systembc | 2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9

Resubmissions

18-04-2024 11:08

240418-m8wmdsbc27 10

18-04-2024 11:08

18-04-2024 11:08

18-04-2024 11:08

18-04-2024 11:08

18-04-2024 09:41

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18-04-2024 11:08

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General

Target

2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe
Size

209KB
MD5

8e9ddb099e71555326413d9a3a930584
SHA1

96350dae3f42d37341b3da7410aabe5c42384156
SHA256

2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9
SHA512

8d34f32ee48e3d399e020ba3ab4eeab9f1fbdb55a4a5b61b120280975990058221c75be001d09b4f804400977bb769e9ba1fdbd68e90f7db97bd78a69001f09c
SSDEEP

6144:YDnLgI91y1UkT57iJz/DpURWPSvHuUiYphu1Ux:cnLh9yn52rpUR5vHuRYpM+x

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
2488	mlpgs.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d000000013a06-6.dat	upx

Looks up external IP address via web service 4 IoCs

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

flow	ioc
5	api.ipify.org
6	api.ipify.org
7	ip4.seeip.org
8	ip4.seeip.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\mlpgs.job	2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe
File opened for modification	C:\Windows\Tasks\mlpgs.job	2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1900	2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2488	1624	taskeng.exe	29
PID 1624 wrote to memory of 2488	1624	taskeng.exe	29
PID 1624 wrote to memory of 2488	1624	taskeng.exe	29
PID 1624 wrote to memory of 2488	1624	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe
"C:\Users\Admin\AppData\Local\Temp\2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1900

C:\Windows\system32\taskeng.exe
taskeng.exe {565B303F-82FB-488F-85A1-7A8B8823498F} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1624
- C:\ProgramData\qsmvwx\mlpgs.exe
  C:\ProgramData\qsmvwx\mlpgs.exe start
  2⤵
  - Executes dropped EXE
  PID:2488

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\qsmvwx\mlpgs.exe

Filesize
209KB

MD5
8e9ddb099e71555326413d9a3a930584

SHA1
96350dae3f42d37341b3da7410aabe5c42384156

SHA256
2ff18fb4a4d05b7d419a88167d7001bb000eac2f4861bf3849a713b6b701f4c9

SHA512
8d34f32ee48e3d399e020ba3ab4eeab9f1fbdb55a4a5b61b120280975990058221c75be001d09b4f804400977bb769e9ba1fdbd68e90f7db97bd78a69001f09c

Download Submit
memory/1900-1-0x00000000046D0000-0x00000000047D0000-memory.dmp

Filesize
1024KB

Download
memory/1900-2-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/1900-9-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/1900-14-0x00000000046D0000-0x00000000047D0000-memory.dmp

Filesize
1024KB

Download
memory/2488-10-0x00000000047A0000-0x00000000048A0000-memory.dmp

Filesize
1024KB

Download
memory/2488-11-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/2488-13-0x0000000000400000-0x00000000045F0000-memory.dmp

Filesize
65.9MB

Download
memory/2488-17-0x00000000047A0000-0x00000000048A0000-memory.dmp

Filesize
1024KB

Download