Malicious PDF — malware analysis report

Static analysis result for SHA-256 963003076a769739…

MALICIOUS

PDF

106.6 KB Created: 2020-12-19 05:08:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e2e1ff9547f2d0e2b48e6c6cddf5820 SHA-1: 164c73e82c519dc4b95b384a18db41f87282d73b SHA-256: 963003076a769739e914d63ed46c1ee5885f9928b03f0890d03d76b2d4f4aacc
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://gettraff.ru/strik?utm_term=sid+cosplay+soul+eater'. While no scripts were extracted, the PDF structure and the malicious link strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9746

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/strik?utm_term=sid+cosplay+soul+eater
    • https://bipinutafo.weebly.com/uploads/1/3/4/3/134358532/012ec4e0df6dc.pdf
    • https://viwutexotopuj.weebly.com/uploads/1/3/4/5/134522905/zofegujuruvum_duxutujoxuvisep_duxizurupa.pdf
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/7936711.pdf
    • https://widosutolitidaf.weebly.com/uploads/1/3/4/8/134847614/cc7cc70.pdf
    • https://cdn-cms.f-static.net/uploads/4426944/normal_5fa397621947f.pdf
    • https://vuteduwezo.weebly.com/uploads/1/3/4/3/134336695/tugimap_funesovelelu_vumuv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static1.squarespace.com/static/5fc0052111f6a4198480c96b/t/5fcd9f0f6f0099009e7f7f02/1607311120097/24500083478.pdf
    • https://s3.amazonaws.com/juduk/crossword_clue_word_with_a_wave.pdf
    • https://uploads.strikinglycdn.com/files/573ab062-cc79-4e07-a7ba-603cda82f783/46603816374.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00011ee9.bin
d68eba8547aaf531068d95d1457cf830899f0d0a38bbdde696115dfc4fd3ef49
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11EE9 11064 bytes
font_01_sfnt_off000142cb.bin
25474f8a0c87393636db078332983b0d74689847566fd2d2591bb934fe5affea
pdf-font-stream PDF embedded font (sfnt) at offset 0x142CB 5048 bytes
font_02_sfnt_off00015403.bin
1b6023ea1c4e780cba3d8b4ae9da1f40ae61e8ae3f8c20e056b85a04540e4c87
pdf-font-stream PDF embedded font (sfnt) at offset 0x15403 11164 bytes
font_03_sfnt_off000179e9.bin
6c511cd2548aab1566dad8f54fccf2be4cd056cf5a4d5d56937977fde9165995
pdf-font-stream PDF embedded font (sfnt) at offset 0x179E9 16132 bytes
font_04_sfnt_off00018edc.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x18EDC 4324 bytes