Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0078c7042957060…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 08:36:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 604f82bce41ea0941e62919e84fb26a5 SHA-1: dc30d825cfc02c2ed5e26fce77b8c422a3eb990b SHA-256: a0078c704295706042f15328655686ec1cd275e51f09d24cacfe1d031e3d5f5b
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 0.9980

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.co/app/431946152/free-robux-with-download-game-hack PDF link annotation
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/codes-to-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/village-coin_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-go-through-everything-in-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-sex-hack_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-generator-tool_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/hack-para-hacker-todo-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.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_off000030ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EC 22348 bytes
SHA-256: 87c2dbd42caa62da6eb6fd681bf3cd623c7ed9a77235210b4af0c29f83b041ae
font_01_sfnt_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 19884 bytes
SHA-256: d65291049e95313fa1b9ae6754fcc0bde559b8f3ec3d46ba9b143e5cbe92dc84