systembc | 9ab42dd0edbb92405904350c550525878312858405e737c7414025dab5981c80

Resubmissions

15-04-2024 11:19

240415-nfa1nada96 10

10-04-2024 03:13

10-04-2024 03:12

10-04-2024 03:12

10-04-2024 03:12

22-12-2023 00:59

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2023 00:59

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General

Target

3e58382005322606bd6ae12da2f209b1.exe
Size

209KB
MD5

3e58382005322606bd6ae12da2f209b1
SHA1

0afab0c2514061f3d341f720705e54aad4a4f36e
SHA256

9ab42dd0edbb92405904350c550525878312858405e737c7414025dab5981c80
SHA512

13c8df1f07d1584cc827fcc78b691cac78e7cd95ad0e2578974acb9bd8b0c2770d410d743fdc84ffa4c1a431ebe05772715d6bd57489abb7dc249b43b241c1ee
SSDEEP

6144:YDnLgI91y1UkT57iJz/DpURWPSvHuUiYphu1UR:cnLh9yn52rpUR5vHuRYpM+R

Score

10^/10

systembc trojan upx

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

pid	Process
4552	evag.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0007000000023228-7.dat	upx
behavioral2/files/0x0007000000023228-6.dat	upx

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
3	api.ipify.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\evag.job	3e58382005322606bd6ae12da2f209b1.exe
File opened for modification	C:\Windows\Tasks\evag.job	3e58382005322606bd6ae12da2f209b1.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2040	2304	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2304	3e58382005322606bd6ae12da2f209b1.exe
2304	3e58382005322606bd6ae12da2f209b1.exe

C:\Users\Admin\AppData\Local\Temp\3e58382005322606bd6ae12da2f209b1.exe
"C:\Users\Admin\AppData\Local\Temp\3e58382005322606bd6ae12da2f209b1.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 928
  2⤵
  - Program crash
  PID:2040

C:\ProgramData\cvqjk\evag.exe
C:\ProgramData\cvqjk\evag.exe start
1⤵
- Executes dropped EXE
PID:4552

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2304 -ip 2304
1⤵
PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\cvqjk\evag.exe

Filesize
115KB

MD5
ef2698b8f3c85ea9e9a14b6e39bb01af

SHA1
dd6147d9ae6f0a9db76f77aee660173e9302cac9

SHA256
2483dcad37b82dd161f9ed0e37446ed4e38d5f16203b1fa8e79203d54c0fbabb

SHA512
45144abf449022625f72ded037c704b1391266b4add33480d3b55691414603ed59ca770c7621fa3e5347f27867eb640667c283349419404b9333ab1d37cc41b8

Download Submit
C:\ProgramData\cvqjk\evag.exe

Filesize
52KB

MD5
22e0c63c500893c0971d21e5bcf9a6d2

SHA1
286ff12982bccdb9388172ac3114b04270e883c4

SHA256
98228cd6a290f3225f2d1994694b3f7e30cda864a190f19bb168b37932830932

SHA512
696ccc8faad5bbbd4e91c544e5731d258f256892a62b341608a3c743cff68124672700b53a3ca45a55bb2ed2b710997b464b160efa98b48005be3646524767af

Download Submit
memory/2304-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/2304-1-0x0000000004770000-0x0000000004870000-memory.dmp

Filesize
1024KB

Download
memory/2304-9-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/2304-14-0x0000000004770000-0x0000000004870000-memory.dmp

Filesize
1024KB

Download
memory/2304-25-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/4552-11-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/4552-10-0x0000000004930000-0x0000000004A30000-memory.dmp

Filesize
1024KB

Download
memory/4552-13-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/4552-17-0x0000000004930000-0x0000000004A30000-memory.dmp

Filesize
1024KB

Download