Malicious PDF — malware analysis report

Static analysis result for SHA-256 b692d699af106ccd…

MALICIOUS

PDF

48.5 KB Created: 2021-06-08 22:23:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5c85f9ccf4ff68a4de86c773c25e3b4b SHA-1: 1ac0b45f19dbdaeca9b8ee62596d76698edc77d6 SHA-256: b692d699af106ccd515676d4476e79ea885d4d348647004d1d3b069339914857
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and known malicious infrastructure, masquerading as game hacks and generators. The primary redirector URL is https://netcdn.tw/app/431946152/roblox-kicked-by-server-cheat-engine-game-hack. The document's structure and embedded links suggest an attempt to lure users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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.tw/app/431946152/roblox-kicked-by-server-cheat-engine-game-hack In PDF document text
    • https://gigbagwinkel.nl/images/hack-avatar_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/robux-app_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-online_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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
stream_004_off00005230.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5230 29524 bytes
SHA-256: 6239b1bdfcc46a31056a2d275b80cd43e06d21fd4dc2532bb14b85a3f0962b1a
font_01_sfnt_off00009800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9800 19328 bytes
SHA-256: 57147442a01249b2d7274d5ede4246963f4746ea3cff45726d94f3d9a10ef3f7

Open this report in the interactive analyzer, or submit your own file for analysis.