Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a8f5468f503687f…

MALICIOUS

PDF

48.8 KB Created: 2021-05-11 04:11:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2eb23476b642317b35e789b7299885bd SHA-1: 8091953cf9d215ff5a66a1d8d16fd8b9eaa9626b SHA-256: 0a8f5468f503687ffbd8010fad887f5b8eac121dd16b588d66f8585545096d5e
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 0.9228

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.xyz/app/479516143/universal-minecraft-converter-free-game-hack PDF link annotation
    • http://1a-vermietung.com/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/rbx-robux_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://1a-vermietung.com/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://1a-vermietung.com/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://1a-vermietung.com/images/roblox-hack-download_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004f53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F53 30748 bytes
SHA-256: 8d80e6419a93d5505d0b15762cb4a7c42a27ec6429770f7f4d7faf9275dab621
font_01_sfnt_off00009392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9392 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D44 18084 bytes
SHA-256: e9d0f0345694b9a79203755563a3dfebd4f00fdb0e59242a0f52e95bef3afb94

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