Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5cf270d01803be2…

MALICIOUS

PDF

35.1 KB Created: 2021-05-23 15:36:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8cbf606c5b8a8f6f167dc4483bd43189 SHA-1: 7bec556dfa25b697c1600cca1c106ffaa01cda9c SHA-256: e5cf270d01803be21297377f272b559498c30d8571cadbeba21890d64bfb8083
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple embedded URLs and a heuristic firing for an MFA lure, suggesting it is designed to trick users into providing credentials or session tokens. The document body and embedded links promote free followers or game hacks, which are common pretexts for phishing or credential harvesting. While no scripts were directly extracted, the PDF structure and external links indicate a potential for exploitation or redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/835599320/free-tiktok-followers-no-survey-game-hack
    • http://kids-academy.pl/images/collect-free-spin-linms-coin-master_GM406889139.pdf
    • http://kids-academy.pl/images/free-robux-that-actually-works_GM431946152.pdf
    • http://kids-academy.pl/images/como-hackear-coin-master_GM406889139.pdf
    • http://kids-academy.pl/images/how-to-hack-roblox-games_GM431946152.pdf
    • http://kids-academy.pl/images/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002fe3.bin
7727196ea3dd9260dd7b7f72565ac89ab9b74b720aab213faff359e033575a7b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FE3 24400 bytes
font_01_sfnt_off0000680f.bin
4d5ae90dc7158db100f8a60f18795856627c30e44bb6186b706c2f28ceb56c30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680F 18128 bytes

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