Malicious PDF — malware analysis report

Static analysis result for SHA-256 34b0fca842f00251…

MALICIOUS

PDF

39.1 KB Created: 2021-05-16 22:00:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a868e19d00650b324459c875750a2b1 SHA-1: 2b7a6e44798db36ede76f191d009785b0fe06af9 SHA-256: 34b0fca842f00251f8d6b93dcdffe1d2a72d293c2dc44ee230034b70230cdae0
130 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that redirect to a known malicious domain, masquerading as a 'Roblox Robux Hack' generator. The document body explicitly mentions 'Roblox Robux Hack' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', indicating a social engineering lure. The presence of PDF-specific heuristics for malicious redirectors and game hack lures strongly suggests this is a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/431946152/roblox-robux-hack-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000307b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x307B 25008 bytes
SHA-256: 54056291bf63868a4982fe9fef734482bae3e564478d66d86ede245871c766e9
font_01_sfnt_off000069eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69EB 3992 bytes
SHA-256: 43e72e756231cfd354bd65c2ed3b09ad4eff56ad11e7f155ed2920e6bb7860dd
font_02_sfnt_off00007712.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7712 18320 bytes
SHA-256: fa424f86a9ddd472d540fc30f07119be4b576a9306b5f7bb82c207f2bb92a2b4

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