systembc | af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd

General

Target

af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
Size

253KB
MD5

9cd154556bc65d6fe2007074790248f7
SHA1

7340996d675919b7212134457b425923eb42563e
SHA256

af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd
SHA512

e2d55fcd373b5768023638a1e0ad3229710a75034c7acfd0896279ad716a72c1d51bd01710c4baba6be7b6919eb93c251de7632e7d258e95648a878099dd2c3a

Score

10^/10

systembc suricata trojan

Malware Config

Extracted

Family

systembc

C2

sdadvert197.com:4044

mexstat128.com:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata
Executes dropped EXE 1 IoCs

Processes:

sdatn.exe

pid process

2808 sdatn.exe
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

23 api.ipify.org
28 ip4.seeip.org
29 ip4.seeip.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

pid	process
2808	sdatn.exe

flow	ioc
23	api.ipify.org
28	ip4.seeip.org
29	ip4.seeip.org

Drops file in Windows directory 2 IoCs

Processes:

af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe

description	ioc	process
File created	C:\Windows\Tasks\sdatn.job	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
File opened for modification	C:\Windows\Tasks\sdatn.job	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe

Program crash 8 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4208	3036	WerFault.exe	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
4860	2808	WerFault.exe	sdatn.exe
4748	2808	WerFault.exe	sdatn.exe
5108	3036	WerFault.exe	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
3736	3036	WerFault.exe	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
560	2808	WerFault.exe	sdatn.exe
4520	2808	WerFault.exe	sdatn.exe
3032	3036	WerFault.exe	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe

pid	process
3036	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
3036	af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe

C:\Users\Admin\AppData\Local\Temp\af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe
"C:\Users\Admin\AppData\Local\Temp\af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:3036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 492
2⤵
- Program crash
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 944
2⤵
- Program crash
PID:5108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 956
2⤵
- Program crash
PID:3736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 968
2⤵
- Program crash
PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3036 -ip 3036
1⤵
PID:3188

C:\ProgramData\rgtehkh\sdatn.exe
C:\ProgramData\rgtehkh\sdatn.exe start
1⤵
- Executes dropped EXE
PID:2808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 488
2⤵
- Program crash
PID:4860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 776
2⤵
- Program crash
PID:4748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 852
2⤵
- Program crash
PID:560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 728
2⤵
- Program crash
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2808 -ip 2808
1⤵
PID:3148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2808 -ip 2808
1⤵
PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3036 -ip 3036
1⤵
PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3036 -ip 3036
1⤵
PID:3920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2808 -ip 2808
1⤵
PID:600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2808 -ip 2808
1⤵
PID:1072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3036 -ip 3036
1⤵
PID:4264

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Connection Proxy

1

T1090

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Connection Proxy

1

T1090

Exfiltration

Impact

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Downloads

C:\ProgramData\rgtehkh\sdatn.exe
Filesize
253KB

MD5
9cd154556bc65d6fe2007074790248f7

SHA1
7340996d675919b7212134457b425923eb42563e

SHA256
af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd

SHA512
e2d55fcd373b5768023638a1e0ad3229710a75034c7acfd0896279ad716a72c1d51bd01710c4baba6be7b6919eb93c251de7632e7d258e95648a878099dd2c3a

Download Submit
C:\ProgramData\rgtehkh\sdatn.exe
Filesize
253KB

MD5
9cd154556bc65d6fe2007074790248f7

SHA1
7340996d675919b7212134457b425923eb42563e

SHA256
af35b29f584f06fefbdb9f25bf0dd3679661e449bd3a9e7f282906b27ea517dd

SHA512
e2d55fcd373b5768023638a1e0ad3229710a75034c7acfd0896279ad716a72c1d51bd01710c4baba6be7b6919eb93c251de7632e7d258e95648a878099dd2c3a

Download Submit
memory/2808-136-0x000000000259E000-0x00000000025A5000-memory.dmp

Filesize
28KB

Download
memory/2808-137-0x000000000259E000-0x00000000025A5000-memory.dmp

Filesize
28KB

Download
memory/2808-138-0x0000000000400000-0x00000000022FC000-memory.dmp

Filesize
31.0MB

Download
memory/3036-130-0x0000000002455000-0x000000000245B000-memory.dmp

Filesize
24KB

Download
memory/3036-131-0x0000000002455000-0x000000000245B000-memory.dmp

Filesize
24KB

Download
memory/3036-132-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/3036-133-0x0000000000400000-0x00000000022FC000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads