Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21-03-2023 14:33
Static task
static1
Behavioral task
behavioral1
Sample
bc74b5b8a64345852af7d6d693558529f4aaaca0d9547aa57279b1cbe998ab70.dll
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
bc74b5b8a64345852af7d6d693558529f4aaaca0d9547aa57279b1cbe998ab70.dll
Resource
win10v2004-20230220-en
General
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Target
bc74b5b8a64345852af7d6d693558529f4aaaca0d9547aa57279b1cbe998ab70.dll
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Size
150KB
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MD5
1194f2e1e6d6e80fb8ea69905d18a77c
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SHA1
b0e6784083ef003127f55ca13a3d7b21822ffc0f
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SHA256
bc74b5b8a64345852af7d6d693558529f4aaaca0d9547aa57279b1cbe998ab70
-
SHA512
fda8c2cc0b8b59e5a51ebe0219e2cc7013a156b6b0ad138c1af519486bbb9fa35f27fb48264e3fed478ae0d0c82ce8b280a301209fbb21ad5dc83c24ffe88174
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SSDEEP
3072:bw7iSXOs2Se0Nca+uuWDtYb7Fu24J9jTIu4Pbl/TtSdUfr:bwFXJka+ZWDZ2oQyd
Malware Config
Extracted
cobaltstrike
http://nemucefah.com:443/wp-includes/skin.mp3
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user_agent
Host: google.co.jp Connection: close User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 12_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0
Signatures
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Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2880 2228 WerFault.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\bc74b5b8a64345852af7d6d693558529f4aaaca0d9547aa57279b1cbe998ab70.dll1⤵
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2228 -s 12362⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 432 -p 2228 -ip 22281⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2228-133-0x00000000006A0000-0x00000000006A8000-memory.dmpFilesize
32KB