Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97236663b3fc219…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 07:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: a7f62a4d02257f3420c69efa0dd9decf SHA-1: 77836a58dad50c4e6e1f28c86414dc1db55a0dac SHA-256: f97236663b3fc21969356d6bcda30ee2e6ed83fecf46ce3d49e754866eed9264
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector leading to a 'game hack' lure. The document body and extracted URLs suggest a phishing attempt to trick users into downloading potentially malicious content. No scripts were extracted from this sample, limiting the analysis of further execution steps.

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-dll-hack-april-2021-game-hack In PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-hack-unknowncheats_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/was-ist-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/roblox-my-account-got-hacked_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B0 22312 bytes
SHA-256: 89c8ac38087e191e237c05b154f3eac6fd22548e22cfb85232e2c093dbafe9bb
font_01_sfnt_off00006245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 19524 bytes
SHA-256: 0072a1fab6e38d5794bb9c61bce6eb0e1e81602c55c0b8b91321f3d92ce8885e