Malicious PDF — malware analysis report

Static analysis result for SHA-256 42917e63cb348877…

MALICIOUS

PDF

45.2 KB Created: 2021-05-15 10:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: cade682a9637be22c89f3cf9360cb65e SHA-1: 364b4e800614c44ffc385eb6746287bb5a3a8266 SHA-256: 42917e63cb34887765d15f6cbb84824ab83cd9a58402b7ec78c42c9a8173121b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The document body and embedded links suggest the primary goal is to drive traffic to these sites, likely for further malware distribution or credential harvesting. No scripts were extracted, but the presence of embedded URLs and the nature of the lures strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/coin-master-free-spins-2021-haktuts-game-hack In PDF document text
    • http://fmbompastor.com.br/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://fmbompastor.com.br/images/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://fmbompastor.com.br/images/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://fmbompastor.com.br/images/https-rbx-place-rewards_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_off000049f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F8 24904 bytes
SHA-256: 1a5d0f92c0ebe79112a9d98c85303987ba0ebfbffdd9f165b1dadcb42889b9de
font_01_sfnt_off0000837d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D2E 18600 bytes
SHA-256: 89773803d88a9f64dc5621ed6622458791426392b237d756dbefd16237d4c6e2

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