Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba835e7779d95bbc…

MALICIOUS

PDF

34.4 KB Created: 2021-05-20 15:14:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0bf599c875c4ccf20c6fc993d2c1e6e8 SHA-1: 0ace179fa09f54484fd8b15a99c357390c16c79d SHA-256: ba835e7779d95bbc56cb3a2286e52816ffe7327a93e8441be601afb7bc26eda8
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised with lures like 'free generator' and 'game hack'. The document body explicitly mentions 'Get Tiktok Followers Free' and 'CLICK HERE TO ACCESS TIKTOK GENERATOR', reinforcing the social engineering aspect. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

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/get-tiktok-followers-free-game-hack In PDF document text
    • http://ivalor.fr/images/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-free-hair-girl_GM431946152.pdfIn 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_off000031f6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31F6 23336 bytes
SHA-256: 0bac7203053a0faab8e9a7e130970ecdb000af4f5dfd60750cd7a142132a90ef
font_01_sfnt_off000066f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F2 17692 bytes
SHA-256: 8cacd57cbae25f5163b35c5b464cf1f4e6be88960ce09657a88da3590579257c

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