systembc | 21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af

Analysis

max time kernel
138s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 01:29

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General

Target

Ewpeloxttug.exe
Size

2.2MB
MD5

23c8cb1226c61a164d7518218c837b81
SHA1

45ea74832e487bacb788189c04661b29a71e86b5
SHA256

21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af
SHA512

8e219108c05966ec8ee6bc2ce2fb40c4aedce6614e65970c356e4f840e88720188c762aaa4451c2f5f1fa1bbc14136ecbcd1f4c9f3b1a5fccc0ab053a37bcc21
SSDEEP

24576:wqDdns3FYYhWxL3rc/+rhm+qx6GuQ5qGPVmTy9xMNWgJ/AICqQ9pEsePeHMSPs2f:1iD

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

claywyaeropumps.com

178.132.2.10

Attributes

dns
5.132.191.104

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 2504 created 3412	2504	Ewpeloxttug.exe	56
PID 2932 created 3412	2932	nueswg.exe	56
PID 3596 created 3412	3596	nueswg.exe	56

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DriverUtil.vbs	Ewpeloxttug.exe

Executes dropped EXE 4 IoCs

pid	Process
2932	nueswg.exe
1748	nueswg.exe
3596	nueswg.exe
3584	nueswg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2504 set thread context of 3028	2504	Ewpeloxttug.exe	97
PID 2932 set thread context of 1748	2932	nueswg.exe	102
PID 3596 set thread context of 3584	3596	nueswg.exe	104

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	Ewpeloxttug.exe

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nueswg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ewpeloxttug.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ewpeloxttug.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nueswg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nueswg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nueswg.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2504	Ewpeloxttug.exe
2932	nueswg.exe
3596	nueswg.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	Ewpeloxttug.exe
Token: SeDebugPrivilege	2504	Ewpeloxttug.exe
Token: SeDebugPrivilege	2932	nueswg.exe
Token: SeDebugPrivilege	2932	nueswg.exe
Token: SeDebugPrivilege	3596	nueswg.exe
Token: SeDebugPrivilege	3596	nueswg.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2504 wrote to memory of 3028	2504	Ewpeloxttug.exe	97
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 2932 wrote to memory of 1748	2932	nueswg.exe	102
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104
PID 3596 wrote to memory of 3584	3596	nueswg.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3412
- C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe
  "C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2504
- C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe
  "C:\Users\Admin\AppData\Local\Temp\Ewpeloxttug.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\ProgramData\opqker\nueswg.exe
  "C:\ProgramData\opqker\nueswg.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\ProgramData\opqker\nueswg.exe
  "C:\ProgramData\opqker\nueswg.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3584

C:\ProgramData\opqker\nueswg.exe
C:\ProgramData\opqker\nueswg.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2932

C:\ProgramData\opqker\nueswg.exe
C:\ProgramData\opqker\nueswg.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\opqker\nueswg.exe

Filesize
2.2MB

MD5
23c8cb1226c61a164d7518218c837b81

SHA1
45ea74832e487bacb788189c04661b29a71e86b5

SHA256
21aaa5319a6729df0581203a0782ead837b848387e44cd1844ca8e19882a50af

SHA512
8e219108c05966ec8ee6bc2ce2fb40c4aedce6614e65970c356e4f840e88720188c762aaa4451c2f5f1fa1bbc14136ecbcd1f4c9f3b1a5fccc0ab053a37bcc21

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
238B

MD5
3723bb2f3186340e161d287505c19f89

SHA1
c3a8bb81ef611fe04192fe62854d7d39550c6db7

SHA256
785eef5b600266dd14ace596c14235e001c0c8f041b2ba0b656a7b50ce3559ea

SHA512
a07ccde4baa77d1b5773df37e6de2e681bf670af33f8ecb7d2ae9b361d6e2e126268099cf1c56e2a729c153a41d6259ce19a0d14fbf77a77551d48d141803762

Download Submit
memory/1748-2194-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2504-0-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/2504-1-0x0000000000030000-0x0000000000266000-memory.dmp

Filesize
2.2MB

Download
memory/2504-2-0x0000000004D30000-0x0000000004E0C000-memory.dmp

Filesize
880KB

Download
memory/2504-24-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-14-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-26-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-66-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-64-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-62-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-60-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-58-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-56-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-54-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-52-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-50-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-48-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-44-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-42-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-40-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-38-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-28-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-22-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-20-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-18-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-16-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-12-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-10-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-8-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-6-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-46-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-36-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-34-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-4-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-32-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-30-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-3-0x0000000004D30000-0x0000000004E07000-memory.dmp

Filesize
860KB

Download
memory/2504-1077-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1078-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1079-0x0000000004F20000-0x0000000004F78000-memory.dmp

Filesize
352KB

Download
memory/2504-1080-0x0000000004F80000-0x0000000004FCC000-memory.dmp

Filesize
304KB

Download
memory/2504-1084-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1085-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1086-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1087-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/2504-1088-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2504-1089-0x00000000058E0000-0x0000000005E84000-memory.dmp

Filesize
5.6MB

Download
memory/2504-1090-0x0000000004CA0000-0x0000000004CF4000-memory.dmp

Filesize
336KB

Download
memory/2504-1099-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/2932-1103-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/2932-2178-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2179-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2183-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2184-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2185-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2186-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/2932-2187-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/2932-2196-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/3028-1097-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download