Malicious PDF — malware analysis report

Static analysis result for SHA-256 9194789752256a0f…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 13:54:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 1fa5c4ed119d11bb34ec77e097e65247 SHA-1: a1a16374381654841e24f523f0178e0471613d79 SHA-256: 9194789752256a0fcc8eb9c4ec1b4e00b4f77c3b6d265161b9379a218fda74a2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The document body explicitly mentions "How To Use The Blackout Hack On Roblox" and includes the malicious URL, indicating a social engineering attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a phishing or malware distribution attempt.

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.co/app/431946152/how-to-use-the-blackout-hack-on-roblox-game-hack In PDF document text
    • http://apartmani-mestrovic-krk.hr/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/seniac-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/el-mejor-hack-para-roblox-indetectable_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/asshurt-hack-roblox_GM431946152.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://www.apartmani-mestrovic-krk.hr/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://apartmani-mestrovic-krk.hr/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F5E 22904 bytes
SHA-256: 3859516331041d3733cee8baecfffe89bc8d3062c187650cd8963995484594fc
font_01_sfnt_off000062dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DC 19232 bytes
SHA-256: d1892ee3e1d0b574fc7c504f7eb37525d4d0c1fe9f783e76c6d3ab38fbacf68a

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