PDF static analysis report

Static analysis result for SHA-256 113efb11c7b6cf22…

SUSPICIOUS

PDF

224.6 KB Created: 2021-07-06 07:22:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 538b8989383ebe1e0e8fa6925b6039af SHA-1: 11526863239cf841b5979ed5747ea682242e4c63 SHA-256: 113efb11c7b6cf22dae497a0900d317cf30c617243453eb63bec4ebda5e5a54f
46 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a heuristic indicating it links to a 'free generator / game hack' lure. The embedded URL, 'http://netcdn.tw/app/1094591345/pokemon-go-free-or-pokeball-plus-game-hack', directly supports this finding. The document body, though heavily obfuscated, contains references to 'Pokemon Go' and 'game hack', reinforcing the lure. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0994

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/1094591345/pokemon-go-free-or-pokeball-plus-game-hack PDF link annotation
    • http://perpustakaan.stikim.ac.id/slims/repository/demon-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/dragon-ball-super-2-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/exploit-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-skins-free-download-girl_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-roblox-accounts-with-bloz_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-unused-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/robux-hack-me-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/claimbox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robu-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-marvel-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://perpustakaan.stikim.ac.id/slims/repository/free-minecraft-account-and-password-2021_GM479516143.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_023_off000320d0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320D0 25576 bytes
SHA-256: de516238a453ca07adda6cac628966b60a53d7320ebc09630b51caaa91d5460e
font_01_sfnt_off00035cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35CD6 18728 bytes
SHA-256: 9950c3c60c495831dd0f3703c7fa4126d2692e0012dbdb9a8026caa6b7d42252