Malicious PDF — malware analysis report

Static analysis result for SHA-256 06bb88f59e1a17c4…

MALICIOUS

PDF

40.3 KB Created: 2021-05-20 22:11:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2e46ca22570765c2a0a2c686ac358b7e SHA-1: 1e572c7fc43507c370fbbcbe1bb7f833ccde0e57 SHA-256: 06bb88f59e1a17c44482ffada8b1857dbd14b2cd2b19752b43d64d25fdaa738b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 0.7776

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/479516143/minecraft-for-free-games-game-hack PDF link annotation
    • http://doganov.be/images/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/pokemon-go-free-play_GM1094591345.pdfIn PDF document text
    • http://doganov.be/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/get-gold-coin-master-village-hack_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_002_off000034b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34B6 30064 bytes
SHA-256: c42e5d0d85aae1fea959fa483cfb6bdd312fd38d1e3a09013a8366b5759a55a7
font_01_sfnt_off00007374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7374 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00007d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5E 17968 bytes
SHA-256: 9a9d2dfa5c0c54fa5ffdde25f1de4b21c6a9e15afbe55fd2a9ef8b08bad6b0a2

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