Malicious PDF — malware analysis report

Static analysis result for SHA-256 26a7365051a457a0…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 09:59:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6f971cea486d8a8bc58e14755104f605 SHA-1: bbc35b2cb763773cf0619647eba018d7de9e51c4 SHA-256: 26a7365051a457a0b33f2d2a6b6d46d2330fdc3e65b534c5af7321f2cce00011
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-spins-for-coin-master-2021-game-hack PDF link annotation
    • https://goodtools.tw/upload/files/robux-xyz_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://goodtools.tw/upload/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://goodtools.tw/upload/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/pokemon-go-free-pokecoins_GM1094591345.pdfIn PDF document text
    • https://goodtools.tw/upload/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://goodtools.tw/upload/files/free-roblox-gift-card_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_004_off00005179.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5179 25276 bytes
SHA-256: 35cea7c912d30aacbce529f10e489d7d64b83f804b294de50346378309c7e849
font_01_sfnt_off00008b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4C 18288 bytes
SHA-256: 66febbde5b4b2b6a44609229e8681f3f0581fff3ed5f82ed8e3d83342858c217

Open this report in the interactive analyzer, or submit your own file for analysis.