systembc | 609107e7e71a4899fa5496da826c92a2ca05134e7f79b0bbda280696de45f937

Analysis

max time kernel
103s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11-12-2022 08:24

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General

Target

83514393db26424b554847acb66e57c2.exe
Size

109KB
MD5

83514393db26424b554847acb66e57c2
SHA1

f011dac01e0e0552c2f42665e444cab907394353
SHA256

609107e7e71a4899fa5496da826c92a2ca05134e7f79b0bbda280696de45f937
SHA512

5899f1f574e8ae7f607267ada11b193ec5662a437d4db30aa2804f682779fa493369109aea27c57d6a8f190cd74ace17507df9ec06cabb235cb5b8453448de59
SSDEEP

3072:z4CKjfWVRLecKlAG1OCRpwI1KCnLAHa15:yW7ZUO+OIUCLAHa15

Score

10^/10

systembc trojan upx

Malware Config

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 2 IoCs

Processes:

kdwsvi.exekdwsvi.exe

pid process

1632 kdwsvi.exe
1968 kdwsvi.exe

pid	process
1632	kdwsvi.exe
1968	kdwsvi.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\ProgramData\bvqsw\kdwsvi.exe	upx
C:\ProgramData\bvqsw\kdwsvi.exe	upx
behavioral1/memory/1632-61-0x0000000000400000-0x000000000044A000-memory.dmp	upx
C:\ProgramData\bvqsw\kdwsvi.exe	upx
behavioral1/memory/1968-68-0x0000000000400000-0x000000000044A000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

Processes:

83514393db26424b554847acb66e57c2.exe

description	ioc	process
File created	C:\Windows\Tasks\corolina17.job	83514393db26424b554847acb66e57c2.exe
File opened for modification	C:\Windows\Tasks\corolina17.job	83514393db26424b554847acb66e57c2.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

83514393db26424b554847acb66e57c2.exe

pid process

2044 83514393db26424b554847acb66e57c2.exe

pid	process
2044	83514393db26424b554847acb66e57c2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1432 wrote to memory of 1632	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1632	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1632	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1632	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1968	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1968	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1968	1432	taskeng.exe	kdwsvi.exe
PID 1432 wrote to memory of 1968	1432	taskeng.exe	kdwsvi.exe

C:\Users\Admin\AppData\Local\Temp\83514393db26424b554847acb66e57c2.exe
"C:\Users\Admin\AppData\Local\Temp\83514393db26424b554847acb66e57c2.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2044

C:\Windows\system32\taskeng.exe
taskeng.exe {9685EBEC-032D-470F-826A-56C7AA1F31AB} S-1-5-21-999675638-2867687379-27515722-1000:ORXGKKZC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1432

C:\ProgramData\bvqsw\kdwsvi.exe
C:\ProgramData\bvqsw\kdwsvi.exe start2
2⤵
- Executes dropped EXE
PID:1632

C:\ProgramData\bvqsw\kdwsvi.exe
C:\ProgramData\bvqsw\kdwsvi.exe start2
2⤵
- Executes dropped EXE
PID:1968

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\bvqsw\kdwsvi.exe
Filesize
109KB

MD5
83514393db26424b554847acb66e57c2

SHA1
f011dac01e0e0552c2f42665e444cab907394353

SHA256
609107e7e71a4899fa5496da826c92a2ca05134e7f79b0bbda280696de45f937

SHA512
5899f1f574e8ae7f607267ada11b193ec5662a437d4db30aa2804f682779fa493369109aea27c57d6a8f190cd74ace17507df9ec06cabb235cb5b8453448de59

Download Submit
C:\ProgramData\bvqsw\kdwsvi.exe
Filesize
109KB

MD5
83514393db26424b554847acb66e57c2

SHA1
f011dac01e0e0552c2f42665e444cab907394353

SHA256
609107e7e71a4899fa5496da826c92a2ca05134e7f79b0bbda280696de45f937

SHA512
5899f1f574e8ae7f607267ada11b193ec5662a437d4db30aa2804f682779fa493369109aea27c57d6a8f190cd74ace17507df9ec06cabb235cb5b8453448de59

Download Submit
C:\ProgramData\bvqsw\kdwsvi.exe
Filesize
109KB

MD5
83514393db26424b554847acb66e57c2

SHA1
f011dac01e0e0552c2f42665e444cab907394353

SHA256
609107e7e71a4899fa5496da826c92a2ca05134e7f79b0bbda280696de45f937

SHA512
5899f1f574e8ae7f607267ada11b193ec5662a437d4db30aa2804f682779fa493369109aea27c57d6a8f190cd74ace17507df9ec06cabb235cb5b8453448de59

Download Submit
memory/1632-61-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1632-58-0x0000000000000000-mapping.dmp

Download
memory/1632-62-0x000000000051E000-0x0000000000522000-memory.dmp

Filesize
16KB

Download
memory/1632-63-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1968-65-0x0000000000000000-mapping.dmp

Download
memory/1968-68-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1968-69-0x000000000063E000-0x0000000000642000-memory.dmp

Filesize
16KB

Download
memory/1968-70-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2044-56-0x000000000056E000-0x0000000000572000-memory.dmp

Filesize
16KB

Download
memory/2044-54-0x0000000075F81000-0x0000000075F83000-memory.dmp

Filesize
8KB

Download
memory/2044-64-0x000000000056E000-0x0000000000572000-memory.dmp

Filesize
16KB

Download
memory/2044-55-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads