Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24705cd2a6bd5fc…

MALICIOUS

PDF

28.0 KB Created: 2021-06-18 00:51:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2557ae1c93f068db8335eeb6d4fdb041 SHA-1: cd16075200c043975ce536da42a9a0d9c2ea5a28 SHA-256: f24705cd2a6bd5fc828f0aa8d6d7c41a4e99a9e8bfcbe28c01aab81101ac6a6f
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links pointing to a known malicious redirector infrastructure, specifically designed to lure users with a 'Robux Hack Generator' theme. The document body and heuristics indicate a clear intent to trick the user into clicking these links, likely leading to the download of a second-stage payload. The use of a redirector and the lure suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.2251

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-do-you-get-robux-hack-game-hack In PDF document text
    • https://www.impactlive.ca/userfiles/files/roblox-robux-hack-no-survey-working_GM431946152.pdfIn PDF document text
    • https://www.impactlive.ca/userfiles/files/how-to-get-robux-hack-2021_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_off00001943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1943 21712 bytes
SHA-256: afb891a38d5012ed8df80fe0c7dc19a10e9d9018a40783985fe82fe057749c76
font_01_sfnt_off000048f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48F4 19132 bytes
SHA-256: ef019920abf312ad169c140f9875428aaa82fa577b1421cf0123f14cdcb97a3c

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