systembc | 7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5

Resubmissions

17-04-2024 09:26

240417-lee7waah53 10

17-04-2024 09:26

17-04-2024 09:26

17-04-2024 09:26

17-04-2024 09:26

16-04-2024 13:38

Analysis

max time kernel
300s
max time network
308s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 09:26

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General

Target

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
Size

1.0MB
MD5

0a286d2f6060a92d15ddfd03063a1486
SHA1

172ae7b2059b420c463daf8ca58a55d8ab500d5c
SHA256

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5
SHA512

bdcccaf8f7636bb54d74d1a1ead3288234a787c3b6d9c3d96e3584fc520088c97c98130e8fe030a1ee9551376b270f0ee5c6e53dd44581850e73abc9493d4cc7
SSDEEP

6144:X9mI/A/bpCQqR5yqL5pbqD8T/ruThC711qC711Q:X9ro/4QqLrqDC/ru8PDPQ

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

yan0212.com:4039

yan0212.net:4039

Signatures

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

Processes:

rcqkq.exe

pid process

4452 rcqkq.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

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

Proxy
T1090

pid	process
4452	rcqkq.exe

flow	ioc
25	api.ipify.org
33	api.ipify.org

Drops file in Windows directory 2 IoCs

Processes:

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

description	ioc	process
File created	C:\Windows\Tasks\rcqkq.job	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
File opened for modification	C:\Windows\Tasks\rcqkq.job	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3128 3488 WerFault.exe 7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

pid	pid_target	process	target process
3128	3488	WerFault.exe	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

pid	process
3488	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
3488	7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe

C:\Users\Admin\AppData\Local\Temp\7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe
"C:\Users\Admin\AppData\Local\Temp\7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 948
2⤵
- Program crash
PID:3128

C:\ProgramData\anfkwgs\rcqkq.exe
C:\ProgramData\anfkwgs\rcqkq.exe start
1⤵
- Executes dropped EXE
PID:4452

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=4152 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3488 -ip 3488
1⤵
PID:1744

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\anfkwgs\rcqkq.exe
Filesize
1.0MB

MD5
0a286d2f6060a92d15ddfd03063a1486

SHA1
172ae7b2059b420c463daf8ca58a55d8ab500d5c

SHA256
7c05833514baa8de4f997a7fcb04096316f2fb44d77fcc0951bb50adbf8d58f5

SHA512
bdcccaf8f7636bb54d74d1a1ead3288234a787c3b6d9c3d96e3584fc520088c97c98130e8fe030a1ee9551376b270f0ee5c6e53dd44581850e73abc9493d4cc7

Download Submit
memory/3488-0-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/3488-2-0x0000000004960000-0x0000000004A60000-memory.dmp

Filesize
1024KB

Download
memory/3488-3-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/3488-4-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/3488-15-0x0000000004960000-0x0000000004A60000-memory.dmp

Filesize
1024KB

Download
memory/3488-28-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/4452-13-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/4452-12-0x0000000004990000-0x0000000004A90000-memory.dmp

Filesize
1024KB

Download
memory/4452-16-0x0000000000400000-0x00000000045E6000-memory.dmp

Filesize
65.9MB

Download
memory/4452-20-0x0000000004990000-0x0000000004A90000-memory.dmp

Filesize
1024KB

Download