Malicious PDF — malware analysis report

Static analysis result for SHA-256 c701bb4c368e9e9f…

MALICIOUS

PDF

39.8 KB Authoring application: OpenOffice Draw
MD5: 005768748768e0d7264e832a8dd853da SHA-1: 034bb46c712a1c2915345919a948df7a18b8db96 SHA-256: c701bb4c368e9e9f6846d523577fda110832c28f9a157c37aacf90f579d49866
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs point to other PDF files, suggesting a distribution or redirection mechanism. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://obsidianmarkets.com/uploads/1/3/0/7/130738497/xamameralutixofuji.pdf
    • http://mrb2btechwriter.com/uploads/1/3/0/5/130539735/f3f8f4.pdf
    • http://themindfulmillennial.space/uploads/1/3/0/5/130543878/sorupedufudixa.pdf
    • http://pearlmartinezlmft.com/uploads/1/3/0/7/130738998/darusuxibeje-patuj.pdf
    • http://livingculture.co/uploads/1/3/0/5/130589302/057ff0.pdf
    • http://kabayantraveller.com/uploads/1/3/0/6/130605471/608892.pdf
    • http://youngmindsfreshideas.com/uploads/1/3/0/2/130291545/4edb6b62bbb7e3.pdf
    • http://gstreetmercantile.com/uploads/1/3/0/5/130543293/rapuve-lokur-bulap.pdf
    • http://webscientist.tech/uploads/1/3/0/5/130543207/3b7e2ea85.pdf
    • http://mail.artisticlicensequartet.com/uploads/1/3/0/6/130620685/jokelulo-forexupaz-buxep-xepabagejoje.pdf
    • http://krishnaandnatansh.com/uploads/1/3/0/6/130620708/jobaxob.pdf
    • http://mitchell-winter.com/uploads/1/3/0/6/130640061/zujedikaroluk.pdf
    • http://restroomlist.com/uploads/1/3/0/4/130476844/9621724.pdf
    • http://catagorica.com/uploads/1/3/0/5/130538833/6629071.pdf
    • http://replenishmysoul.com/uploads/1/3/0/7/130739261/7fe6c.pdf
    • http://www.dr�mmemad.dk/uploads/1/3/0/2/130289800/889661f1cce47d.pdf
    • http://kaseyrae.com/uploads/1/3/0/9/130969940/3372658.pdf
    • http://kevinfaulkcelebritysoftball.com/uploads/1/3/0/5/130551745/zikaxelaro-votejugewulol-fenipe.pdf
    • http://www.jjbeef.com/uploads/1/3/0/3/130313459/edd1a45d126.pdf
    • http://sexoembrasilia.com/uploads/1/3/0/7/130739169/kufabapomar-zuriven-nosozez-japuzojap.pdf
    • http://walkplaystayofficial.com/uploads/1/3/0/4/130483510/9659360.pdf
    • http://www.vacationsuncondos.com/uploads/1/3/0/9/130969595/gajazasugurola_dozigirotaji_taxosa.pdf
    • http://valve.barnabasheart.org/uploads/1/3/0/2/130271068/a094c5a.pdf
    • http://qunubuclothing.com/uploads/1/3/0/9/130969476/5110099.pdf
    • http://gvk4nm.com/uploads/1/3/0/4/130476628/nefenozak.pdf
    • http://zaixiandaxingyouxi.br3h.com/uploads/1/3/0/8/130814483/130814483.html#brazing+soldering+and+adhesive+bonding+pdf
    • http://kevinfaulkcelebritysof

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036d4.bin
b6a7ca38b5d81559a02c7961394ee332b0b7dad5be4f0f1b0c5fabfb5fb3a88a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36D4 8056 bytes

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