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
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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:

lxjj.exe

pid process

3276 lxjj.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

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

Proxy
T1090

pid	process
3276	lxjj.exe

flow	ioc
55	api.ipify.org
56	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

88b7218e0e2ce38dcbb6647aebc1b915.exe

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

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2984 3220 WerFault.exe 88b7218e0e2ce38dcbb6647aebc1b915.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

88b7218e0e2ce38dcbb6647aebc1b915.exe

pid process

3220 88b7218e0e2ce38dcbb6647aebc1b915.exe
3220 88b7218e0e2ce38dcbb6647aebc1b915.exe

pid	pid_target	process	target process
2984	3220	WerFault.exe	88b7218e0e2ce38dcbb6647aebc1b915.exe

pid	process
3220	88b7218e0e2ce38dcbb6647aebc1b915.exe
3220	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:3220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 480
2⤵
- Program crash
PID:2984

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:3624

C:\ProgramData\mxmhnth\lxjj.exe
C:\ProgramData\mxmhnth\lxjj.exe start
1⤵
- Executes dropped EXE
PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3220 -ip 3220
1⤵
PID:3504

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\mxmhnth\lxjj.exe
Filesize
168KB

MD5
88b7218e0e2ce38dcbb6647aebc1b915

SHA1
84359a09ba1025ef5e17521a098aa1a5b27300df

SHA256
c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f

SHA512
1976d16421d6085d9588c62712ea31b7bc31abb1f7bf8cae238b700fd5932d0f0aa46675e824201e5a292811c5bd6fe0e91d7b62d39b85e566a45d814255dd66

Download Submit
memory/3220-1-0x00000000061D0000-0x00000000062D0000-memory.dmp

Filesize
1024KB

Download
memory/3220-2-0x0000000006170000-0x0000000006179000-memory.dmp

Filesize
36KB

Download
memory/3220-3-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/3220-10-0x00000000061D0000-0x00000000062D0000-memory.dmp

Filesize
1024KB

Download
memory/3220-12-0x0000000006170000-0x0000000006179000-memory.dmp

Filesize
36KB

Download
memory/3276-16-0x0000000005FD0000-0x00000000060D0000-memory.dmp

Filesize
1024KB

Download
memory/3276-17-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/3276-23-0x0000000005FD0000-0x00000000060D0000-memory.dmp

Filesize
1024KB

Download