bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541

Analysis

max time kernel
177s
max time network
196s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 06:05

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General

Target

bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
Size

61KB
MD5

31d4376ab726f58d506c63e6ce77d286
SHA1

43f727f2ee8f93b0bd2ba798eccbfaa27f0f50f9
SHA256

bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541
SHA512

479b294de10ec323a760ccb3824a6c16daff794b620d403d83369e531156b5ebf8abc9b3e6e15be2ae3643a06fb0b50e10ef63be6b92e364cf492fd1fc8dc2aa
SSDEEP

1536:VpOh4jWOmu3ILwI75HrINHyHut4Fx6ROYgI+Zux+cIXgjnis:br/1E575Hsht4FxCTuuxSinR

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\fizzzv.sys	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe

Sets DLL path for service in the registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\bjxcbq\Parameters\ServiceDll = "%SystemRoot%\\System32\\fizzzv.dll"	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\Services\bjxcbq\Parameters\ServiceDll = "%SystemRoot%\\System32\\fizzzv.dll"	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\bjxcbq\Parameters\ServiceDll = "%SystemRoot%\\System32\\fizzzv.dll"	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe

Loads dropped DLL 2 IoCs

pid	Process
1456	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
1484	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\00050869.001	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
File created	C:\Windows\SysWOW64\fizzzv.dll	bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
652	Process not Found

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1484	svchost.exe
1484	svchost.exe
1484	svchost.exe

C:\Users\Admin\AppData\Local\Temp\bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe
"C:\Users\Admin\AppData\Local\Temp\bf80cbe4f12d9b125de33afa5cc33047a4e00aa43c8118dc313f3459cba9a541.exe"
1⤵
- Drops file in Drivers directory
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1456

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k bjxcbq
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:1484

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fizzzv.dll

Filesize
89KB

MD5
1b65558ddc400ecf0aa52aff13f48bb6

SHA1
1d1cafd7e6c099cc88b38bd2bdcce5fe75c4f060

SHA256
de3286d53a3dd564fc22d497a9fb0bafaa40ec8803db2c01466c03cd8e064bde

SHA512
53221325e248ed8e78b786021df65696dda141c77ffcd1552c971a5614130a70e66faa787c5c472f990f68aa83ba7d21ddb6c6d0d1e8adab801d80bc6fb4a05d

Download Submit
C:\Windows\SysWOW64\fizzzv.dll

Filesize
89KB

MD5
1b65558ddc400ecf0aa52aff13f48bb6

SHA1
1d1cafd7e6c099cc88b38bd2bdcce5fe75c4f060

SHA256
de3286d53a3dd564fc22d497a9fb0bafaa40ec8803db2c01466c03cd8e064bde

SHA512
53221325e248ed8e78b786021df65696dda141c77ffcd1552c971a5614130a70e66faa787c5c472f990f68aa83ba7d21ddb6c6d0d1e8adab801d80bc6fb4a05d

Download Submit
\??\c:\windows\SysWOW64\fizzzv.dll

Filesize
89KB

MD5
1b65558ddc400ecf0aa52aff13f48bb6

SHA1
1d1cafd7e6c099cc88b38bd2bdcce5fe75c4f060

SHA256
de3286d53a3dd564fc22d497a9fb0bafaa40ec8803db2c01466c03cd8e064bde

SHA512
53221325e248ed8e78b786021df65696dda141c77ffcd1552c971a5614130a70e66faa787c5c472f990f68aa83ba7d21ddb6c6d0d1e8adab801d80bc6fb4a05d

Download Submit