remcos | 53b64d735a9fb66413dcfb2e78def2e785b78133452fb2acd6bf9c4364e0f2a9

Analysis

max time kernel
150s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
04/06/2026, 12:22

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General

Target
goodcommunicationskillforbestpersonhave.hta
Size 1.0MB
Sample260604-pkc69aew3z
SHA256 53b64d735a9fb66413dcfb2e78def2e785b78133452fb2acd6bf9c4364e0f2a9
MD5 f1f3bd972634cdcacaebb5a1fa5dc90b
SHA1 24f36ba495aa5d825429eac6fef2be8b9eb02d21
SHA512 19cf12a304d21d0f5899aef6e27d12799454df21dac1083b59409c8921ba338e8495a086fd26b6c8dc7a47c18cc8cdcebed9a77c284ac9393ff5abd10fdbf508
SSDEEP 768:bzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzX:F+M
TLSH
T1403532FF31F0D861AA1051C48F85BAD1DB4E324690A6651FAE95D1CEB94CA0CE379CBC
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

zenith discovery execution remcos rat suricata

Malware Config

Extracted

Family

remcos

Version

7.2.5 Pro

Botnet

Zenith

daroughgan8hajous20.duckdns.org:29810
daroughgan8hajous30.duckdns.org:29810
daroughgan8hajous40.duckdns.org:29810
daroughgan8hajous50.duckdns.org:29810

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
keylog_crypt
false
keylog_file
koehkss.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
kohuiests-SDFASP
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suricata alert: REMCOS RAT Malware Inbound C2 Communication 7 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe

Suricata alert: REMCOS RAT Malware Outbound C2 Communication 8 IoCs

Network activity triggered a Suricata alert

suricata remcos

flow	pid	Process
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe
4	232	Caspol.exe

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3388	3452	powershell.exe	83

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	3388	powershell.exe
3	3388	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3388 set thread context of 232	3388	powershell.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3388	powershell.exe

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	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Caspol.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe
3388	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3388	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
232	Caspol.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3388 wrote to memory of 3188	3388	powershell.exe	87
PID 3388 wrote to memory of 2396	3388	powershell.exe	88
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89
PID 3388 wrote to memory of 232	3388	powershell.exe	89

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\goodcommunicationskillforbestpersonhave.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- System Location Discovery: System Language Discovery
PID:1144

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "& ([ScriptBlock]::Create(${env:IN-MEMORY_DB_CACHE}))"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:3188
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:2396
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Suricata alert: REMCOS RAT Malware Inbound C2 Communication
  - Suricata alert: REMCOS RAT Malware Outbound C2 Communication
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:232

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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Downloads

__PSScriptPolicyTest_qgmidnzi.p2s.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qgmidnzi.p2s.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/232-27-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-21-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-33-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-31-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-32-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-30-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-12-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-15-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-16-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-19-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-29-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-22-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-20-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-23-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/232-28-0x0000000000400000-0x000000000048D000-memory.dmp

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memory/3388-0-0x000001BA21140000-0x000001BA21150000-memory.dmp

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memory/3388-1-0x000001BA21140000-0x000001BA21150000-memory.dmp

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memory/3388-11-0x000001BA233C0000-0x000001BA233CA000-memory.dmp

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memory/3388-10-0x000001BA21090000-0x000001BA21144000-memory.dmp

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memory/3388-9-0x000001BA21140000-0x000001BA21150000-memory.dmp

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memory/3388-8-0x000001BA07800000-0x000001BA07822000-memory.dmp

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