Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f67777c39c0f324…

MALICIOUS

PDF

45.4 KB Created: 2021-05-19 16:24:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 02145c951897c2314bd7ea0e0eafb84f SHA-1: 59ec5b769108db1cfe6730a04b280dfc6a022769 SHA-256: 0f67777c39c0f324c3dea4ea80cb91a947e115f772469b078ba471bd1f93482c
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links that point to known malicious redirector infrastructure, specifically targeting users with lures related to free game currency and hacks. The document body and heuristics confirm the presence of these malicious links, indicating an attempt to redirect users to potentially harmful websites for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-robux-no-verification-2021-game-hack In PDF document text
    • http://ig-tauchen.de/images/rbx-claim_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ig-tauchen.de/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://ig-tauchen.de/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://ig-tauchen.de/images/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ig-tauchen.de/images/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://ig-tauchen.de/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://ig-tauchen.de/images/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • http://ig-tauchen.de/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://ig-tauchen.de/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://ig-tauchen.de/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://ig-tauchen.de/images/get-free-robux-today_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000497e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497E 24936 bytes
SHA-256: a24705425c5e10f5f216ffd61eb04992c056de6e8456538864a631ba3101798a
font_01_sfnt_off000082e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E0 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00008c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C81 19004 bytes
SHA-256: d712ae43aec968503a6d4b8ef93db90b07e4d7d9799b66e9787cf09d99ae12e2

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