Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b0c192a7d6d82c…

MALICIOUS

PDF

40.0 KB Created: 2021-05-23 17:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dfa74090659bcc15d353a74cf1b3b587 SHA-1: 7280dd7a2fe83b4439f63a66c9e0c49f1fbae51a SHA-256: 22b0c192a7d6d82c326759cab02c761cd028cc131c4bfe26069b852c0c6bb705
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The document body includes phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8015

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/minecraft-free-download-windows-game-hack In PDF document text
    • http://poltekkeskhjogja.ac.id/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/hackear-coin-master-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003545.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3545 25360 bytes
SHA-256: d2c8e6fcaf0ac88bf1e8105e9cd24795c2df6be5552039059d5ce93e20e04040
font_01_sfnt_off00007007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7007 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00007a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A16 18488 bytes
SHA-256: 01dcb0f2ff627f41b1d4924369c472c3c2df1c4c10fc263e12ce9879fd09d82b

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