Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a92ad61586e6ef7…

MALICIOUS

PDF

48.9 KB Created: 2021-06-07 18:51:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b41cae1e783bfe9255b601392a9b5363 SHA-1: 5b58bf87eec9e00ccb2a9dcc98774724c3ff2a01 SHA-256: 7a92ad61586e6ef7b9ac7a3d697ea9cedba97173bb493568217ef5a01e32b0d5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it links to external URIs, specifically a 'free generator / game hack' lure. The document body, though partially corrupted, contains similar text and a URL pointing to a site offering game hacks. This suggests the primary goal is to trick the user into visiting a malicious website, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/notoriety-roblox-hack-script-game-hack PDF link annotation
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/add-robux_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/hack-a-game_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://lpm.umi.ac.id/asset/ckfinder/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.roblox.comIn 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_004_off00005426.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5426 25148 bytes
SHA-256: d787f939a28522e6dca464cfbd410a5c7b7756427a9bd95798ecbc41cf7a5f1e
font_01_sfnt_off00008dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFF 3956 bytes
SHA-256: 6b42b100c087684b7e7174889ff2e54e53e718a934105f9b509febff96895dce
font_02_sfnt_off00009af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF8 18764 bytes
SHA-256: dd959d7070fd5f10c541aa0dc21ce63e3b92fd28ca26dc9dffbacab4215821d9

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