Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf2cc2ee94f04a2…

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 05:20:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 26e040e4b6d979b15cc970b57ae83b8b SHA-1: b00fff16466d0fab529df4d997e3ee94344cea52 SHA-256: aaf2cc2ee94f04a22b6041a446d832bc1ef7de752e74b12d1747e66a2143f3a0
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency, as indicated by the document body and heuristic firings. It contains numerous links to external PDFs and a malicious redirector, suggesting a tactic to drive traffic to potentially malicious sites or host further phishing content. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/why-wont-cheat-engine-work-on-roblox-game-hack In PDF document text
    • https://nature-air.com.tw/upload/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/tiktok-free-movie-website_GM835599320.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/easy-robux-today_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-redeem-free-codes-on-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/hack-dragon-ball-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-phantom-forces-aimbot-hack_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-render-free-to-use_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/rbxnow-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-free-2021-spin-link_GM406889139.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
font_00_sfnt_off000030e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E9 22132 bytes
SHA-256: e6e4e64111786e4f09f78b8534b013eb55584bae860ecde11155127fa86ecb46
font_01_sfnt_off00006204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6204 19424 bytes
SHA-256: 8655fbd00d8f812c7fc47cca4f0824afa5bde0af6e872b2268d3a5cf117ba699

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