Malicious PDF — malware analysis report

Static analysis result for SHA-256 08844b5954a379f9…

MALICIOUS

PDF

37.8 KB Created: 2021-05-23 13:42:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0b767cc7a4e623d1765b9c1851696ccf SHA-1: 9a7725043b86a128457bf6a785ccf217774ee00e SHA-256: 08844b5954a379f92128ea9632528272ae1c0f539bfc964455f62d9aceb86949
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors, disguised as game hacking tools. The primary lure directs users to 'https://netcdn.xyz/app/431946152/how-to-hack-roblox-game-hack', which is associated with known malicious infrastructure. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/how-to-hack-roblox-game-hack In PDF document text
    • http://solidkom.ch/images/game-toolbox_GM479516143.pdfIn PDF document text
    • http://solidkom.ch/images/roblox-sued_GM431946152.pdfIn PDF document text
    • http://solidkom.ch/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://solidkom.ch/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://solidkom.ch/images/coin-master-hack-tool-india_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_off00003417.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3417 27092 bytes
SHA-256: d2426b70becf6ac057672b8dc44cd5bd08fbaa4f532e0543c78ce1b2b70c2405
font_01_sfnt_off0000724d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724D 18344 bytes
SHA-256: 73440050ee62d9c8dc97d7cf0d13859b5ca63a66159f36279ab18a86d0bf293f

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