Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fe78a750ff5cdd1…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 06:21:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 058575a55f2ab47e8c069dc5fae27827 SHA-1: e2b45ad893fb323027b0ccf34cf75eb49f640969 SHA-256: 0fe78a750ff5cdd12d459030216e9e3d85b70d819dc3a335ce7437a70e42791c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to known malicious redirectors, disguised as "game hacks" and "free generators." These links are designed to trick users into visiting potentially harmful websites. The primary lure appears to be related to obtaining free items or cheats for popular online games, such as TikTok followers, Robux, or Coin Master spins. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious intent.

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.tw/app/835599320/how-to-get-free-followers-and-likes-on-tiktok-game-hack In PDF document text
    • http://library.forda-mof.org/katalog/repository/games-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/getbux-me-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/fake-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-robux-on-roblox-2021-real_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-2021-iphone_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_off00002fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA8 23276 bytes
SHA-256: 897633945c8d153d56690cf202cd640b8b87f748addaf236cc372d4a5fcc3056
font_01_sfnt_off000063dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DD 18384 bytes
SHA-256: 95f10fab50896eebe3b3a16aa0c4712e68c05181c3e40d12974e1d4807889ad6

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