Malicious PDF — malware analysis report

Static analysis result for SHA-256 a001b5b05774afda…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 19:11:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7dde402b13aee7975e3a09d17c91b221 SHA-1: c800ddd56edc11904574da1b7ef2a7b5785e0c9c SHA-256: a001b5b05774afda995c54c694f07f8f49240dbef5ee7316744617fd4fb55589
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with game hack content. The primary redirector URL is http://netcdn.co/app/431946152/insane-admin-hack-script-roblox-pastebin-game-hack, which is likely used to distribute further malicious payloads or lead to phishing sites. The ML classifier also strongly indicated maliciousness.

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/insane-admin-hack-script-roblox-pastebin-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/nezi-plays-roblox-building-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-cool-hats-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-script_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/corrupt-roblox-torso-free-servers_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-accounts-on-roblox-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-robux-july-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-does-roblox-gg-hack-your-acc_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/isuku-roblox-free-shop-hose_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-2021_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
font_00_sfnt_off00003066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3066 21324 bytes
SHA-256: c64ac41628d242596d30cf53a34f7402df9f336b0fd036b64e1f8d394b8644ea
font_01_sfnt_off00005ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE3 19644 bytes
SHA-256: cfe425f3a3a2b31b01607c0d6912dcd3901702025d6d6c3085cb114ceabd9ee2

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