Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b6d5ba6c88b1f9…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 16:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 3db3a63939ff9b581b7c9965bbfc9e1a SHA-1: e091cfca0e9836f1f0839caa04adba6652950802 SHA-256: 14b6d5ba6c88b1f9065ff89a3720915a94f4656e1e02118afeb4537d73d35a87
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising free game hacks and generators. The primary lure is for Roblox-related cheats, directing users to 'netcdn.tw'. This indicates a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/431946152/roblox-avatar-free-game-hack In PDF document text
    • https://morishita-tc.com.tw/image/data/files/pokemon-go-free-yamask_GM1094591345.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-hack-trackid-sp006_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-skywars-money-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-hack-roblox-robux-pc_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/best-roblox-scripts-to-hack-games-feree_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-codes-no-survey-2021-october_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-robux-2021-easy-no-human-verification_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_off000030b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B4 21732 bytes
SHA-256: 420f69a893b1e4c4851d82c96d49952f6aff2f91d733377a1dd560cffa47a77a
font_01_sfnt_off00006093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6093 18868 bytes
SHA-256: df626e97bf99c12ae2e2dc853053f4c46c230974655dd31d8497af8766a9dbba

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