systembc | 1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66

General

Target

1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe
Size

51KB
MD5

914a8a27c511bacea375dbee8d88e165
SHA1

d017bdad365f3ecfda7a0c0936f6ed8c708c413c
SHA256

1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66
SHA512

884418991e70ed09aaa40381888cd3fbe9b739665d515aae055fab8b0bfd239f3a5d647887633ef58d6d1b36a3af3e2269c283d75fe32a68eb0e24d07310818a

Score

10^/10

systembc persistence trojan

Malware Config

Extracted

Family

systembc

C2

141.255.166.149:4125

5.188.62.165:4125

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

orrlb.exe

pid process

488 orrlb.exe
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
488	orrlb.exe

Drops file in Windows directory 2 IoCs

Processes:

1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe

description	ioc	process
File created	C:\Windows\Tasks\orrlb.job	1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe
File opened for modification	C:\Windows\Tasks\orrlb.job	1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe

pid	process
3720	1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe
3720	1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe

C:\Users\Admin\AppData\Local\Temp\1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe
"C:\Users\Admin\AppData\Local\Temp\1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3720

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe c3be752d7e8d88db48f32c6dc1c518b9 7cbdRzseKEabK+lMeQUa0A.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3800

C:\ProgramData\wupxqix\orrlb.exe
C:\ProgramData\wupxqix\orrlb.exe start
1⤵
- Executes dropped EXE
PID:488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\wupxqix\orrlb.exe
MD5
914a8a27c511bacea375dbee8d88e165

SHA1
d017bdad365f3ecfda7a0c0936f6ed8c708c413c

SHA256
1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66

SHA512
884418991e70ed09aaa40381888cd3fbe9b739665d515aae055fab8b0bfd239f3a5d647887633ef58d6d1b36a3af3e2269c283d75fe32a68eb0e24d07310818a

Download Submit
C:\ProgramData\wupxqix\orrlb.exe
MD5
914a8a27c511bacea375dbee8d88e165

SHA1
d017bdad365f3ecfda7a0c0936f6ed8c708c413c

SHA256
1478aec44d67217a18fb2b88e9db45b9c15c468f2498f56f09a5d1fef4eafb66

SHA512
884418991e70ed09aaa40381888cd3fbe9b739665d515aae055fab8b0bfd239f3a5d647887633ef58d6d1b36a3af3e2269c283d75fe32a68eb0e24d07310818a

Download Submit
memory/488-134-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/3720-130-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/3720-131-0x00000000009D0000-0x00000000009DA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads