Malicious PDF — malware analysis report

Static analysis result for SHA-256 608255382babebc1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-26 18:08:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d34a40f8ef7f5c766f5320177f03f1af SHA-1: 6ab040b39183778e095bf7798f65cc20814c3a70 SHA-256: 608255382babebc176398db2e13a13d4e74ec028cd0360c26fabfb2f512f97dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, specifically http://netcdn.co/app/431946152/hurt-roblox-hack-game-hack, which is disguised as a game hack generator. The document body and extracted URLs reinforce this lure, aiming to trick users into clicking through to potentially malicious sites. The presence of a visual download button further supports the deceptive nature of the document.

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/hurt-roblox-hack-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-make-hats-free-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-money-cheats-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/get-free-porsche-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-download-roblox-apoc-hacks_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-roblox-admin-commands-list_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spins-blogspot_GM406889139.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_off00002f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F20 22448 bytes
SHA-256: cb0521b04c4d0a734b289a2aa1b28398e1a2f8a663e890ee18289706decd09aa
font_01_sfnt_off0000612f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612F 18900 bytes
SHA-256: baa24abb29c500d540a62db81256b84357649e21edb09fb34bc50d5a8ad97abb

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