Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e63b627f1df3528…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 06:55:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 322e202963d9c12e487d7bda3b207ea3 SHA-1: 4911d908681ba0fca31a6cafec4e016372577e30 SHA-256: 1e63b627f1df3528efcec8f7ef36443a2a5ef4619345cd14489d85ddbe9bdaa9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.co/app/431946152/glitch-that-gets-u-free-robux-game-hack PDF link annotation
    • http://sgsacall.sgsa.gov.mn/files/editor/files/roblox-free-exploits-download_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/666-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-robux-tix-bc-co-cc_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://sgsacall.sgsa.gov.mn/files/editor/files/free-robux-codes-2021-not-used_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_off00002eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB6 22300 bytes
SHA-256: 62e90b4b6981501ed36533fe524cb38b161731bdfd10726ded3eb65a1bdfd052
font_01_sfnt_off00006068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6068 19180 bytes
SHA-256: 3bd47be1548a8a23c3953865392813bacaef73a2e2c0c492ec6586f3b171df50

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