Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea63c5873d6e72bf…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 09:42:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 2e38ad877b0bf27ac50639b35b6b8aad SHA-1: 9222d848d479cb87e6598200dcd90c10ba039fa2 SHA-256: ea63c5873d6e72bfc196652f30eab10132e13269a229b7e6ac37d41d38c7ff16
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are identified as malicious redirectors, often disguised as "free generator" or "hack" sites. The document body and embedded URLs suggest a lure to trick users into visiting these sites, likely to download further malware or engage in phishing. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

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.tw/app/835599320/is-tiktok-free-on-iphone-game-hack In PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-tiktok-likes-no-human-verification_GM835599320.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/get-free-robux-on-ipad-2021_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/ninja-zone-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/pastebin-hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-redeem-exclusive-virtual-item-roblox_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/people-who-hacked-roblox-and-got-unlmitited-robux_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/free-clothing-group-roblox_GM431946152.pdfIn PDF document text
    • http://www.atlanticexportsltd.com/uploaded_files/userfiles/files/roblox-free-download-jaleco_GM431946152.pdfIn PDF document text
    • http://atlanticexportsltd.com/uploaded_files/userfiles/files/minecraft-the-complete-handbook-collection_GM479516143.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_off000034f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F7 22596 bytes
SHA-256: 8b9de98670b6fe8949a94a54c9d40c5ae610768c9ba6e9a80dd7ba8ddd700176
font_01_sfnt_off00006768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6768 18312 bytes
SHA-256: 82ebccc644fc06092923d480c88715ba1a5190ad0b5840d6a23f9d6cd21f8648

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