Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b13bf88485f2a39…

MALICIOUS

PDF

45.8 KB Created: 2021-06-11 09:33:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2280c18adee8e37354868a33a5df02c1 SHA-1: 6643cb3aeb4361abf2eac0867e440d3ab7df018c SHA-256: 8b13bf88485f2a39189c11c5f45ec714faaf5bf0d56fdbfaea2e0257b12df04d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free in-game currency, directing users to a suspicious URL. This indicates a social engineering tactic to trick users into visiting a potentially malicious site. The ML classifier also flagged this PDF as malicious, increasing confidence in its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-free-robux-with-inspect-element-2021-game-hack PDF link annotation
    • https://www.shin.ge/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/los-hacker-mas-famosos-de-roblox_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/pokemon-go-gameplay-free-online_GM1094591345.pdfIn PDF document text
    • https://www.shin.ge/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/new-roblox-free-faces_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-roblox-accounts-with-obc-2021-bugmenot_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/cheat-roblox-windows-10-magnet-simulator_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
stream_004_off00004f24.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F24 27332 bytes
SHA-256: 676d67b4b91b994c9a53e17abc52a4a00d43bd907a26c9b5cdfac11b3484ae8a
font_01_sfnt_off00008c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7F 19680 bytes
SHA-256: bc2dbac8efc5a8514fea072338410436de761ad3c4e2df826870a62178a4430d

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