Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c4e607349239772…

MALICIOUS

PDF

70.0 KB Created: 2020-12-18 20:47:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 677424bf79ea7fa4d105cf8685b94f87 SHA-1: 3706a322ce38e087df6aa9771c6b254320b24184 SHA-256: 6c4e6073492397720cac18c8c312bd13b638751ac2208f656148e8ebf7107471
96 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for an external URI pointing to 'https://trafftec.ru/strik?utm_term=free+xbox+one+gift+card+codes+2016'. The document body, though heavily obfuscated, contains text related to 'Free xbox one gift card codes 2016', suggesting a lure. ClamAV also detected this as 'Pdf.Phishing.Trojan'. The presence of embedded URLs and the phishing lure strongly indicate a malicious intent, likely to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?utm_term=free+xbox+one+gift+card+codes+2016 PDF link annotation
    • https://sazagirisama.weebly.com/uploads/1/3/4/5/134585928/7257055.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/fafadowig_mubabozerazud_pawunarutos.pdfIn PDF document text
    • https://paweweribawu.weebly.com/uploads/1/3/4/6/134656346/zafibuvufi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424013/normal_5fcd9e754c2e3.pdfIn PDF document text
    • https://keregejuvuja.weebly.com/uploads/1/3/4/3/134345288/saregusixifade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406782/normal_5fc90e1d29311.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/5fc6562327a199023ada57b2/t/5fc82a62d32d012678ef62f0/1606953572224/download_smashy_city_monster_game_mod_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcbb9339856919c2930471/t/5fdcd980550b0003eb02cb76/1608309122629/lazave.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c71ff10-8da0-4556-983a-1a596f614ed1/64984776265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c641278-75ea-4c38-adab-c60ddcd8529d/81874657003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7098408d-376e-41d0-b8a5-59dff2315837/rixafede.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_off0000d127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD127 5800 bytes
SHA-256: 3a18f0c7ad49e98d097faa69b85ae7e7e51e0d72223b185156c21b13ff2d9ce6
font_01_sfnt_off0000e50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50A 11116 bytes
SHA-256: d754c289f297d94be425144f2304b7ecd486100886c6b8752bec58b661b73421