Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb49b581d1cb1209…

MALICIOUS

PDF

41.4 KB Created: 2021-05-19 20:05:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3545f70dfa3faa674146c831bcfe31cf SHA-1: 98113625cda7b1c1efb4992baf817834acefb722 SHA-256: bb49b581d1cb12098aa7696cb3433c9c3a769616fe33ba4702cd0f0ae93a6511
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that are disguised as links to game hacks and generators for popular games like Pokemon Go and Coin Master. These links likely lead to malicious websites designed to trick users into downloading malware or divulging sensitive information. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • 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 https://netcdn.xyz/app/1094591345/pokemon-go-free-version-game-hack PDF link annotation
    • https://shimony.net/images/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/get-more-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-twitter-free-spins_GM406889139.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
stream_003_off000047d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D1 24664 bytes
SHA-256: 641b59a9bf538ece283ae770ad8a780fc101029b21bab5ba50f17399c3575c56
font_01_sfnt_off0000806a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806A 18096 bytes
SHA-256: ccddb0d0c9524b3813409b126b464e6e1d8b9b814753d1182fda30b451a923d5

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