Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aadd1e9b4ddcec8…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 23:32:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 53b9b9ee12726920643c12b1e035aff0 SHA-1: 09c82d8149292fd64e76822131157e37e7f47f53 SHA-256: 6aadd1e9b4ddcec8a07912d2d19f79121b8e3818c5b68fa63531fce176fefcbc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts further malicious PDFs. The document body and embedded URLs suggest a scam targeting gamers, likely leading to credential harvesting or further malware delivery.

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/roblox-zombie-rush-hack-script-game-hack In PDF document text
    • https://www.deg91.com/upload/files/free-roblox-ccount_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/fly-hack-roblox-v3rmillion_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/ex-7-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/use-the-rarest-item-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.deg91.com/upload/files/robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.deg91.com/upload/files/coin-master-generator-hack_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_off00002f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F35 21828 bytes
SHA-256: 6dcaa725f412de2052660467493f52db08db86d184276fa23f6c78060d09e117
font_01_sfnt_off00005f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F95 19716 bytes
SHA-256: 3735b99f1153467c2431fb83513d1cd9bcb092bb398b838357112eecd6d0ca18

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