c8f85b.pdfIn PDF document text
    • https://nikokabiliru.weebly.com/uploads/1/3/1/4/131409463/wafidese.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5fb41e95c3084.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://s3.amazonaws.com/vezumobigodub/long_walk_to_forever_kurt_vonnegut_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/vujulovevazumu.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/48951462542.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/absolute_value_equations_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/ximefuximagufilan.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/vamofujefukakinela.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5A9 4852 bytes
SHA-256: f7c8de4957b790bf957b880d70bab39b0c4c11a985effd0863f09801d7341637
font_01_sfnt_off0000c5f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F8 3720 bytes
SHA-256: a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9
font_02_sfnt_off0000d158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD158 10764 bytes
SHA-256: 0aa7560cb25bcad641b16573bad8a752d33dfab633170a42f6bf4a3f1e2323ea
font_03_sfnt_off0000f5f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F3 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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