systembc | ce7b80ccdd02d7df3fd1215e0673cd51ddc80d8acd5e6db4fee856d0b307de42

Analysis

max time kernel
112s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-08-2024 21:19

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General

Target

b2eb69d01ec25bb62c356a19085ce3e0N.exe
Size

782KB
MD5

b2eb69d01ec25bb62c356a19085ce3e0
SHA1

69aa9470efcb9651313dd7c09b43a10edd202b97
SHA256

ce7b80ccdd02d7df3fd1215e0673cd51ddc80d8acd5e6db4fee856d0b307de42
SHA512

3da55cdee9d6ba4f55c19132dbe12d0bc3b53c4f34b41ecaa5a5a6059903a1764cb3bbdbf7bc8710b2151577a423474062daf372b6116223975fa0b4271647e7
SSDEEP

12288:hpIdn0wvs3tS+Zn2ocK9hyVDI9snwxrOBd34taZo7Oeci:rcn03bV2or2VkQotaZo7

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:

b2eb69d01ec25bb62c356a19085ce3e0N.exe

description	ioc	process
File created	C:\Windows\Tasks\wow64.job	b2eb69d01ec25bb62c356a19085ce3e0N.exe
File opened for modification	C:\Windows\Tasks\wow64.job	b2eb69d01ec25bb62c356a19085ce3e0N.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:

b2eb69d01ec25bb62c356a19085ce3e0N.exeb2eb69d01ec25bb62c356a19085ce3e0N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2eb69d01ec25bb62c356a19085ce3e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2eb69d01ec25bb62c356a19085ce3e0N.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2212 wrote to memory of 1336	2212	taskeng.exe	b2eb69d01ec25bb62c356a19085ce3e0N.exe
PID 2212 wrote to memory of 1336	2212	taskeng.exe	b2eb69d01ec25bb62c356a19085ce3e0N.exe
PID 2212 wrote to memory of 1336	2212	taskeng.exe	b2eb69d01ec25bb62c356a19085ce3e0N.exe
PID 2212 wrote to memory of 1336	2212	taskeng.exe	b2eb69d01ec25bb62c356a19085ce3e0N.exe

C:\Users\Admin\AppData\Local\Temp\b2eb69d01ec25bb62c356a19085ce3e0N.exe
"C:\Users\Admin\AppData\Local\Temp\b2eb69d01ec25bb62c356a19085ce3e0N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2472

C:\Windows\system32\taskeng.exe
taskeng.exe {CE8C06EF-6FA9-4C89-908E-6C29F56061BE} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\b2eb69d01ec25bb62c356a19085ce3e0N.exe
  C:\Users\Admin\AppData\Local\Temp\b2eb69d01ec25bb62c356a19085ce3e0N.exe start
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1336

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

Replay Monitor

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Downloads

memory/1336-5-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1336-6-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1336-7-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2472-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2472-1-0x00000000002A0000-0x00000000002A5000-memory.dmp

Filesize
20KB

Download
memory/2472-2-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2472-8-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2472-9-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download