systembc | c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 04:43

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General

Target

c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
Size

1.2MB
MD5

c306310f6b7674b64e7c48e46d480509
SHA1

0e75e48e8e63f081ee79aaf3bc70004d40f00b08
SHA256

c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6
SHA512

73a7035def27aa1fc7748e5f25d98c569534e7bb8c5d65731fcf2ae26e6a2101e635f26548f7b759fcc0bc5b5f32a0f9f0888e51e03f7287ed67feef625ff711
SSDEEP

24576:Oua4nde8YqNMGmKhQBgliNDaKiky+YacnExAOYbyp:LoWqfgliNDafthacnqAOj

Score

10^/10

systembc discovery trojan

Malware Config

Extracted

Family

systembc

wodresomdaymomentum.org

Attributes

dns
5.132.191.104

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 3 IoCs

description	pid	Process	procid_target
PID 3332 created 3500	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	56
PID 2140 created 3500	2140	bflttts.exe	56
PID 4696 created 3500	4696	bflttts.exe	56

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windsc.vbs	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe

Executes dropped EXE 4 IoCs

pid	Process
2140	bflttts.exe
4012	bflttts.exe
4696	bflttts.exe
2044	bflttts.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3332 set thread context of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 2140 set thread context of 4012	2140	bflttts.exe	101
PID 4696 set thread context of 2044	4696	bflttts.exe	103

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bflttts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bflttts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bflttts.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
2140	bflttts.exe
2140	bflttts.exe
2140	bflttts.exe
4696	bflttts.exe
4696	bflttts.exe
4696	bflttts.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
Token: SeDebugPrivilege	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
Token: SeDebugPrivilege	2140	bflttts.exe
Token: SeDebugPrivilege	2140	bflttts.exe
Token: SeDebugPrivilege	4696	bflttts.exe
Token: SeDebugPrivilege	4696	bflttts.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 3332 wrote to memory of 2372	3332	c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe	96
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 2140 wrote to memory of 4012	2140	bflttts.exe	101
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103
PID 4696 wrote to memory of 2044	4696	bflttts.exe	103

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3500
- C:\Users\Admin\AppData\Local\Temp\c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
  "C:\Users\Admin\AppData\Local\Temp\c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3332
- C:\Users\Admin\AppData\Local\Temp\c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe
  "C:\Users\Admin\AppData\Local\Temp\c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\ProgramData\usstkmf\bflttts.exe
  "C:\ProgramData\usstkmf\bflttts.exe"
  2⤵
  - Executes dropped EXE
  PID:4012
- C:\ProgramData\usstkmf\bflttts.exe
  "C:\ProgramData\usstkmf\bflttts.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2044

C:\ProgramData\usstkmf\bflttts.exe
C:\ProgramData\usstkmf\bflttts.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2140

C:\ProgramData\usstkmf\bflttts.exe
C:\ProgramData\usstkmf\bflttts.exe
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\usstkmf\bflttts.exe

Filesize
1.2MB

MD5
c306310f6b7674b64e7c48e46d480509

SHA1
0e75e48e8e63f081ee79aaf3bc70004d40f00b08

SHA256
c477f22f36f0c7e272e694e0e630996f6bfdbf5ba93296dabe63581ab8ca96f6

SHA512
73a7035def27aa1fc7748e5f25d98c569534e7bb8c5d65731fcf2ae26e6a2101e635f26548f7b759fcc0bc5b5f32a0f9f0888e51e03f7287ed67feef625ff711

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
242B

MD5
d2e4ea897b2046d87b0cfb3e087479a1

SHA1
6138f65749e92fd6c3e11c39bab067597eaca52b

SHA256
66e8c7f99f1834aa65dcf5a49bbd55bb107e130db4ca279db4b6c41c988fa360

SHA512
a92d16919a93f4a3aea32073d3dc3bc2ddc3aacc48e9c7316313be1f4be36b6d1ade59541f5bf65bb6d0573479d28d7e854ca1b59bcf32cb5221e40ce4d1d426

Download Submit
memory/2140-1357-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2680-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2681-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2140-2694-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2695-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2689-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2683-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2140-2682-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/2372-1351-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3332-18-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-62-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-60-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-70-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-68-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-66-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-64-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-59-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-54-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-52-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-50-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-48-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-46-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-44-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-42-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-38-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-36-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-34-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-32-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-29-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-20-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-6-0x0000000005850000-0x00000000058E2000-memory.dmp

Filesize
584KB

Download
memory/3332-17-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-14-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-10-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-8-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-7-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-12-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-56-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-41-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-30-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-26-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-24-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-22-0x0000000005660000-0x0000000005758000-memory.dmp

Filesize
992KB

Download
memory/3332-1329-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1330-0x0000000005950000-0x00000000059A8000-memory.dmp

Filesize
352KB

Download
memory/3332-1331-0x00000000059B0000-0x0000000005A06000-memory.dmp

Filesize
344KB

Download
memory/3332-1332-0x0000000005A30000-0x0000000005A7C000-memory.dmp

Filesize
304KB

Download
memory/3332-1333-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/3332-1334-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1335-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1336-0x00000000062C0000-0x0000000006314000-memory.dmp

Filesize
336KB

Download
memory/3332-1342-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-5-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/3332-4-0x0000000005660000-0x000000000575E000-memory.dmp

Filesize
1016KB

Download
memory/3332-3-0x00000000054F0000-0x00000000055EE000-memory.dmp

Filesize
1016KB

Download
memory/3332-2-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1-0x0000000000A60000-0x0000000000B98000-memory.dmp

Filesize
1.2MB

Download
memory/3332-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/3332-1345-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1344-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1352-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/3332-1350-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download