Malicious PDF — malware analysis report

Static analysis result for SHA-256 202247ad1ef6bd84…

MALICIOUS

PDF

35.7 KB Created: 2021-07-01 16:21:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 76ce39525349b52172701b207c1c1449 SHA-1: 78226e2e1addd915249c55fa4bf76269df8cfe4f SHA-256: 202247ad1ef6bd849d0c39e221c5fd94e827a166b59812cd84188b0c0be9b3bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/how-to-hack-roblox-accounts-v3rmillio-game-hack. The document body and embedded URLs suggest a lure for game-related cheats or currency, likely intended to lead users to a phishing or malware download site. The ML classifier also strongly indicated maliciousness.

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-hack-roblox-accounts-v3rmillio-game-hack In PDF document text
    • https://smark.com.tw/image/data/files/can-i-hacked-my-own-roblox-account-got_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/noxplayer-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-roblox-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/free-robux-rixty_GM431946152.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • https://smark.com.tw/image/data/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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
font_00_sfnt_off000030de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DE 22896 bytes
SHA-256: d3df8a076faee17cdb257322b7cb3f385702033e8cd8e210eb273efe2a932b8b
font_01_sfnt_off00006486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6486 19752 bytes
SHA-256: fa7e81ee87aff8eb54bc57d3ceaf48ab45ca0212cde6afd620ad53902c15ed42

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