Malicious PDF — malware analysis report

Static analysis result for SHA-256 bacc98ad8febee6c…

MALICIOUS

PDF

43.8 KB Created: 2021-05-10 18:55:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 64f063964bd0352d19c5201301f25f21 SHA-1: ac18728871283bd9627d21c4d7736a3e300ce14a SHA-256: bacc98ad8febee6cda463605d5e9944a12b29afe052444bc248781c9977e4384
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 embedded URLs are designed to lead users to potentially harmful content or further malicious sites. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9709

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-spin-blogspot-game-hack In PDF document text
    • http://floreswindows.com/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://floreswindows.com/images/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/hack-a-game_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/robux-generator_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://floreswindows.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://floreswindows.com/images/free-coins-and-spins-for-coin-master-game_GM406889139.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_off000045bd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45BD 24708 bytes
SHA-256: 0d265c1abff1ece7edb86d4caaf3056417feb7fb635f740abb08f094b67bf337
font_01_sfnt_off00007ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8880 18300 bytes
SHA-256: da6108506d645fcbe3414e0c69cdcf67670a59a1c8ef58446631e8e12bd9067e

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