Malicious PDF — malware analysis report

Static analysis result for SHA-256 848d1733590245aa…

MALICIOUS

PDF

92.2 KB Created: 2020-12-17 19:26:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 8eab6c4333ba39131af55d0f7c7e4981 SHA-1: 166a5631116a2298bf188df48f5acc58b6ae6c7b SHA-256: 848d1733590245aa7adbc9ef016ea85aaf8e3f76063a19dbb67c6a0c19325405
154 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ggtraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'active assisted movement definition' and is generated by wkhtmltopdf, suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

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://ggtraff.ru/strik?utm_term=active+assisted+movement+definition In 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/f0e55779-5a9b-4bbd-8e50-9626b442f492/56351535004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ba4d3a8-6d32-48b2-8b12-736950abb60e/95084457908.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5808cefa-0fdb-47e8-82f2-4f48a2a913a3/lexuwak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65fdfaef-9d9e-40cc-b47d-8191c99dbfcd/53956780144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4857581-949b-4eff-be61-ec15f5441876/split_movie_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/590e90b1-119c-4c94-b3d8-b1ccb3fdae10/navitech_navigasyon_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52aaec61-b4b9-45d9-ba4f-113b6abb91e1/50285252962.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb60e3df-5b99-4305-8933-6ef78f342cd8/97276390550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d44e8068-9c5d-4bc2-8b0e-c16114385bcd/puzajib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6b5cb161f8068bec97957/t/5fcd0d230ab5d62febf6f957/1607273775654/f1_tv_coverage_canada_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51b24e67-6a35-4ccb-9b37-413b993ed0b7/zavawadebokatowumolikige.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc645e29955c744b55fee38/t/5fd0556c26d54b3c06cfccf4/1607488877295/4460902106.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c19f9834-4d7b-4299-aa1e-945db5f2e437/30274255122.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_off00012e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E45 5088 bytes
SHA-256: d766b93286e8e0f2c18d4c6e6179ce92f4cb401983233807d15287223372a7c5
font_01_sfnt_off00013f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F91 11120 bytes
SHA-256: 6b95b6f483000062a70cebe03dc75af4715cd1c0d54c20b2f668b5fce2787d43

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