Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a1b82185ffaab4f…

MALICIOUS

PDF

45.3 KB Created: 2021-05-30 05:11:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 09e7af6eca84131b9c4b82345ae468d1 SHA-1: 039b9c20b1d0411a142f3b99faf044d43a4f6de5 SHA-256: 9a1b82185ffaab4fee058af5607b6026b11694d406b1d23e85dd843c80c6880c
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple lures for free in-game items and currency, such as 'how-to-get-free-tiktok-fans' and 'free-robux'. The presence of external URIs and a high ML classifier score indicate malicious intent. The document likely serves as a lure to direct users to phishing or scam websites, potentially for credential harvesting or to deliver further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9580

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/835599320/how-to-get-free-tiktok-fans-game-hack In PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-hack-game_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
stream_003_off00005542.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5542 25728 bytes
SHA-256: 5100a67d89ab16f4285ed78eb50b5650b435f62facf5706ffd81595a633e5048
font_01_sfnt_off00008f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F7B 17848 bytes
SHA-256: a2af0e2105c7a8aa19b9291fb3a0139b13b39cb6820be81d8c7aa710ed8fb109

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