systembc | 2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

General

Target

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
Size

233KB
MD5

6058208ac500aeee298159954796fd68
SHA1

915b8375b99b004b93e7a5af23dbcf6e3f6c55ae
SHA256

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5
SHA512

24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

C2

dec15coma.com:4039

dec15coma.xyz:4039

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

hdcmsx.exe

pid process

668 hdcmsx.exe

pid	process
668	hdcmsx.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
C:\ProgramData\vfqhrie\hdcmsx.exe	upx
C:\ProgramData\vfqhrie\hdcmsx.exe	upx

Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

5 api.ipify.org
6 api.ipify.org
7 ip4.seeip.org
8 ip4.seeip.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

flow	ioc
5	api.ipify.org
6	api.ipify.org
7	ip4.seeip.org
8	ip4.seeip.org

Drops file in Windows directory 2 IoCs

Processes:

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

description	ioc	process
File created	C:\Windows\Tasks\hdcmsx.job	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
File opened for modification	C:\Windows\Tasks\hdcmsx.job	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

pid process

1096 2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

pid	process
1096	2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1972 wrote to memory of 668	1972	taskeng.exe	hdcmsx.exe
PID 1972 wrote to memory of 668	1972	taskeng.exe	hdcmsx.exe
PID 1972 wrote to memory of 668	1972	taskeng.exe	hdcmsx.exe
PID 1972 wrote to memory of 668	1972	taskeng.exe	hdcmsx.exe

C:\Users\Admin\AppData\Local\Temp\2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe
"C:\Users\Admin\AppData\Local\Temp\2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1096

C:\Windows\system32\taskeng.exe
taskeng.exe {9B6E93AB-FA2C-41D0-9714-54DE01170A50} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1972
- C:\ProgramData\vfqhrie\hdcmsx.exe
  C:\ProgramData\vfqhrie\hdcmsx.exe start
  2⤵
  - Executes dropped EXE
  PID:668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Connection Proxy

1

T1090

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Connection Proxy

1

T1090

Exfiltration

Impact

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Downloads

C:\ProgramData\vfqhrie\hdcmsx.exe

MD5
6058208ac500aeee298159954796fd68

SHA1
915b8375b99b004b93e7a5af23dbcf6e3f6c55ae

SHA256
2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

SHA512
24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Download Submit
C:\ProgramData\vfqhrie\hdcmsx.exe

MD5
6058208ac500aeee298159954796fd68

SHA1
915b8375b99b004b93e7a5af23dbcf6e3f6c55ae

SHA256
2c0507132507ea5337dcba2ae9e6f786e72f5b43c7a31445a8ea4b836e6843a5

SHA512
24a8f8a21c39a432b46103ca91bd24ab7c13633915bbcc1dea9333cab4c448d152ed67221398033fe858b024ba620711e69b04914cfa2b2cbe789b25e69a5cca

Download Submit
memory/668-61-0x00000000002C8000-0x00000000002CF000-memory.dmp

Filesize
28KB

Download
memory/668-63-0x00000000002C8000-0x00000000002CF000-memory.dmp

Filesize
28KB

Download
memory/668-64-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/668-65-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download
memory/1096-54-0x00000000052C9000-0x00000000052CF000-memory.dmp

Filesize
24KB

Download
memory/1096-55-0x00000000052C9000-0x00000000052CF000-memory.dmp

Filesize
24KB

Download
memory/1096-56-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/1096-57-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1096-58-0x0000000000400000-0x0000000005163000-memory.dmp

Filesize
77.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads