General
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Target
file
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Size
265KB
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Sample
231012-vrvyjaff66
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MD5
d8e2d4ee9ea649e6c59ed61bf899400e
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SHA1
b9a5245c0001c8fea8da2e716120a5cc93b10e6a
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SHA256
c78fdf1284c80f1d2822e9f53f85c116e080871086bae22c632f9e6a3786e4a5
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SHA512
999f99378b3a277ca6bf54f4211862b519104aaf729de8d8dad692c1a9d48561b25ce5782d970c1bf10ce814ee7787ed5a116d019b3470b74a7b2110015f1485
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SSDEEP
3072:QBNZOh4l8XCkzBQhqJQVjBFgbZzxQqhlO6DMNWTsUS1n:4ih4l8XCk1R0XgbZznoYMUX
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Targets
-
-
Target
file
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Size
265KB
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MD5
d8e2d4ee9ea649e6c59ed61bf899400e
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SHA1
b9a5245c0001c8fea8da2e716120a5cc93b10e6a
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SHA256
c78fdf1284c80f1d2822e9f53f85c116e080871086bae22c632f9e6a3786e4a5
-
SHA512
999f99378b3a277ca6bf54f4211862b519104aaf729de8d8dad692c1a9d48561b25ce5782d970c1bf10ce814ee7787ed5a116d019b3470b74a7b2110015f1485
-
SSDEEP
3072:QBNZOh4l8XCkzBQhqJQVjBFgbZzxQqhlO6DMNWTsUS1n:4ih4l8XCk1R0XgbZznoYMUX
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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