Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d5b4281b94adc2…

MALICIOUS

PDF

35.5 KB Created: 2021-07-20 06:42:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9c362350878b00012760cc2cddabc835 SHA-1: e3dca487f19b1eee98698e162c87ef30e28928b6 SHA-256: 47d5b4281b94adc2d945685578e1ac342e84d3d22bfa08b4b537fdbab5b589ac
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to malicious redirectors, including one at http://netcdn.tw/app/835599320/free-tiktok-followers-app-game-hack, which is presented as a "free generator / game hack". The document body also contains a call to action to "CLICK HERE TO ACCESS TIKTOK GENERATOR". This indicates a social engineering lure designed to trick the user into navigating to a malicious site, likely to download further malware or engage in phishing. No scripts were extracted, but the presence of malicious links and the lure suggest a high likelihood of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9251

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/835599320/free-tiktok-followers-app-game-hack In PDF document text
    • http://stroybelan.ru/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://stroybelan.ru/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://stroybelan.ru/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://stroybelan.ru/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://stroybelan.ru/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://stroybelan.ru/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://stroybelan.ru/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://stroybelan.ru/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://stroybelan.ru/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://stroybelan.ru/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BED 22912 bytes
SHA-256: 599308360e593b1aed11cc5576dd79555eb1f5d80a0015025d31285032c0f379
font_01_sfnt_off00005f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2C 3124 bytes
SHA-256: d6dd29adb69da7f9a23a5e3791282a61e2f811794f560a0c409c8747766d9102
font_02_sfnt_off000069e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E5 17872 bytes
SHA-256: 34129f1c56e014fb2604607ed740d581eed4f4cd55f156cb19b3173e06165e4c

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