Malicious PDF — malware analysis report

Static analysis result for SHA-256 32233bcb21ae3270…

MALICIOUS

PDF

34.6 KB Created: 2021-05-23 01:42:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 28c9c1ddb741be06280c4a40ce526e22 SHA-1: d97b9aa3c5a9cc2de4ae0ddfe0ed5a5d8b57ad38 SHA-256: 32233bcb21ae3270c3096e278e96cc6b0b7e6abafbb6cf0660e82022d72d5f7e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising 'free generators' and 'game hacks' to lure users. The primary malicious URL identified is https://netcdn.xyz/app/835599320/free-tiktok-likes-generator-game-hack. The document also contains other embedded URLs that point to potentially malicious PDF files hosted on abst-brandschutztechnik.at. The presence of these lures and redirectors strongly suggests a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.xyz/app/835599320/free-tiktok-likes-generator-game-hack In PDF document text
    • http://abst-brandschutztechnik.at/images/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://abst-brandschutztechnik.at/images/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://abst-brandschutztechnik.at/images/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://abst-brandschutztechnik.at/images/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://abst-brandschutztechnik.at/images/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031b4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31B4 23640 bytes
SHA-256: 216228e9b447c3b3e4749176976de6bd9091e2fb5e39389b15a03deeabe391e9
font_01_sfnt_off0000676f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676F 17684 bytes
SHA-256: 5a858a9ba580e5964a46b2eec995bc00b893a7f5d7a57062f00620da516a4987

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