General
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Target
c42c3e82a22d4dd981b9cf1766cc01f9.bin
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Size
175KB
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Sample
231027-cwjrysdb99
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MD5
d6aeed497df015227aa453a008f9d776
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SHA1
265af47a806c4edaed6de5a66fa0f694dca1d5cf
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SHA256
8e949c5c44adf1d588f71b8008b70ec4491d7e74621ea35d0bf240135255a553
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SHA512
b60e6911f21f12d51f783359f34f1579962bf14eb550d60b03fdcc6822aef1b94ce7244b0970f624c878126d021ab3514262396f18578ab00b6e3dc2bfaa8d50
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SSDEEP
3072:tuoRga7OF9H/2oD5N/E+mk2XWx75XfCrKpp39q0MacRfH99h4pCHK8BTfqNwGV:Ysga7OFR/f53CWt5vEcrMacRvzh4Uq+Q
Static task
static1
Behavioral task
behavioral1
Sample
9252b13000a99f5e020122fd7a7108389a22e55676f4739ab73b5c08fcfea57b.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
9252b13000a99f5e020122fd7a7108389a22e55676f4739ab73b5c08fcfea57b.exe
Resource
win10v2004-20231023-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
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Target
9252b13000a99f5e020122fd7a7108389a22e55676f4739ab73b5c08fcfea57b.exe
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Size
284KB
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MD5
c42c3e82a22d4dd981b9cf1766cc01f9
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SHA1
e2619e1ca9fd82151c5fda94281be42d80dfa363
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SHA256
9252b13000a99f5e020122fd7a7108389a22e55676f4739ab73b5c08fcfea57b
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SHA512
c11c5343c1bd62075983f40937942d7bf9e94b006f6cfe2a9ec46f3bfba7555d69a005e3274c86aa2f8de17703951b605aa0517398eb24af612f450962193f8c
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SSDEEP
3072:CCVXnHc4YObHa5o/LKtATUSQm/RvdGT7gfDVqNhR4/jQafEZB75aD/bVs7JQkibv:VnHc4Nb65o/L0Awb41Go7Vkr8EU7b0
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XMRig Miner payload
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Creates new service(s)
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Modifies Windows Firewall
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Sets service image path in registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2