Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7db9b391e68e488…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 08:20:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 810c78dad249c88410d4bef85609a304 SHA-1: 7fdece8bb55108eefbd413ae8c7b7521d0f1f572 SHA-256: e7db9b391e68e488f9daad6ed0f35e7efb0b1ae3668d81f51e543da3f0179f89
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are identified as malicious redirectors, specifically targeting users with lures related to game hacks and generators. The document body and heuristic firings confirm the intent to redirect users to potentially harmful content. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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/406889139/coin-master-gold-cards-hack-2021-game-hack In PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/roblox-g_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/play-coin-master_GM406889139.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/block-best-robux_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mobtakerancell.ir/assets/uploads/pages/files/to-get-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
stream_002_off000030c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30C7 23364 bytes
SHA-256: baff2f388f9fe7adb78ba1c666471b42ecdb30e25688258db6011b139914b47e
font_01_sfnt_off000065b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B7 18656 bytes
SHA-256: 97782c777a3eb5e96f5d908785d6f5274c8dd961e5cba14107e5c2104e556f1d