systembc | e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4

Analysis

max time kernel
141s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 04:04

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General

Target

e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe
Size

674KB
MD5

6fa8227ddbe4cd86d75d82da8b40c1c1
SHA1

d981c3f40eb7a508f17bdaed7ade99f548575a7b
SHA256

e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4
SHA512

5da29ad44c64ca536ed5ba6485a9e0dc5d3728533265daa74a363ccd4d7823c63ef6b00234bb40c040ac812cfe30f7b9858cc31b7cb4d6a8d9e952620c9829ce
SSDEEP

12288:D0iiYQPr1bj4UU5NTIkMhE2F1cL00PzRnVKf1hurETuVu:gRnBFCN9qEscLrVKdhNZ

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

185.215.113.32:4000

78.47.64.46:4000

Signatures

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

Drops file in Windows directory 2 IoCs

Processes:

e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe

description	ioc	Process
File created	C:\Windows\Tasks\wow64.job	e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe
File opened for modification	C:\Windows\Tasks\wow64.job	e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exee00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	Process	procid_target
PID 1704 wrote to memory of 2396	1704	taskeng.exe	31
PID 1704 wrote to memory of 2396	1704	taskeng.exe	31
PID 1704 wrote to memory of 2396	1704	taskeng.exe	31
PID 1704 wrote to memory of 2396	1704	taskeng.exe	31

C:\Users\Admin\AppData\Local\Temp\e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe
"C:\Users\Admin\AppData\Local\Temp\e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2500

C:\Windows\system32\taskeng.exe
taskeng.exe {B93D5890-952F-4E4A-AD9B-47D0DA0D621E} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe
  C:\Users\Admin\AppData\Local\Temp\e00a57d19a449370f7d0384aa32ddde89dd0fe21937ae1f24fa3037598dd0ec4.exe start
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396

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

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Downloads

memory/2396-5-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2396-6-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2396-7-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2500-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2500-1-0x00000000002E0000-0x00000000002E5000-memory.dmp

Filesize
20KB

Download
memory/2500-2-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2500-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download