Malicious PDF — malware analysis report

Static analysis result for SHA-256 415e6362f53355fb…

MALICIOUS

PDF

73.9 KB Created: 2020-12-17 05:26:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 05ee15dae6ef06e1176dce036cc9d248 SHA-1: 2025f7e53787b481bbc61a8dfd158f39eb7fbfed SHA-256: 415e6362f53355fbe84cd1e02183c1b9c032261f027660dd3012a39d5e13b367
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 'ggtraff.ru'. ML classification and ClamAV also strongly indicate maliciousness. The embedded URL likely serves as a lure to download a second-stage payload or redirect to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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=synthesis+crafting+recipes+poe In PDF document text
    • https://cdn-cms.f-static.net/uploads/4528260/normal_5fbc93a3c6202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462351/normal_5fda888a4c0de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461485/normal_5fa834eeed8ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368762/normal_5f88f4cbb6e17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446642/normal_5fa54eb1c4029.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384645/normal_5fcd88508861b.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/5fc13274cd1e280355d63052/t/5fcb3995b495bd20281e2ff4/1607154070048/29538780221.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/onida_android_tv_remote_not_working.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0052111f6a4198480c96b/t/5fc1361d9b1ed0353807da75/1606497821439/dujesu.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/zubowovopadobidu.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/android_sdk_28_release_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/wugejapalijifu.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_off0000d5ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EC 5448 bytes
SHA-256: 3be3dc4b17e5a54ef3d4053d30528a75dca336335a22dd3fee24a6679176901b
font_01_sfnt_off0000e884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE884 15880 bytes
SHA-256: afa7d4074d2cc9d066547341eb53876c399c3f7bc265d376da75a88fabcdd7a6