Malicious PDF — malware analysis report

Static analysis result for SHA-256 077ad2f5681c93bb…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 16:11:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 61910aa5a93c4ed8e80dbf165efc59ad SHA-1: 976a466f6f41322068f61f3bf739657362d7a6a5 SHA-256: 077ad2f5681c93bb0822251636ce2e01251cb5589d22026c833f097e879559ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a malicious redirector infrastructure, disguised as a 'free Robux generator'. The document body and heuristics indicate a lure for game-related cheats, which is a common social engineering tactic. The embedded URLs are designed to redirect users to potentially harmful sites, likely for further malware delivery or phishing.

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/free-robux-online-generator-2021-game-hack In PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/murder-mystorys-roblox-knife-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-its-free-gif_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-roblox-toy-codes-march-3rd-2021_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/installer-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-do-you-get-thengs-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-set-skybox-roblox-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/fast-hacks-robux_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-hack-robux-2021-pc-no-human-verification_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-no-inspect-or-waiting_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-robux-codes-no-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/fire-roblox-hack_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/hacker-robux-free_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/roblox-sad-cheating-story-albert-he-cried-on-video-new_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/real-way-to-get-free-robux-2021-september_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-get-free-money-in-roblox-adopt-me-2021_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/rich-people-that-didnt-get-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://prom2m.ru/wp-content/uploads/fsqm-files/free-likes-on-tiktok_GM835599320.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_off00003318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3318 21928 bytes
SHA-256: 7ad89f917feaeee3ceb104866d0031ae9ad5f24393ae96c710a56bd4a11dcbaa
font_01_sfnt_off00006355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6355 19228 bytes
SHA-256: 5a77c9bd6ae1ee77257a9d9a81f71b483e75511ffa1855a9fc370184f98e7ab0

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