Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfeb8ff4b9d84a60…

MALICIOUS

PDF

37.9 KB Created: 2021-07-06 14:11:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 476168c77184894002f524a0db9943f8 SHA-1: 6a4d62a75c9dabb803abf368ba519460d4c47963 SHA-256: bfeb8ff4b9d84a6007a1a4628e1151c1bea37b86b9c4f4249415fda776caf14b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to websites offering game hacks and free generators, a common lure for phishing or malware distribution. The heuristic firings indicate that the document links to known malicious redirector infrastructure. While no scripts were explicitly extracted, the nature of the embedded links suggests an intent to lead the user to a malicious payload or phishing site, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/431946152/is-roblox-free-on-ps4-game-hack In PDF document text
    • http://perpus.polbitrada.ac.id/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-high-school-cindering-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/make-your-own-roblox-character-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-emergency-response-liberty-county-hack-script_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/duck-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/inspect-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/cheat-roblox-tire-dans-les-mur-sur-phantom-forces_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/account-stealing-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/roblox-robux-hack-walkthrough_GM431946152.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://perpus.polbitrada.ac.id/repository/fly-hack-in-roblox-with-cheat-engine_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
font_00_sfnt_off00003bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BDA 23136 bytes
SHA-256: 855fc9ad0584c79e5c89a14ddbdc09219afd67c13da6b3f390c6db1cd3fde2b4
font_01_sfnt_off00006fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8 18868 bytes
SHA-256: 824c90c9f10edf8913ce2cc5e6fccfca0491a4cd932fa6552270a04d257ad04e

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