Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8c153be799f42e4…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 18:14:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 667156c65f2894a578a9d88fb3a78d2a SHA-1: ad9afc5a233849c35d72b865784f23c62297f718 SHA-256: c8c153be799f42e44be7d499ce13975cadcdbec9b5e66289e8253b82fcb45550
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attempt, likely to deliver a secondary payload or lead to a scam.

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/479516143/hacker-minecraft-song-game-hack In PDF document text
    • https://www.ppid.banglikab.go.id/assets/CKImages/files/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://www.ppid.banglikab.go.id/assets/CKImages/files/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • https://www.ppid.banglikab.go.id/assets/CKImages/files/getrobux-now_GM431946152.pdfIn PDF document text
    • https://www.ppid.banglikab.go.id/assets/CKImages/files/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.ppid.banglikab.go.id/assets/CKImages/files/how-to-hack-roblox-on-mobile_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
stream_002_off00003315.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3315 26256 bytes
SHA-256: 6cfca8ee127fb736c59e6538529faaae49d63ed1b7610c1a376bc6c1aebddb3e
font_01_sfnt_off00006cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBE 18168 bytes
SHA-256: 37e3c409e679a213a10e0592b8ff177cf348fa9834d19b03b17241e7ed0c948b

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