Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ffede11c41ffa92…

MALICIOUS

PDF

36.1 KB Created: 2021-05-25 09:34:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 48b09575d2f2cbd0dc30b821b77695d7 SHA-1: 8aa9e174cf9b07815cdeceb747b71242b8d7ecff SHA-256: 2ffede11c41ffa9266fa5b3923a211e1136eee493cbf2e13a7bf108d7057839b
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'generators'. The document body and heuristics indicate a lure to download or access external content, likely leading to further malware or exploitation. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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 https://netcdn.xyz/app/431946152/roblox-jailbreak-hack-game-hack In PDF document text
    • https://servotecnica.com/images/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://servotecnica.com/images/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://servotecnica.com/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://servotecnica.com/images/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • https://servotecnica.com/images/coin-master-hack-download-apk_GM406889139.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_off00003270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3270 25160 bytes
SHA-256: 68b10cea14f789a0a44c1dfcf07daf5e4720720cea88329eb5e2251277db747f
font_01_sfnt_off00006b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B21 18468 bytes
SHA-256: deecbf3382f29be7f744c5f376599cf902ae77510bc823f5987ac0412c139863

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