Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab921c3b00a7cc2…

MALICIOUS

PDF

45.6 KB Created: 2021-05-18 06:13:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8efb84bf6b76b7262465a8b558666bbb SHA-1: 3c20e065116567145544b990f4d67513cd529191 SHA-256: 0ab921c3b00a7cc24d1e1f84b82ff5dc564dcacc5ff6a1c5b7053977055b7d25
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free coins, which are common lures for malicious content. The heuristic firings indicate that these links point to known malicious redirectors. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to redirect the user to a potentially harmful site, possibly for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/406889139/cheats-coin-master-free-game-hack In PDF document text
    • http://boliviagasenergia.com/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-group-roblox_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c53.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C53 26056 bytes
SHA-256: 6a86cae4dd0df7d48ad8326a3bf70af7b5f2101951c45cae0396f202db13916b
font_01_sfnt_off000086d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D9 2920 bytes
SHA-256: 601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7
font_02_sfnt_off000090f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F2 17876 bytes
SHA-256: d474ea2552ad4ab61fecc332af7923c97f8bd7d49077a14e922627460bfe2888

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