Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f649aaa69562012…

MALICIOUS

PDF

35.7 KB Created: 2021-06-30 20:51:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 97100293c426ee12bd5d10bc336cef96 SHA-1: 30e134fadfe7994225a341c9a22171d52d924fbb SHA-256: 6f649aaa69562012d1926b9344601afb1560f53335082927c5ed7548b8a8c932
200 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA lure to trick users into clicking malicious links, disguised as a game hack generator. The primary link directs to a known malicious redirector infrastructure. While no scripts were extracted, the PDF structure and embedded links suggest an attempt to deliver a second-stage payload or phish for credentials.

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/comment-avoir-un-mode-de-cheat-sur-jailbreak-roblox-game-hack In PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-mm2-free-knife-codes_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/e-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hacks-for-mad-city-roblox-immortality_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/hacks-for-pet-ranch-roblox-for-free-coins_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-tracker_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/robux-rewards_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-robux-hacks-no-download_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/pubg-uc-free-generator_GM1330123889.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-free-followers-on-roblox_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B9 22032 bytes
SHA-256: 440be37cb350f8de77725061d86644cc4f1c0269222a134c156a198ec416e635
font_01_sfnt_off00006350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6350 20264 bytes
SHA-256: f71e3fb10b91b92ecd4900e9755cfec19a3e5820edfd5a851627b6b5808a7533

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