systembc | ce5e9c20abd27bb7d81c53e2c5155b347aa0ee4df71e002375cb467e4a5c09b8

General

Target

d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
Size

543KB
MD5

d37240a8e11a1cd9d519382742979e45
SHA1

f5989f41215dd5caf0b0782fdd6f2f54e8b6caf7
SHA256

ce5e9c20abd27bb7d81c53e2c5155b347aa0ee4df71e002375cb467e4a5c09b8
SHA512

697815a69d005bf844ed16154641a97b93bcc93a23eae6b92007433d5735e68656d5cc3cb7f8046b77e374f122dc67b4de3134833883c39c63b0004008887cf6
SSDEEP

12288:G2VzZDp7JeUQAy+k/Kw9L0DFZ/E8OqpfmG3ILAxWP9V0q:GGeV9L+/Ejqpfm8IExWP9V0q

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

C2

138.197.141.150:4005

protoukt.com:4005

Attributes

dns
5.132.191.104

92.163.33.248

206.189.120.27

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

Executes dropped EXE 1 IoCs

pid	Process
3264	prtkdun.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\arch	prtkdun.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Tasks\prtkdun.job	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
File created	C:\Windows\Tasks\prtkdun.job	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	prtkdun.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3652	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
3652	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
3652	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
3652	d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
3264	prtkdun.exe
3264	prtkdun.exe

C:\Users\Admin\AppData\Local\Temp\d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d37240a8e11a1cd9d519382742979e45_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3652

C:\ProgramData\gulcgq\prtkdun.exe
C:\ProgramData\gulcgq\prtkdun.exe start2
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\gulcgq\prtkdun.exe

Filesize
543KB

MD5
d37240a8e11a1cd9d519382742979e45

SHA1
f5989f41215dd5caf0b0782fdd6f2f54e8b6caf7

SHA256
ce5e9c20abd27bb7d81c53e2c5155b347aa0ee4df71e002375cb467e4a5c09b8

SHA512
697815a69d005bf844ed16154641a97b93bcc93a23eae6b92007433d5735e68656d5cc3cb7f8046b77e374f122dc67b4de3134833883c39c63b0004008887cf6

Download Submit
memory/3264-25-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-27-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-20-0x00000000020E0000-0x0000000002112000-memory.dmp

Filesize
200KB

Download
memory/3264-42-0x00000000020E0000-0x0000000002112000-memory.dmp

Filesize
200KB

Download
memory/3264-21-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-31-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3264-29-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-22-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-28-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-26-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-24-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3264-23-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/3652-0-0x0000000000790000-0x00000000007C2000-memory.dmp

Filesize
200KB

Download
memory/3652-6-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-8-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-1-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-11-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/3652-3-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-10-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-7-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-9-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-2-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/3652-5-0x0000000000790000-0x00000000007C2000-memory.dmp

Filesize
200KB

Download
memory/3652-36-0x0000000000790000-0x00000000007C2000-memory.dmp

Filesize
200KB

Download
memory/3652-4-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download

Analysis

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