Malicious PDF — malware analysis report

Static analysis result for SHA-256 21425b3fe25926f6…

MALICIOUS

PDF

52.0 KB Authoring application: LibreOffice
MD5: d0f2afa5f7d4350eb3fe6ae14b8a1390 SHA-1: c0757bdbdade5f5d47c86c0957ea99ea24b896ff SHA-256: 21425b3fe25926f6c87c300ea908b80a6c628a1e35a311b2c57ad1c42ba72b4e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier also strongly indicate maliciousness, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://movingmedicineali.com/uploads/1/3/0/6/130604568/xedilo_kabefezovuvejef_piporafevidax_mavefukavuri.pdf
    • http://texasresilienceexchange.org/uploads/1/3/0/3/130379206/newelez.pdf
    • http://thesuccesspreneur.com/uploads/1/3/0/7/130740193/8fc47c0648d.pdf
    • http://yes-bin-drin.com/uploads/1/3/0/2/130287867/634678.pdf
    • http://bebetterbee.com/uploads/1/3/0/7/130775588/vuvumuwitikoku_zifiwadevumut.pdf
    • http://specwellness.com/uploads/1/3/0/2/130289220/vozuwavekabugu-tuzevifaxalalew.pdf
    • http://djfullhouse.com/uploads/1/3/0/6/130639578/5026208.pdf
    • http://plancul-rennes.net/uploads/1/3/0/6/130640126/4419317.pdf
    • http://krystalsforthespirit.com/uploads/1/3/0/5/130590416/darutubeta.pdf
    • http://danthropology.com/uploads/1/3/0/8/130813136/f2a03f7.pdf
    • http://qwestllc.com/uploads/1/3/0/6/130621786/6976863.pdf
    • http://nectr.ca/uploads/1/3/0/8/130874526/6634770e.pdf
    • http://thrivelc.org/uploads/1/3/0/5/130539130/sikisixub_tokoferolududa.pdf
    • http://soulilluminations.com/uploads/1/3/0/8/130814728/nefosuk.pdf
    • http://www.yourimmobilia.com/uploads/1/3/0/4/130489539/juvidosudoxofa.pdf
    • http://comunidadcapital.com/uploads/1/3/0/7/130776490/suwesawodu-lejopenupimowuw-vipufugitibo.pdf
    • http://dangrammar.com/uploads/1/3/0/5/130588780/sasigol_rininozepopo_jovoxegawu_bemixipuzowu.pdf
    • http://partyzanmusic.net/uploads/1/3/0/8/130813301/ba6bf4f.pdf
    • http://norawahlbrink.com/uploads/1/3/0/7/130775447/gelajozebowe.pdf
    • http://divineemergence.com.au/uploads/1/3/0/7/130740589/nuvunelojejojuvoxuw.pdf
    • http://jballsy.com/uploads/1/3/0/2/130287238/zebitoman.pdf
    • http://olqm.us/uploads/1/3/0/2/130292073/6dd5a.pdf
    • http://dunkhilldrygoods.com/uploads/1/3/0/6/130604566/130604566.html#jeppesen+ifr+charts+france

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001093.bin
aef1034f8d19c8edf277ab1a9663d2a6bc9392a5ab7194018cbb54c62314c784		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1093 9132 bytes

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