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
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 11:19

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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
1328	wmsne.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral3/files/0x000900000002344a-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
31	api.ipify.org
32	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 opened for modification	C:\Windows\Tasks\wmsne.job	3e58382005322606bd6ae12da2f209b1.exe
File created	C:\Windows\Tasks\wmsne.job	3e58382005322606bd6ae12da2f209b1.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1624	3180	WerFault.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3180	3e58382005322606bd6ae12da2f209b1.exe
3180	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:3180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3180 -s 484
  2⤵
  - Program crash
  PID:1624

C:\ProgramData\pels\wmsne.exe
C:\ProgramData\pels\wmsne.exe start
1⤵
- Executes dropped EXE
PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3180 -ip 3180
1⤵
PID:920

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\pels\wmsne.exe

Filesize
209KB

MD5
3e58382005322606bd6ae12da2f209b1

SHA1
0afab0c2514061f3d341f720705e54aad4a4f36e

SHA256
9ab42dd0edbb92405904350c550525878312858405e737c7414025dab5981c80

SHA512
13c8df1f07d1584cc827fcc78b691cac78e7cd95ad0e2578974acb9bd8b0c2770d410d743fdc84ffa4c1a431ebe05772715d6bd57489abb7dc249b43b241c1ee

Download Submit
memory/1328-10-0x00000000046A0000-0x00000000047A0000-memory.dmp

Filesize
1024KB

Download
memory/1328-11-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/1328-13-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/1328-17-0x00000000046A0000-0x00000000047A0000-memory.dmp

Filesize
1024KB

Download
memory/3180-1-0x00000000049E0000-0x0000000004AE0000-memory.dmp

Filesize
1024KB

Download
memory/3180-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/3180-9-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/3180-14-0x00000000049E0000-0x0000000004AE0000-memory.dmp

Filesize
1024KB

Download
memory/3180-25-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download