systembc | ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

General

Target

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Size

799.1MB
MD5

c92f10574719f64de71f15142e927922
SHA1

bc1c5d3a8481f8fda448c55d821da9b2f55fed66
SHA256

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de
SHA512

b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6
SSDEEP

98304:NjtiC2lkD5L18CJVE0CGTtHdxpXP3UDSMOKS6gqiLZFIfbdSK3m:VtP58CrZf3iVrS6gqCZFcxD2

Score

10^/10

systembc evasion persistence themida trojan

Malware Config

Extracted

Family

systembc

C2

212.8.244.5:4001

192.168.1.149:4001

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\Temporary Internet Files\\cache\\minloapi.exe,"	reg.exe

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	minloapi.exe

Executes dropped EXE 2 IoCs

Processes:

minloapi.exeminloapi.exe

pid process

2040 minloapi.exe
1664 minloapi.exe

pid	process
2040	minloapi.exe
1664	minloapi.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	minloapi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	minloapi.exe

Loads dropped DLL 2 IoCs

Processes:

cmd.exeminloapi.exe

pid process

584 cmd.exe
2040 minloapi.exe

pid	process
584	cmd.exe
2040	minloapi.exe

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1608-60-0x0000000000F10000-0x0000000001BA8000-memory.dmp	themida
behavioral1/memory/1608-61-0x0000000000F10000-0x0000000001BA8000-memory.dmp	themida
behavioral1/memory/1608-68-0x0000000000F10000-0x0000000001BA8000-memory.dmp	themida
\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe	themida
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe	themida
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe	themida
behavioral1/memory/2040-80-0x0000000000900000-0x0000000001598000-memory.dmp	themida
behavioral1/memory/2040-81-0x0000000000900000-0x0000000001598000-memory.dmp	themida
\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe	themida
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe	themida
behavioral1/memory/2040-100-0x0000000000900000-0x0000000001598000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	minloapi.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

pid process

1608 ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
2040 minloapi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

minloapi.exe

description pid process target process

PID 2040 set thread context of 1664 2040 minloapi.exe minloapi.exe
Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

916 PING.EXE
1420 PING.EXE
972 PING.EXE

description	pid	process	target process
PID 2040 set thread context of 1664	2040	minloapi.exe	minloapi.exe

pid	process
916	PING.EXE
1420	PING.EXE
972	PING.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

pid	process
1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
2040	minloapi.exe
2040	minloapi.exe
2040	minloapi.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exeminloapi.exe

description	pid	process
Token: SeDebugPrivilege	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
Token: SeDebugPrivilege	2040	minloapi.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.execmd.execmd.exeminloapi.exe

description	pid	process	target process
PID 1608 wrote to memory of 820	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 820	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 820	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 820	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 820 wrote to memory of 916	820	cmd.exe	PING.EXE
PID 820 wrote to memory of 916	820	cmd.exe	PING.EXE
PID 820 wrote to memory of 916	820	cmd.exe	PING.EXE
PID 820 wrote to memory of 916	820	cmd.exe	PING.EXE
PID 1608 wrote to memory of 584	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 584	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 584	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 1608 wrote to memory of 584	1608	ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe	cmd.exe
PID 584 wrote to memory of 1420	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 1420	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 1420	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 1420	584	cmd.exe	PING.EXE
PID 820 wrote to memory of 1868	820	cmd.exe	reg.exe
PID 820 wrote to memory of 1868	820	cmd.exe	reg.exe
PID 820 wrote to memory of 1868	820	cmd.exe	reg.exe
PID 820 wrote to memory of 1868	820	cmd.exe	reg.exe
PID 584 wrote to memory of 972	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 972	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 972	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 972	584	cmd.exe	PING.EXE
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 584 wrote to memory of 2040	584	cmd.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe
PID 2040 wrote to memory of 1664	2040	minloapi.exe	minloapi.exe

C:\Users\Admin\AppData\Local\Temp\ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe
"C:\Users\Admin\AppData\Local\Temp\ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 36 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe,"
2⤵
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 36
3⤵
- Runs ping.exe
PID:916

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe,"
3⤵
- Modifies WinLogon for persistence
PID:1868

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 44 > nul && copy "C:\Users\Admin\AppData\Local\Temp\ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe" && ping 127.0.0.1 -n 44 > nul && "C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 44
3⤵
- Runs ping.exe
PID:1420

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 44
3⤵
- Runs ping.exe
PID:972

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe
"C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe"
3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe
"C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe"
4⤵
- Executes dropped EXE
PID:1664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe

Filesize
799.1MB

MD5
c92f10574719f64de71f15142e927922

SHA1
bc1c5d3a8481f8fda448c55d821da9b2f55fed66

SHA256
ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

SHA512
b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe

Filesize
799.1MB

MD5
c92f10574719f64de71f15142e927922

SHA1
bc1c5d3a8481f8fda448c55d821da9b2f55fed66

SHA256
ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

SHA512
b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe

Filesize
799.1MB

MD5
c92f10574719f64de71f15142e927922

SHA1
bc1c5d3a8481f8fda448c55d821da9b2f55fed66

SHA256
ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

SHA512
b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

Download Submit
\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe

Filesize
799.1MB

MD5
c92f10574719f64de71f15142e927922

SHA1
bc1c5d3a8481f8fda448c55d821da9b2f55fed66

SHA256
ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

SHA512
b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

Download Submit
\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\cache\minloapi.exe

Filesize
799.1MB

MD5
c92f10574719f64de71f15142e927922

SHA1
bc1c5d3a8481f8fda448c55d821da9b2f55fed66

SHA256
ba137558e3d88cd6d9bb8b5d06662b6de3c878fcbec37cac07a617538df045de

SHA512
b0a51feeb6053602eb56a354b25e1ef7d39856e1daa648a8186546476b7f67358c4c40978035fbf246df00323587cfc309506a60a1e5354a86ac6f8c81db87d6

Download Submit
memory/584-66-0x0000000000000000-mapping.dmp

Download
memory/820-64-0x0000000000000000-mapping.dmp

Download
memory/916-65-0x0000000000000000-mapping.dmp

Download
memory/972-71-0x0000000000000000-mapping.dmp

Download
memory/1420-67-0x0000000000000000-mapping.dmp

Download
memory/1608-61-0x0000000000F10000-0x0000000001BA8000-memory.dmp

Filesize
12.6MB

Download
memory/1608-59-0x0000000000F10000-0x0000000001BA8000-memory.dmp

Filesize
12.6MB

Download
memory/1608-68-0x0000000000F10000-0x0000000001BA8000-memory.dmp

Filesize
12.6MB

Download
memory/1608-69-0x0000000077480000-0x0000000077600000-memory.dmp

Filesize
1.5MB

Download
memory/1608-62-0x0000000000920000-0x0000000000950000-memory.dmp

Filesize
192KB

Download
memory/1608-63-0x0000000000CA0000-0x0000000000CB8000-memory.dmp

Filesize
96KB

Download
memory/1608-56-0x0000000077480000-0x0000000077600000-memory.dmp

Filesize
1.5MB

Download
memory/1608-60-0x0000000000F10000-0x0000000001BA8000-memory.dmp

Filesize
12.6MB

Download
memory/1608-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/1608-54-0x0000000000F10000-0x0000000001BA8000-memory.dmp

Filesize
12.6MB

Download
memory/1664-98-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-99-0x0000000000900000-0x0000000001598000-memory.dmp

Filesize
12.6MB

Download
memory/1664-94-0x0000000000401000-mapping.dmp

Download
memory/1664-93-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-90-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-89-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-86-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-91-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1664-87-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1868-70-0x0000000000000000-mapping.dmp

Download
memory/2040-85-0x000000000BDD0000-0x000000000CA68000-memory.dmp

Filesize
12.6MB

Download
memory/2040-83-0x0000000003060000-0x0000000003066000-memory.dmp

Filesize
24KB

Download
memory/2040-92-0x000000000BDD0000-0x000000000CA68000-memory.dmp

Filesize
12.6MB

Download
memory/2040-82-0x0000000002F00000-0x0000000002F1A000-memory.dmp

Filesize
104KB

Download
memory/2040-81-0x0000000000900000-0x0000000001598000-memory.dmp

Filesize
12.6MB

Download
memory/2040-80-0x0000000000900000-0x0000000001598000-memory.dmp

Filesize
12.6MB

Download
memory/2040-76-0x0000000077480000-0x0000000077600000-memory.dmp

Filesize
1.5MB

Download
memory/2040-73-0x0000000000000000-mapping.dmp

Download
memory/2040-100-0x0000000000900000-0x0000000001598000-memory.dmp

Filesize
12.6MB

Download
memory/2040-101-0x0000000077480000-0x0000000077600000-memory.dmp

Filesize
1.5MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads