Malicious PDF — malware analysis report

Static analysis result for SHA-256 f201b973846f1a0f…

MALICIOUS

PDF

70.7 KB Created: 2020-12-06 15:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 36729c1bfc145e4aed067550109f0293 SHA-1: bb468f09e580b1ba963e2dae5c19cdaec0d1ec40 SHA-256: f201b973846f1a0f60b92bdf9121717b40b8cde93238b3f56848bf7840b75db7
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 'traffine.ru'. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to redirect the user to a phishing or malware distribution site, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffine.ru/aws?utm_term=consumer+reports+appliance+reviews+2018 In PDF document text
    • https://static.s123-cdn-static.com/uploads/4421352/normal_5fc3fb7e91bee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452171/normal_5fb90b48a09cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455208/normal_5fc5693c2643e.pdfIn PDF document text
    • https://bovitala.weebly.com/uploads/1/3/4/4/134497817/2934858.pdfIn PDF document text
    • https://sowosevutab.weebly.com/uploads/1/3/4/3/134311467/9746992.pdfIn PDF document text
    • https://xizidalubatud.weebly.com/uploads/1/3/4/5/134583516/raxiwudefop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc13a23affbf90a66eca3c4/t/5fc546545147b14804df952f/1606764120706/74521141093.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/814c2f4f-481f-4bf8-946a-96e0e8fd0e78/pathfinder_inventory_sheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdfe48bc819f1cf49ed38d/1606286927169/gotudutifusiwinonifowaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b5119849b27a00a8296b/t/5fc937698ae5b409ccaa3586/1607022444677/mastercraft_building_and_developments.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aff94a96-f970-4009-9589-2135f499aa23/howard_anton_linear_algebra_9th_edition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12af63dfdd95b60d6c240/t/5fc76b043d56556d143d9e0f/1606904580751/92727359842.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_off0000d64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64B 5656 bytes
SHA-256: e3cf8b99d75aca2bfea672b983c75aef9ea1075c352399e0f5d329262b14287e
font_01_sfnt_off0000e980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE980 11208 bytes
SHA-256: 68cebb24f0da0e4d8dcdcf836da34cceb661dba3850ddd64e984623d508d9967

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