Malicious PDF — malware analysis report

Static analysis result for SHA-256 364b37ff351494d7…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 17:58:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 29539f494e711d6dfbafafa96074d3f6 SHA-1: 006b1633c2bbc1a9bcc0dec92d1195f43df30c8f SHA-256: 364b37ff351494d788ea9cc16f8840d1b2baf9fc0100bd5ea25f37e40273241a
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the embedded URLs and the nature of the lures suggest an attempt to trick users into downloading further malicious content or visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/freecoins-game-hack In PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/free-my-robux_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/free-robux-hack-on-phone-no-download_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/how-to-hack-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/hack-denisdaily-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/is-free-robux-fake_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-ban_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/cheat-dbr-roblox-ccv3_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/free-robux-that-uses-rechachapa_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-hacks-glitches-or-troll_GM431946152.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-hack-pastebin-com_GM431946152.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_off00003079.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3079 22600 bytes
SHA-256: 5f4687b140afc6781f684e22631d9c314454d478826177ff45fdffbeafc54dcb
font_01_sfnt_off00006308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6308 17896 bytes
SHA-256: 95b27e0fe0f8d09f21308dfe7f1e0da3cbc5e6d7e802a0f52430e90404511a42

Open this report in the interactive analyzer, or submit your own file for analysis.