Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbeedc5f97ab7787…

MALICIOUS

PDF

33.4 KB Created: 2021-05-22 20:15:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4bd8b9fd633b6559a4d1e6b977afdbc7 SHA-1: a550e7ce56c40f6cf1a8bea4d4f8a3c3dd375201 SHA-256: fbeedc5f97ab778787732879575e5d94278536a366f272e7d45e9879b0480d1b
170 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to known malicious redirector infrastructure, specifically advertising a 'free TikTok followers generator' and 'game hack'. The presence of an MFA lure suggests an attempt to harvest session tokens or abuse multi-factor authentication. While no scripts were directly extracted, the PDF structure and embedded links indicate a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0622

Heuristics 5

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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-followers-generator-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000029e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29E6 24496 bytes
SHA-256: 9a3a57f98b8b4b6c43d9ef51a96c05a968075919e742bdfd9bd607a4bb23f275
font_01_sfnt_off00006248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6248 17924 bytes
SHA-256: 15e81544c7296339f60406a70d440ba472803439c3c01f92585f07e7e66dad8a

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