Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ec740460144d12a…

MALICIOUS

PDF

77.8 KB Created: 2020-12-20 19:06:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe0f3a4df889f10e122c1994b33242a5 SHA-1: 145d5ef64a050cf0b42c6a9c2e8da92c770e1f52 SHA-256: 5ec740460144d12a04558d5807b0366586395266835c7acea8a8832fa4d75d1b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'ggtraff.ru'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=dr+d+david+schultz+punisher
    • https://xazezegusi.weebly.com/uploads/1/3/4/5/134505133/4213708.pdf
    • https://likimipezerejo.weebly.com/uploads/1/3/2/6/132682052/liwuregozat.pdf
    • https://denepuwukofakar.weebly.com/uploads/1/3/4/3/134316944/7447792.pdf
    • https://leputixoted.weebly.com/uploads/1/3/2/6/132683438/2339750.pdf
    • https://ranuregobaxamig.weebly.com/uploads/1/3/4/8/134889764/nedinunetoneg-fegivuru-rokodor-zitolasezoxul.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tadovu/learning_teaching_jim_scrivener_descargar.pdf
    • https://uploads.strikinglycdn.com/files/902abcd1-4de6-4a29-bd79-5078405c71d3/super_snap_shofu.pdf
    • https://uploads.strikinglycdn.com/files/d5288501-808d-4078-867d-2128bf3ba5a7/valentina_y_juliana_english_subtitles.pdf
    • https://uploads.strikinglycdn.com/files/eb39d1b4-4bdf-4c41-8e26-3191293d8898/vcarve_pro_8._5_crack.pdf
    • https://s3.amazonaws.com/wajibile/manual_de_conducir_de_nj.pdf
    • https://uploads.strikinglycdn.com/files/663fad12-1406-4c34-bd1f-49647dd5e814/podesipekatafulo.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3f4.bin
438a4bc61bc84be5cb3900fa8e715e4f0022149a1de394f736c5e9f17461a902
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F4 5044 bytes
font_01_sfnt_off0000f523.bin
c265626ac92034f8ee9ec8f72c15d211f5a268a96747d7419940d323fd962fd0
pdf-font-stream PDF embedded font (sfnt) at offset 0xF523 11800 bytes
font_02_sfnt_off00011c7b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x11C7B 4324 bytes