systembc | c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f

Resubmissions

18-04-2024 05:27

240418-f5tv3acd72 10

18-04-2024 05:27

18-04-2024 05:27

18-04-2024 05:27

18-04-2024 05:27

Analysis

max time kernel
1197s
max time network
1199s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
18-04-2024 05:27

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General

Target

88b7218e0e2ce38dcbb6647aebc1b915.exe
Size

168KB
MD5

88b7218e0e2ce38dcbb6647aebc1b915
SHA1

84359a09ba1025ef5e17521a098aa1a5b27300df
SHA256

c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f
SHA512

1976d16421d6085d9588c62712ea31b7bc31abb1f7bf8cae238b700fd5932d0f0aa46675e824201e5a292811c5bd6fe0e91d7b62d39b85e566a45d814255dd66
SSDEEP

3072:GlN7OGtM7vN+Ma/lkphLMzirj6gvzH2Hd81VrX2fMZ:k7OhfCGh4zw1vDE2nB

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

knock0909.monster:4035

knock0909.xyz:4035

Signatures

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

Processes:

nvxbd.exe

pid process

2924 nvxbd.exe
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

pid	process
2924	nvxbd.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

88b7218e0e2ce38dcbb6647aebc1b915.exe

description	ioc	process
File opened for modification	C:\Windows\Tasks\nvxbd.job	88b7218e0e2ce38dcbb6647aebc1b915.exe
File created	C:\Windows\Tasks\nvxbd.job	88b7218e0e2ce38dcbb6647aebc1b915.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

88b7218e0e2ce38dcbb6647aebc1b915.exe

pid process

168 88b7218e0e2ce38dcbb6647aebc1b915.exe
168 88b7218e0e2ce38dcbb6647aebc1b915.exe

pid	process
168	88b7218e0e2ce38dcbb6647aebc1b915.exe
168	88b7218e0e2ce38dcbb6647aebc1b915.exe

C:\Users\Admin\AppData\Local\Temp\88b7218e0e2ce38dcbb6647aebc1b915.exe
"C:\Users\Admin\AppData\Local\Temp\88b7218e0e2ce38dcbb6647aebc1b915.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:168

C:\ProgramData\ekewq\nvxbd.exe
C:\ProgramData\ekewq\nvxbd.exe start
1⤵
- Executes dropped EXE
PID:2924

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Proxy

T1090

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\ekewq\nvxbd.exe
Filesize
168KB

MD5
88b7218e0e2ce38dcbb6647aebc1b915

SHA1
84359a09ba1025ef5e17521a098aa1a5b27300df

SHA256
c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f

SHA512
1976d16421d6085d9588c62712ea31b7bc31abb1f7bf8cae238b700fd5932d0f0aa46675e824201e5a292811c5bd6fe0e91d7b62d39b85e566a45d814255dd66

Download Submit
memory/168-1-0x0000000006240000-0x0000000006340000-memory.dmp

Filesize
1024KB

Download
memory/168-2-0x0000000006030000-0x0000000006039000-memory.dmp

Filesize
36KB

Download
memory/168-3-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/168-14-0x0000000006240000-0x0000000006340000-memory.dmp

Filesize
1024KB

Download
memory/2924-11-0x00000000062A0000-0x00000000063A0000-memory.dmp

Filesize
1024KB

Download
memory/2924-12-0x0000000006180000-0x0000000006189000-memory.dmp

Filesize
36KB

Download
memory/2924-13-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/2924-18-0x00000000062A0000-0x00000000063A0000-memory.dmp

Filesize
1024KB

Download