Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7d4c554166b685d…

MALICIOUS

PDF

35.3 KB Created: 2021-07-09 18:36:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 13fa02a2e3e547b68284c8452238e063 SHA-1: 14733f98591da0329e18a8e187e06b6d852fa07e SHA-256: e7d4c554166b685dd0f29c2d16ab22747abd47326457a162163a20539f582479
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a primary lure pointing to a 'coin master free spins and coins' hack. The ML classifier strongly flagged this PDF as malicious. The document body and heuristics indicate a social engineering tactic to trick users into visiting external sites, likely for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/coin-master-free-spins-and-coins-blogspot-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-exucutor-free-download-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-hack-rs-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/tiktok-free-net_GM835599320.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-get-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-the-plaza-money-cheat_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/attack-on-titan-downfall-roblox-play-free_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-speed-hack-on-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-phantom-forces-aimbot-free-download_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/assassin-item-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-free-robux-without-human-verification_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
stream_002_off000031ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31AD 23312 bytes
SHA-256: 442c1d37404efe1d43f26844797f840a6026620f5b7c3d1b430bf99176a0c933
font_01_sfnt_off00006628.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6628 18636 bytes
SHA-256: 77a53ca9a0da76c6fec701e0feff9ca620a686d010f30580b8dc7f9926b66f2b

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