Malicious PDF — malware analysis report

Static analysis result for SHA-256 e075010111c73e62…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 05:47:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d8eefb1349a72c6f369fa9c08b0c09aa SHA-1: 8e517ea07c23ec7d4b112ff986c62ac45bf8079e SHA-256: e075010111c73e6217413c3cdbfcf2c97569bc1080cea33055f50eb8b3ed1643
160 Risk Score

Malware Insights

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

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators for popular games. The heuristic firings indicate that these links are associated with known malicious redirectors and lures for game-related exploits. The document body, though partially corrupted, contains references to these lures and embedded URLs, suggesting an attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/roblox-dragon-ball-final-hack-game-hack In PDF document text
    • https://razredna-nastava.net/files/roblox-hack-attack-wiki_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/hacking-john-doe-in-roblox_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-robux-script-tampermonkey-legit-works-no-scam-100_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/robux-generator_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/is-pokemon-go-community-day-free_GM1094591345.pdfIn PDF document text
    • http://razredna-nastava.net/files/how-to-get-free-robux-no-inspecting_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/pubg-uc-website_GM1330123889.pdfIn PDF document text
    • http://razredna-nastava.net/files/how-to-hack-a-roblox-account-2021-easy_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAC 22060 bytes
SHA-256: dd8343d5fed3ae56de09ecbce2af863df90f28c72883b69bf978d6b6df733806
font_01_sfnt_off00006050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6050 19108 bytes
SHA-256: e3d78328ebb87a47aea2c8cd1fe099f1e55048df08d703d1a547e75f411fecf2

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