MALICIOUS — kuridujud.pdf
MALICIOUS — kuridujud.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
5ab0b39a46bf766535c393b5ec6ec50e2427ecd34623651d4b438cc1c3ea045c - SHA-1:
4a6cbd142d040eafac03776d0a1332a41cfb4981 - MD5:
cceefe59bc861ccd7c8980443bb90084 - ssdeep:
1536:hGF9/fO36qRvgheIwbSWz8FxgwrPBvpr3r+elz3s:EF9/mqeowbSWWrPBrg - TLSH:
T12536D0F3004FDE4C7AC72F836DAB11986595D7482232A77418D87A7DC9782BC6F40AA1 - Submitted as: kuridujud.pdf
- File type: pdf · Size: 63393 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 19 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/0a4503c9-27e7-4e26-947e-80d6c9dc1202/pekave.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=oceanography+definition+pdf, https://site-1036772.mozfiles.com/files/1036772/69222589767.pdf, https://site-1036798.mozfiles.com/files/1036798/wasezotikemevafapibuxo.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (12 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9740 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- c.pki.goog
- ntp.ubuntu.com
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- 79.243.254.169.in-addr.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
afb02dcdb59d7adb751af7d909c05bcf748546ae981e808b032474f11fa77ca4 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\0a865bf9ca857df9bf8f4cf5000fa1cc.png -
9c4a2626ef86344af092316cd91ba4cafb38d474bb96ce60c1bcedf2197be30a - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=oceanography+definition+pdf
- https://site-1036772.mozfiles.com/files/1036772/69222589767.pdf
- https://site-1036798.mozfiles.com/files/1036798/wasezotikemevafapibuxo.pdf
- https://site-1036876.mozfiles.com/files/1036876/lovokewujolevab.pdf
- https://site-1037251.mozfiles.com/files/1037251/pakuvif.pdf
- https://uploads.strikinglycdn.com/files/0a4503c9-27e7-4e26-947e-80d6c9dc1202/pekave.pdf
- https://uploads.strikinglycdn.com/files/a97555c2-47fd-490e-bec8-981fa15545f1/68515569156.pdf
- https://uploads.strikinglycdn.com/files/0557f423-a167-46af-a0a2-015669f4fcf7/dozopubofudufegoreke.pdf
- http://files.fabricofthefield.co.uk/uploads/1/3/2/6/132696113/3812377.pdf
- http://files.nardamohammed.com/uploads/1/3/1/4/131408798/8673126.pdf
- http://files.mackinawvet.com/uploads/1/3/1/6/131637362/4711055.pdf
- http://files.the-nmo.com/uploads/1/3/2/7/132711961/towasovuzatase-medunal-vasavunex.pdf
- https://cdn.shopify.com/s/files/1/0439/4264/1832/files/xubofabute.pdf
- https://cdn.shopify.com/s/files/1/0433/9276/2006/files/zolewisam.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787740332&P2=404&P3=2&P4=SdcNh%2bja6V2V%2b4weKlgtl%2ffTwc38zA4QcaKZ2T%2fRzfuZ0Ks%2fa9w5qJWKTkFKzryZ8V856ka3GNP6ZkCV6i3M%2bw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- cctraff.ru
- site-1036772.mozfiles.com
- site-1036798.mozfiles.com
- site-1036876.mozfiles.com
- site-1037251.mozfiles.com
- uploads.strikinglycdn.com
- files.fabricofthefield.co.uk
- files.nardamohammed.com
- files.mackinawvet.com
- files.the-nmo.com
- cdn.shopify.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.233.95.144
- 20.42.72.131
- 52.123.252.244
- 20.165.94.46
- 52.110.12.1
- 4.230.171.124
- 203.26.79.13
- 172.215.188.225
- 20.165.94.63
- 20.42.65.85
- 52.123.129.14
- 52.123.252.225
- 135.234.160.245
- 4.247.188.233
- 20.42.73.26
- 142.250.207.3
- 92.223.78.30
- 20.184.175.9
- 48.192.143.121
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report