Malicious PDF — malware analysis report

Static analysis result for SHA-256 d109c9852f0e553a…

MALICIOUS

PDF

34.2 KB Created: 2021-06-30 11:46:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: faee77a63654c8f9f3a27c4d8557abc2 SHA-1: e7537ec2c5483b334b1320bddfe23d34ef144338 SHA-256: d109c9852f0e553a8b35230995f7bac5ac50c5acff7efc99423e04adf806704f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, indicating a phishing attempt to trick users into visiting a malicious site. No scripts were extracted, but the primary attack vector is the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-get-robux-clothes-for-free-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-ohne-handynummer_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/olzer-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-upload-music-to-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-hoodie-template-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-bee-swarm-simulator-free-eggs_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-exploit-mega-nz-free-emperor-roblox-hack-mega-nz_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/ezekiel-how-to-change-your-roblox-name-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-critical-strike-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-online-2021_GM406889139.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
font_00_sfnt_off00002eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEB 22232 bytes
SHA-256: 2fdc65fa010c3622a20aab0f9a5426b94aae362ccd8200105ac643ee903e784b
font_01_sfnt_off00006032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6032 19224 bytes
SHA-256: 3789f9faac59157fea6ad10e00f6b3c7002427e79a6a4ccb2745423009dcc75a

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