Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9aa6e28ad871d04…

MALICIOUS

PDF

85.9 KB Authoring application: PDFBox
MD5: 76f0ed09837824260285806bee5bb351 SHA-1: 6200cea6b6052309a65bafa0a4205f622a191dcc SHA-256: c9aa6e28ad871d04b4a3bba0132f08446e2c3d40f2fe5af46c80eadf83ca1e44
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm designed to manipulate search engine rankings or direct traffic to potentially malicious sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent. No scripts were extracted from this sample.

Heuristics 3

  • 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.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://tracker-plus.ru/uploads/2020/01/27/fuximedudume-zumoxivupataka.pdf
    • http://banifafeda.bazarym.com/uploads/2020/01/28/varimena-lolosopibubivob.pdf
    • http://mysearchrealestate.com/uploads/1/3/0/6/130620601/2417504.pdf
    • http://neku.project-inspire.global/uploads/2020/01/27/f58f61.pdf
    • http://electronicsystem.ru/uploads/2020/01/27/nezevudo-nezexonudokunuw-wurasa.pdf
    • http://kad.bloghr.ru/uploads/2020/01/28/6919743.pdf
    • http://dippedarmor.com/uploads/1/3/0/4/130476074/nodanevalin.pdf
    • http://mirroryourbrilliance.com/uploads/1/3/0/5/130590339/a742c83c.pdf
    • http://tonkiymir.info/uploads/2020/01/28/vuwozufibus-nefazibe-rezag-sevajaji.pdf
    • https://rikewirakineror.weebly.com/uploads/1/3/0/4/130477351/zidasutonujazujalone.pdf
    • http://mybowerstudio.com/uploads/1/3/0/4/130435947/folek.pdf
    • http://valutazioni-gioielli.com/uploads/1/3/0/6/130621500/7674486.pdf
    • http://robinsnestfunraiser.org/uploads/1/3/0/5/130543272/14e6ba425f.pdf
    • http://womawotow.dog-express.ru/uploads/2020/01/29/waputur-nizexigad-linefebeza-neruxeguxa.pdf
    • http://alterationstotnes.com/uploads/1/3/0/4/130476712/cbadd3bb.pdf
    • http://sautterfarm4.org/uploads/1/3/0/5/130540700/8886100.pdf
    • http://999fmradiomanila.com/uploads/1/3/0/4/130483937/d48e7a5ed.pdf
    • https://kamudiwibapasi.weebly.com/uploads/1/3/0/2/130271205/7a5a561673.pdf
    • http://arcagraphix.com/uploads/2020/01/27/valusudomapeporid.pdf
    • http://ecoaldeaverdun.weebly.com/uploads/1/3/0/2/130289371/b04a906.pdf
    • http://silviazucchetti.com/uploads/1/3/0/4/130483864/duzugom-zumipe-sawodukuzaj-modolubivedefed.pdf
    • http://selos.event-essence.com/uploads/2020/01/28/zukimozeneware.pdf
    • http://mixtum.pro/uploads/2020/01/29/daaad3fc6d9c020.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/6/130620472/130620472.html#indiana+jones+books
    • http://mixtum.pro/uploads/2020/01/29/daaad3fc6d9c020.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000180b.bin
a435ece9f4116c44ab7162c2f1d789a43b7d67dca484810d3d1904f89207864d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x180B 9208 bytes
font_01_sfnt_off000082b8.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82B8 2616 bytes

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