PDF malware analysis — malicious · 611e4bbdb2e63a16

MALICIOUS

PDF

42.4 KB Authoring application: Solid Converter PDF

MD5: 1bb83024745ae70d552304287bbc6d6e SHA-1: c6bb1a4672a2033e7869f7b449eeeeb374e6e748 SHA-256: 611e4bbdb2e63a163a93a14df0e39215a3623c7cbf9cc403ad56facfe15d2f5f

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or distribution mechanism. ClamAV and ML heuristics confirm the malicious nature, with ClamAV identifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs suggest a phishing or content distribution attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://mail.tanboonliat.com/uploads/1/3/0/5/130548152/4487168.pdf
- http://mo-resin.com/uploads/1/3/0/5/130588225/tezulaxubuwewiwagi.pdf
- http://clinicalcampus.com/uploads/1/3/0/6/130603988/zuvabumen.pdf
- http://geminitrix.com/uploads/1/3/0/4/130476984/539093.pdf
- http://www.myamandarogers.com/uploads/1/3/0/8/130814642/78370d202ebe80b.pdf
- http://claytonheightssportmassage.ca/uploads/1/3/0/5/130542872/7856655.pdf
- http://nicolesnaturals.blog/uploads/1/3/0/5/130550708/bd20478.pdf
- http://rosepunch.com/uploads/1/3/0/6/130604127/litabubuxax.pdf
- http://moltenpleasure.net/uploads/1/3/0/7/130775047/gozunumujofafotav.pdf
- http://english.aiwonglawyers.com/uploads/1/3/0/7/130740164/1961555.pdf
- http://heatherreed.com/uploads/1/3/0/4/130435892/zoveti_xuzoxumolowigub_betelixa.pdf
- http://collinsmslibrary.org/uploads/1/3/0/5/130550688/14c7a6.pdf
- http://scottsvalleyorthodontist.com/uploads/1/3/0/3/130313582/bamusejirevewugami.pdf
- http://addybeaux.com/uploads/1/3/0/3/130323100/4268491.pdf
- http://furrybabydepot.net/uploads/1/3/0/5/130588574/bovitekaxovaf.pdf
- http://the-rising-sea.com/uploads/1/3/0/8/130874521/1831125.pdf
- http://fbcjena.org/uploads/1/3/0/3/130379199/piniwija.pdf
- http://www.sjpumn.com/uploads/1/3/0/5/130551302/3095837.pdf
- http://kadydunlapprints.com/uploads/1/3/0/4/130493968/jugujegumivujuv.pdf
- http://treehousehashomes.com/uploads/1/3/0/4/130435755/2898243.pdf
- http://71delmar.com/uploads/1/3/0/6/130620438/4415406.pdf
- http://newdaymetaphysical.com/uploads/1/3/0/4/130490245/7294751.pdf
- http://theeklektikpeacock.com/uploads/1/3/0/5/130589346/8733027.pdf
- http://marijuanamarketexchange.com/uploads/1/3/0/7/130776749/dbf4b48c1c54f7.pdf
- http://www.genesis-fitness.net/uploads/1/3/0/7/130739836/130739836.html#how+to+export+an+excel+document+to+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000346b.bin` `e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x346B	2652 bytes
`font_01_sfnt_off00004087.bin` `dddca86338bae6ecfe4b511b8c753b45a212ad892721e025198d034a57ce9134`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4087	8600 bytes

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