Malicious PDF — malware analysis report

Static analysis result for SHA-256 c298415eac1144c2…

MALICIOUS

PDF

50.1 KB Created: 2018-04-26 08:10:22 +03:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7)
MD5: 7f3c180285214a3e533b90191344fe23 SHA-1: ab5f9d6bf5945ebeadd1bf6255cc1812ff019af7 SHA-256: c298415eac1144c215a6d1ec391d2de5804de3da8f2c049b022ef0c15dc92b9d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to a video song download, which is a common tactic for phishing or malware distribution. It embeds multiple external links, with one prominent URL pointing to a suspicious domain that appears to be part of a traffic distribution system. The ClamAV detection as 'Pdf.Phishing.CaptchanText06210-9874300-0' further supports a phishing or malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4437

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.CaptchanText06210-9874300-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.CaptchanText06210-9874300-0
  • 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://tds.advtraff2014.ru/wp2?keyword=aaja+nach+le+nach+le+mere+yaar+video+song+download
    • https://taslowido1984.files.wordpress.com/2018/04/dofudaroxoxa-photoshop-software-free-download-full-version-for-windows-7-64-bit-xajozelatomo.pdf
    • https://img0.liveinternet.ru/images/attach/d/0//5920/5920068_daxasupermariobrosfreeonlinegamesnodownloadfezowo.pdf
    • https://botabaskey1986.files.wordpress.com/2018/04/vaxopijobanusi-indian-criminal-law-books-free-download-pdf-lodirorutezaf.pdf
    • https://img1.liveinternet.ru/images/attach/d/0//5921/5921776_tiweseipandmacaddressscannerfreedownloadsoftwarevuviz.pdf
    • https://moneckfloror1971.files.wordpress.com/2018/04/kokomonulujerur-7-zip-for-linux-64-bit-download-filehippo-ruvoso.pdf
    • https://img0.liveinternet.ru/images/attach/d/0//5920/5920961_netageforcefx5200softwaredownloadnesewe.pdf
    • https://neudiavinlamb1981.files.wordpress.com/2018/04/jisunobebif-2009-google-earth-download-free-2016-full-version-windows-7-32-bit-pugogaz.pdf
    • https://gurdlososi1971.files.wordpress.com/2018/04/ziguxonolugodet-adobe-flash-player-download-11-3-08-free-for-xp-filehippo-rupawinonon.pdf
    • https://img0.liveinternet.ru/images/attach/d/0//5916/5916268_rof123freedownloadplayerwisepod.pdf
    • https://img0.liveinternet.ru/images/attach/d/0//5916/5916234_kiletiwabsinthe2macdownloadgiweven.pdf
    • https://zdajicparvio1983.files.wordpress.com/2018/04/gosune-mobile-24-free-download-games-android-tablet-angry-birds-bepaji.pdf
    • https://eridprasar1975.files.wordpress.com/2018/04/davun-adventure-island-3-game-free-download-for-android-liwutuxun.pdf
    • https://ocherchasbou1986.files.wordpress.com/2018/04/varuputipu-all-4-one-i-swear-instrumental-download-vegep.pdf
    • https://img1.liveinternet.ru/images/attach/d/0//5925/5925072_xenuzaf3gofreedownloadjargamesfortouchscreenphonerozig.pdf
    • https://mapsanahar1988.files.wordpress.com/2018/04/kiroxigurut-free-download-theme-powerpoint-2007-terbaru-belesovibaxur.pdf
    • https://taslowido1984.files.wordpress.com/2018/04/dofudaroxoxa-photoshop-software-free-download-full-version-for-windows-7-64-bit-
    • https://neudiavinlamb1981.files.wordpress.com/2018/04/jisunobebif-2009-google-earth-download-free-2016-full-version-windows-7-32-bit-
    • https://gurdlososi1971.files.wordpress.com/2018/04/ziguxonolugodet-adobe-flash-player-download-11-3-08-free-for-xp-filehippo-
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f02.bin
566c949386896396818fa63b91c45b38c1651a0eeae54946914d7bc96f54981c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F02 18792 bytes
font_01_sfnt_off0000a877.bin
54109232afc55da60648742dca778d1782d105d5b5b344997baf6b9caaa5e6a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA877 15424 bytes

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