systembc | 64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a

Resubmissions

13-11-2024 14:15

241113-rkm3kasphs 10

22-08-2024 04:20

240822-eygfqayaqg 10

Analysis

max time kernel
125s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 14:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Size

924KB
MD5

de64bb0f39113e48a8499d3401461cf8
SHA1

8d78c2d4701e4596e87e3f09adde214a2a2033e8
SHA256

64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a
SHA512

35b7cdcfb866dcdc79be34066a9ad5a8058b80e68925aeb23708606149841022de17e9d205389c13803c01e356174a2f657773df7d53f889e4e1fc1d68074179
SSDEEP

24576:NAHFp2K15zXnjfQb6+jFb5RIAJTOcA4gnPdCPPd7wm:WHf15zM5JbtA4wPdCnd75

Score

10^/10

systembc discovery persistence 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 4932 created 3412	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	55
PID 3480 created 3412	3480	mkkp.exe	55
PID 1772 created 3412	1772	mkkp.exe	55

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

Executes dropped EXE 4 IoCs

pid	Process
3480	mkkp.exe
2412	mkkp.exe
1772	mkkp.exe
1504	mkkp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\afasdfga = "C:\\Users\\Admin\\AppData\\Roaming\\afasdfga.exe"	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4932 set thread context of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 3480 set thread context of 2412	3480	mkkp.exe	97
PID 1772 set thread context of 1504	1772	mkkp.exe	99

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.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	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mkkp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mkkp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mkkp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mkkp.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
3480	mkkp.exe
1772	mkkp.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
Token: SeDebugPrivilege	3480	mkkp.exe
Token: SeDebugPrivilege	3480	mkkp.exe
Token: SeDebugPrivilege	1772	mkkp.exe
Token: SeDebugPrivilege	1772	mkkp.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 4932 wrote to memory of 908	4932	64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe	86
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 3480 wrote to memory of 2412	3480	mkkp.exe	97
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99
PID 1772 wrote to memory of 1504	1772	mkkp.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3412
- C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
  "C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4932
- C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe
  "C:\Users\Admin\AppData\Local\Temp\64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:908
- C:\ProgramData\knsxd\mkkp.exe
  "C:\ProgramData\knsxd\mkkp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2412
- C:\ProgramData\knsxd\mkkp.exe
  "C:\ProgramData\knsxd\mkkp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1504

C:\ProgramData\knsxd\mkkp.exe
C:\ProgramData\knsxd\mkkp.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:3480

C:\ProgramData\knsxd\mkkp.exe
C:\ProgramData\knsxd\mkkp.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:1772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\knsxd\mkkp.exe

Filesize
924KB

MD5
de64bb0f39113e48a8499d3401461cf8

SHA1
8d78c2d4701e4596e87e3f09adde214a2a2033e8

SHA256
64b58794801f282e92571676e3571afc5c59033c262406bf0d36e1d6ef3cda6a

SHA512
35b7cdcfb866dcdc79be34066a9ad5a8058b80e68925aeb23708606149841022de17e9d205389c13803c01e356174a2f657773df7d53f889e4e1fc1d68074179

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

Filesize
232B

MD5
4524b9cd9bce88eb365104c734236524

SHA1
7ccdc3deea2ca03ef333f44d5b03c33f24e4d61c

SHA256
a76eac683c2a7e1eaec1c1c59c5bf59d537c63e2e6fd577c7b72aee74ffa6848

SHA512
584d3a1ef276f3bfabbf00c444ebd3cae62b0833fb3696d3bc634f32c0f650a13923a0c7740bf881fba79c719c125ea6ea25edf4edafcc826bc81324f1f5023d

Download Submit
memory/908-1094-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2412-2189-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3480-1101-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-2191-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-2174-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-1100-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/3480-2182-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-2181-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/3480-2180-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-2179-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/3480-2178-0x0000000074C50000-0x0000000075400000-memory.dmp

Filesize
7.7MB

Download
memory/4932-8-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-56-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-42-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-40-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-38-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-36-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-34-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-32-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-30-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-26-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-25-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-22-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-20-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-18-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-14-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-12-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-10-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-62-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-6-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-5-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-66-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-64-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-58-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-61-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-54-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-52-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-50-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-48-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-46-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-44-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-1077-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/4932-1078-0x0000000005710000-0x0000000005768000-memory.dmp

Filesize
352KB

Download
memory/4932-1079-0x0000000005770000-0x00000000057BC000-memory.dmp

Filesize
304KB

Download
memory/4932-1082-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/4932-1084-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/4932-1085-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/4932-68-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-16-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-28-0x0000000005590000-0x0000000005668000-memory.dmp

Filesize
864KB

Download
memory/4932-4-0x0000000005590000-0x000000000566E000-memory.dmp

Filesize
888KB

Download
memory/4932-3-0x0000000005400000-0x00000000054DC000-memory.dmp

Filesize
880KB

Download
memory/4932-2-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/4932-1-0x0000000000A00000-0x0000000000AEE000-memory.dmp

Filesize
952KB

Download
memory/4932-0-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/4932-1086-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/4932-1087-0x0000000006110000-0x00000000066B4000-memory.dmp

Filesize
5.6MB

Download
memory/4932-1088-0x0000000005850000-0x00000000058A4000-memory.dmp

Filesize
336KB

Download
memory/4932-1096-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download