MALICIOUS — 28376371881.pdf
MALICIOUS — 28376371881.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (89/100). 3 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
4dcf527ed74e257ec513946898056f72d8262e017a6be7b83484c5616b1dd4f5 - SHA-1:
e542b8d0e7d2b733718e44bda0ea1850e68846ca - MD5:
f227c0a6d0927f69d4e577c1f30dd9a3 - ssdeep:
768:0gGzpDFz8swImobPlz7L00REEFY3CMFNCcP8ifUjtmEfJ74J26m:BGFBFlPl7L0CEEFUCMFNCc0Fm0J74J2f - TLSH:
T1C5319EF350A3EC8C768F6F475EAB059D504AD38CA126E66059987B7CC4B82FC6E10960 - Submitted as: 28376371881.pdf
- File type: pdf · Size: 42237 bytes
- Verdict: malicious (89/100)
Detections (3 of 54 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 89/100 is the fusion of 8 weighted signals:
- Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule
PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged HEUR:Trojan.Script.Generic (rule
HEUR:Trojan.Script.Generic) - engine signal, weight 0.55, confidence 0.85 - MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule
high-entropy-blob) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: https://cctraff.ru/strik?keyword=gmp+vs+cgmp+pdf, http://todig.oonaghdevoy.com/uploads/1/3/1/4/131410227/xaweburesagedifeluza.pdf, http://files.annakubitz.com/uploads/1/3/0/7/130740483/xutepubexi.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
- Contacted 7 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (16 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
1173 behavior events · 0 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- searchapp.bundleassets.example
- teams.cloud.microsoft
- ntp.ubuntu.com
- 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/1057f515-983a-463a-973f-7742d4e03120/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/1057f515-983a-463a-973f-7742d4e03120?P1=1790506124&P2=404&P3=2&P4=iCk%2bVZlK2RyqxtkTubPMBQz47a0oKzSvLYhKa8BsCU70azMtu%2f%2buMEFWGtP%2bSnqXHOzvhjSvnhk3mUh%2f%2fitPiA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- 23.40.52.85
- 23.11.37.157
- 20.190.167.64
- 20.165.94.63 US · San Antonio · AS8075 Microsoft Corporation
- 52.110.12.48 AU · Sydney · AS8075 Microsoft Corporation
- 204.79.197.203
- 74.179.71.159 US · Moses Lake · AS8075 Microsoft Corporation
- 23.33.238.114
- 104.68.3.152
Dropped files
- root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=gmp+vs+cgmp+pdf
- http://todig.oonaghdevoy.com/uploads/1/3/1/4/131410227/xaweburesagedifeluza.pdf
- http://files.annakubitz.com/uploads/1/3/0/7/130740483/xutepubexi.pdf
- http://lisam.outofruins.com/uploads/1/3/1/6/131606289/64b7b03.pdf
- https://site-1036733.mozfiles.com/files/1036733/40725462640.pdf
- https://site-1037086.mozfiles.com/files/1037086/26274824938.pdf
- https://site-1036728.mozfiles.com/files/1036728/62002944509.pdf
- https://site-1036932.mozfiles.com/files/1036932/zubibenezadukoxiduxanir.pdf
- https://site-1037094.mozfiles.com/files/1037094/33336780560.pdf
- https://site-1037069.mozfiles.com/files/1037069/parafiwanaroj.pdf
- https://site-1036910.mozfiles.com/files/1036910/wipurokisiwugibegasu.pdf
- https://site-1037079.mozfiles.com/files/1037079/jezaro.pdf
- https://site-1036680.mozfiles.com/files/1036680/terekemase.pdf
- https://site-1036698.mozfiles.com/files/1036698/paraviduwosi.pdf
- http://files.artlynchactingcoach.com/uploads/1/3/1/4/131453133/8602126.pdf
- http://tileze.grannysherbs.com/uploads/1/3/1/3/131398232/38d35d1533dcdf.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
Embedded domains
- cctraff.ru
- todig.oonaghdevoy.com
- files.annakubitz.com
- lisam.outofruins.com
- site-1036733.mozfiles.com
- site-1037086.mozfiles.com
- site-1036728.mozfiles.com
- site-1036932.mozfiles.com
- site-1037094.mozfiles.com
- site-1037069.mozfiles.com
- site-1036910.mozfiles.com
- site-1037079.mozfiles.com
- site-1036680.mozfiles.com
- site-1036698.mozfiles.com
- files.artlynchactingcoach.com
- tileze.grannysherbs.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.165.94.63
- 52.110.12.48
- 74.179.71.159
- 20.42.73.26
- 203.26.79.13
- 13.89.179.12
- 162.159.36.2
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report