systembc | 1962f91125c15839d9e18b7273f1831cae8a191c574577210dda1a424e9e7628

Analysis

max time kernel
186s
max time network
254s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
25/09/2022, 00:26

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General

Target

socksupd.exe
Size

197KB
MD5

57eb1430903457db36a36023304f8a38
SHA1

831f481eebdf994a1cfacca5a9f53e1f6f93e0fd
SHA256

1962f91125c15839d9e18b7273f1831cae8a191c574577210dda1a424e9e7628
SHA512

a33af94ab2083e6beb5631ce4ff8c5340b4bf10e7a15727aef6817ec4dfd7c6771f90abc8bca397319d571cc8c165c7182528bab2e962f168530b7a496da683e
SSDEEP

3072:L6oyUN8LiJ4Ut3Fec85snm3HlR0zMgilHB9tEOzOGI8pJ/CB9XB/PkF4x:LXoLilt3FeKm1RgMrlHB92O+8pu

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

109.107.187.226:4001

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
668	xeqx.exe
1148	xeqx.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\xeqx.job	socksupd.exe
File opened for modification	C:\Windows\Tasks\xeqx.job	socksupd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1900	socksupd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 668	944	taskeng.exe	28
PID 944 wrote to memory of 668	944	taskeng.exe	28
PID 944 wrote to memory of 668	944	taskeng.exe	28
PID 944 wrote to memory of 668	944	taskeng.exe	28
PID 944 wrote to memory of 1148	944	taskeng.exe	29
PID 944 wrote to memory of 1148	944	taskeng.exe	29
PID 944 wrote to memory of 1148	944	taskeng.exe	29
PID 944 wrote to memory of 1148	944	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\socksupd.exe
"C:\Users\Admin\AppData\Local\Temp\socksupd.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1900

C:\Windows\system32\taskeng.exe
taskeng.exe {6BA5B8A4-ED58-4357-BB17-308408FF3003} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:944
- C:\ProgramData\wefnw\xeqx.exe
  C:\ProgramData\wefnw\xeqx.exe start2
  2⤵
  - Executes dropped EXE
  PID:668
- C:\ProgramData\wefnw\xeqx.exe
  C:\ProgramData\wefnw\xeqx.exe start2
  2⤵
  - Executes dropped EXE
  PID:1148

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\wefnw\xeqx.exe

Filesize
197KB

MD5
57eb1430903457db36a36023304f8a38

SHA1
831f481eebdf994a1cfacca5a9f53e1f6f93e0fd

SHA256
1962f91125c15839d9e18b7273f1831cae8a191c574577210dda1a424e9e7628

SHA512
a33af94ab2083e6beb5631ce4ff8c5340b4bf10e7a15727aef6817ec4dfd7c6771f90abc8bca397319d571cc8c165c7182528bab2e962f168530b7a496da683e

Download Submit
C:\ProgramData\wefnw\xeqx.exe

Filesize
197KB

MD5
57eb1430903457db36a36023304f8a38

SHA1
831f481eebdf994a1cfacca5a9f53e1f6f93e0fd

SHA256
1962f91125c15839d9e18b7273f1831cae8a191c574577210dda1a424e9e7628

SHA512
a33af94ab2083e6beb5631ce4ff8c5340b4bf10e7a15727aef6817ec4dfd7c6771f90abc8bca397319d571cc8c165c7182528bab2e962f168530b7a496da683e

Download Submit
C:\ProgramData\wefnw\xeqx.exe

Filesize
197KB

MD5
57eb1430903457db36a36023304f8a38

SHA1
831f481eebdf994a1cfacca5a9f53e1f6f93e0fd

SHA256
1962f91125c15839d9e18b7273f1831cae8a191c574577210dda1a424e9e7628

SHA512
a33af94ab2083e6beb5631ce4ff8c5340b4bf10e7a15727aef6817ec4dfd7c6771f90abc8bca397319d571cc8c165c7182528bab2e962f168530b7a496da683e

Download Submit
memory/668-63-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/668-62-0x00000000006BB000-0x00000000006CC000-memory.dmp

Filesize
68KB

Download
memory/668-66-0x00000000006BB000-0x00000000006CC000-memory.dmp

Filesize
68KB

Download
memory/1148-70-0x0000000000A0B000-0x0000000000A1C000-memory.dmp

Filesize
68KB

Download
memory/1148-71-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1900-57-0x0000000000400000-0x000000000058B000-memory.dmp

Filesize
1.5MB

Download
memory/1900-55-0x000000000030B000-0x000000000031C000-memory.dmp

Filesize
68KB

Download
memory/1900-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1900-64-0x000000000030B000-0x000000000031C000-memory.dmp

Filesize
68KB

Download
memory/1900-65-0x000000000030B000-0x000000000031C000-memory.dmp

Filesize
68KB

Download
memory/1900-56-0x00000000001B0000-0x00000000001B5000-memory.dmp

Filesize
20KB

Download