Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c14c32289c6ac9c…

MALICIOUS

PDF

6.62 MB Created: 2016-12-26 18:46:44 -08:00 Authoring application: Microsoft® Word 2013
MD5: 5daa07b081bcdbedb855c8a2ec0efffe SHA-1: 246c729e96660fe2d1aef8869ea3e34571382778 SHA-256: 3c14c32289c6ac9cd4fba5f40fac67a4bbab5cbf24b95cbaeaa33b7f9a8f162c
70 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains heuristics indicating the presence of external URIs and a URL shortener, suggesting a phishing or malware delivery attempt. The 'SE_URGENCY_LURE' and 'SE_PASSWORD_ARCHIVE_LURE' heuristics indicate that the document uses social engineering tactics to trick the user into downloading a password-protected archive. The embedded URLs point to legitimate-looking software download sites, but the use of a URL shortener and the overall context suggest these are likely decoys or part of a multi-stage attack. The document body is heavily obfuscated, preventing a detailed analysis of its specific content, but the heuristics strongly suggest a malicious intent to deliver a payload.

Heuristics 5

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Clickable URI uses URL shortener medium PDF_URL_SHORTENER_URI
    PDF contains a clickable HTTP(S) action whose destination is a URL shortener. This hides the final landing page from static review and is common in phishing redirect PDFs.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://onthehub.com/download/free-software/
    • http://freestudentsoftware.com/
    • http://www.addmecontacts.com/
    • http://datingaffiliateprogramreviews.com/top-dating-affiliate-programs-for-2015/
    • http://www.followliker.com/instagram-bot.html
    • http://resell-rights-weekly.com/
    • http://howtobuybitcoins.info/us.html
    • https://kat.cr/
    • https://kat.cr/community/
    • http://www.redbox.com/movies
    • http://whatstrending.com/categories/movies
    • http://www.datpiff.com/mixtapes/hot
    • http://sharecash.org/
    • http://fileice.net/?index=bf898a13dc1375600e2f
    • http://www.hackforums.net/forumdisplay.php?fid=277
    • http://igaming.org/cryptocurrencies/section/how-mining-works/
    • https://shorte.st/ref/fc287cb549
    • https://www.youtube.com/watch?v=E58ZVwOhj6c
    • https://www.youtube.com/watch?v=LgRxWyoqltk
    • https://www.youtube.com/watch?v=QihvpQYOJ04
    • http://goo.gl/SqrB79
    • https://partnernetwork.ebay.com/en/home
    • http://www.alibaba.com/
    • https://www.g2a.com/
    • https://en.wikipedia.org/wiki/Bitcoin
    • https://blockchain.info/wallet
    • https://localbitcoins.com/
    • http://www.rottentomatoes.com/browse/dvd-new-releases/?services=amazon;amazon_prime;flixster;hbo_go;itunes;netflix_iw;vudu
    • http://www.rottentomatoes.com/
    • http://www.the-numbers.com/movies/trending
    • https://www.beatport.com/pulsechart
    • https://soundcloud.com/explore
    • http://www.metacritic.com/browse/games/release-date/new-releases/all/date
    • http://www.gamestop.com/collection/upcoming-video-games
    • http://www.gamespot.com/new-games/
    • http://gamingbolt.com/trending-video-games-this-week
    • http://download.cnet.com/windows/
    • http://download.cnet.com/windows/most-popular/3101-20_4-0.html?tag=rb_content;main
    • http://www.amazon.com/best-sellers-software/zgbs/software
    • http://filehippo.com/popular
    • http://www.techspot.com/downloads/popular/
    • https://www.youtube.com/watch?v=0xWExh2COl8
    • http://www.rarlab.com/download.htm

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_013_off000898b7.bin
6f11262fb4ae0f47aa1702a3ffcd7572f6842fbdb07081267560277934eac23e
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x898B7 3084624 bytes