Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b809b54accc543d…

MALICIOUS

PDF

32.8 KB Created: 2021-07-05 15:48:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5d374b9b68ea0dc59ca43f3078ac1414 SHA-1: 6c4994196c3e32485280e071088f73dbcc004279 SHA-256: 0b809b54accc543d669a32226e615aa73fdb61d931959ffb54dc12e7418851c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a redirector lure, specifically linking to 'free generator / game hack' content. The document body also contains the same URL, reinforcing the lure. This indicates an attempt to trick users into visiting malicious sites, likely for further exploitation or malware delivery. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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/479516143/tiktok-minecraft-hacks-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/login-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/worst-roblox-avatars_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/hacks-para-roblox-2021-descargar_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-make-an-aimbot-hack-in-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/tiktok-free-code_GM835599320.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-hacked-client-esp_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-apk-2021_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
font_00_sfnt_off00002f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F09 21404 bytes
SHA-256: cf4bafda4991d287a1041f83a75fcb3ecfc40c723d86d77939b39000c3217aa8
font_01_sfnt_off00005de9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE9 18168 bytes
SHA-256: 49b148a5ca756e3f3293ae7356a748e2214796aae6d20bfd78280b7e22c0c315

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