systembc | e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8

Analysis

max time kernel
147s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 10:11

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe
Size 1.7MB
Sample240509-l735eafb69
SHA256 e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8
MD5 4cd796d40813059763ce0e329f97aaa2
SHA1 e7c982c1d11145379c325c75272d37548a1fab07
SHA512 09f7e0f69ab629f0a2f408aca64d32c890ec9d7ff5bb856b19fd9dfe2f857f234ec17ca46d1d1f08a6e25b9f66c5076e94b94703f019933650ec9a71a328d69b
SSDEEP 24576:GubsnafAPyjSzIubsnafAPyjZrixzFa3VYeYDi8LzxQevGpDxCENQs3qkMfgWahN:YI4+I1ua3yHiKdhvGpDxes3Sfg7L
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

67.211.218.147:4001

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	work.exe

Executes dropped EXE 4 IoCs

pid	Process
2228	work.exe
1828	ogkdraw.exe
2232	hdwso.exe
956	hdwso.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 22 IoCs

pid	Process
1828	ogkdraw.exe
1828	ogkdraw.exe
1828	ogkdraw.exe
2232	hdwso.exe
2232	hdwso.exe
1828	ogkdraw.exe
2232	hdwso.exe
1828	ogkdraw.exe
2232	hdwso.exe
1828	ogkdraw.exe
2232	hdwso.exe
1828	ogkdraw.exe
2232	hdwso.exe
1828	ogkdraw.exe
2232	hdwso.exe
956	hdwso.exe
956	hdwso.exe
956	hdwso.exe
956	hdwso.exe
956	hdwso.exe
956	hdwso.exe
956	hdwso.exe

Drops file in Windows directory 2 IoCs

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

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1828	ogkdraw.exe
1828	ogkdraw.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1828	ogkdraw.exe
2232	hdwso.exe
956	hdwso.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 416	1816	e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe	80
PID 1816 wrote to memory of 416	1816	e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe	80
PID 1816 wrote to memory of 416	1816	e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe	80
PID 416 wrote to memory of 2228	416	cmd.exe	84
PID 416 wrote to memory of 2228	416	cmd.exe	84
PID 416 wrote to memory of 2228	416	cmd.exe	84
PID 2228 wrote to memory of 1828	2228	work.exe	87
PID 2228 wrote to memory of 1828	2228	work.exe	87
PID 2228 wrote to memory of 1828	2228	work.exe	87

C:\Users\Admin\AppData\Local\Temp\e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe
"C:\Users\Admin\AppData\Local\Temp\e213bfb7d5b88a2271f0967ff6ce96aeaa1d826fd12d980f35f3ff1119391ac8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:416
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\work.exe
    work.exe -priverdD
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:2228
  - - C:\Users\Admin\AppData\Local\Temp\RarSFX1\ogkdraw.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX1\ogkdraw.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Drops file in Windows directory
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of SetWindowsHookEx
      PID:1828

C:\ProgramData\wpjm\hdwso.exe
C:\ProgramData\wpjm\hdwso.exe start2
1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:2232

C:\ProgramData\wpjm\hdwso.exe
C:\ProgramData\wpjm\hdwso.exe start2
1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

1.bat

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat
Size 35B
SHA256 065d2b17ad499587dc9de7ee9ecda4938b45da1df388bc72e6627dff220f64d2
MD5 ff59d999beb970447667695ce3273f75
SHA1 316fa09f467ba90ac34a054daf2e92e6e2854ff8
SHA512 d5ac72cb065a3cd3cb118a69a2f356314eeed24dcb4880751e1a3683895e66cedc62607967e29f77a0c27adf1c9fe0efd86e804f693f0a63a5b51b0bf0056b5d
MD5 SHA1 SHA512

Submit Download

work.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\work.exe
Size 1.4MB
SHA256 8ff0e9a4b42d001e8040be325f58e48734643e45a11b667587c6d3a4e4fabb8f
MD5 130a355e9839499e1767866e054f3085
SHA1 515f7b83cb9904ff56a6f78984d4b88b0143ea19
SHA512 0f3f784464beae138c7ca69948854f95c6d2a36e565e5a177ba615012fa1cb98ba7190e60d32d3f396d8ea2461d6334696c5c59447bbf3438101e2f132e3b592
SSDEEP 24576:qubsnafAPyjZrixzFa3VYeYDi8LzxQevGpDxCENQs3qkMfgWahQR:cI1ua3yHiKdhvGpDxes3Sfg7u
MD5 SHA1 SHA512 SSDEEP

Submit Download

ogkdraw.exe

Path C:\Users\Admin\AppData\Local\Temp\RarSFX1\ogkdraw.exe
Size 1.1MB
SHA256 73be3166d9afd30d63a667a6f956be3670cd6e704605d94ee6db031d9b852f78
MD5 d154a07332d28a9bafd5c195905cd5d1
SHA1 21def1f4997fa810d4634b88f71fc7a15cfe636b
SHA512 9489d9e984c0da80c3051eb61fbd0a48a95fc5f18a5b0930b4963197aef0d99b425369812f56b9c60ad30ca4dcac9283c6cdcd4e85031975b8b536a1633f20bc
SSDEEP 24576:THkLrglS/gxV5eo8WP0/fsZ4JHyIJUk/+/PUGWXF6hR5s5z4J7r:TEglSSe8P0/fskSDKkUJXF6T52m/
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/956-42-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/956-47-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/956-46-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/956-45-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/956-44-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/956-43-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-27-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-29-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-19-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-33-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-25-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-35-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-31-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/1828-38-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-40-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-30-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-36-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-28-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-34-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-26-0x0000000000400000-0x0000000000769000-memory.dmp

Download

memory/2232-32-0x0000000000400000-0x0000000000769000-memory.dmp

Download