remcos | 0da22c340fbafbe02cff4b67706bac0c08c8de02846754e19820beb48070d222

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-02-2025 10:27

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General

Target

fp8N0KDGAqlhmkD.exe
Size

974KB
MD5

2e41d04e9012ed4dcfa86a63175992ac
SHA1

4b7c733e464500833e364eca4c493de2b2ced3b0
SHA256

3cb79b389e24d9c7cb87e631b41e0cf3a83b18d7205c7808266d9221928294c2
SHA512

88356731abf96745bf93fbccb5ca3eac56190b4fd4a5ab16b9932f74080621f27902560a4a9071113b10b0cbc7d0d39449f87573b2f8d4f5a43087b6e0acb5c2
SSDEEP

24576:+bYUdN6DuMFPmciYaUQbQKxAUg/u+SycwoYPjlfL:+XdNIuiecX+vsSyqYdL

Score

10^/10

remcos remotehost collection discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

tjwpn04kn.localto.net:2247

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
hytg
mouse_option
false
mutex
Rmc-JD0XH1
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2896-52-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2984-56-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2952-51-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2952-51-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2896-52-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2772	powershell.exe
2852	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2428 set thread context of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2764 set thread context of 2896	2764	vbc.exe	38
PID 2764 set thread context of 2952	2764	vbc.exe	39
PID 2764 set thread context of 2984	2764	vbc.exe	40

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 8 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fp8N0KDGAqlhmkD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2428	fp8N0KDGAqlhmkD.exe
2852	powershell.exe
2772	powershell.exe
2428	fp8N0KDGAqlhmkD.exe
2896	vbc.exe
2896	vbc.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2764	vbc.exe
2764	vbc.exe
2764	vbc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	fp8N0KDGAqlhmkD.exe
Token: SeDebugPrivilege	2852	powershell.exe
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	2984	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	vbc.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2772	2428	fp8N0KDGAqlhmkD.exe	31
PID 2428 wrote to memory of 2772	2428	fp8N0KDGAqlhmkD.exe	31
PID 2428 wrote to memory of 2772	2428	fp8N0KDGAqlhmkD.exe	31
PID 2428 wrote to memory of 2772	2428	fp8N0KDGAqlhmkD.exe	31
PID 2428 wrote to memory of 2852	2428	fp8N0KDGAqlhmkD.exe	33
PID 2428 wrote to memory of 2852	2428	fp8N0KDGAqlhmkD.exe	33
PID 2428 wrote to memory of 2852	2428	fp8N0KDGAqlhmkD.exe	33
PID 2428 wrote to memory of 2852	2428	fp8N0KDGAqlhmkD.exe	33
PID 2428 wrote to memory of 2828	2428	fp8N0KDGAqlhmkD.exe	34
PID 2428 wrote to memory of 2828	2428	fp8N0KDGAqlhmkD.exe	34
PID 2428 wrote to memory of 2828	2428	fp8N0KDGAqlhmkD.exe	34
PID 2428 wrote to memory of 2828	2428	fp8N0KDGAqlhmkD.exe	34
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2428 wrote to memory of 2764	2428	fp8N0KDGAqlhmkD.exe	37
PID 2764 wrote to memory of 2896	2764	vbc.exe	38
PID 2764 wrote to memory of 2896	2764	vbc.exe	38
PID 2764 wrote to memory of 2896	2764	vbc.exe	38
PID 2764 wrote to memory of 2896	2764	vbc.exe	38
PID 2764 wrote to memory of 2896	2764	vbc.exe	38
PID 2764 wrote to memory of 2952	2764	vbc.exe	39
PID 2764 wrote to memory of 2952	2764	vbc.exe	39
PID 2764 wrote to memory of 2952	2764	vbc.exe	39
PID 2764 wrote to memory of 2952	2764	vbc.exe	39
PID 2764 wrote to memory of 2952	2764	vbc.exe	39
PID 2764 wrote to memory of 2984	2764	vbc.exe	40
PID 2764 wrote to memory of 2984	2764	vbc.exe	40
PID 2764 wrote to memory of 2984	2764	vbc.exe	40
PID 2764 wrote to memory of 2984	2764	vbc.exe	40
PID 2764 wrote to memory of 2984	2764	vbc.exe	40

C:\Users\Admin\AppData\Local\Temp\fp8N0KDGAqlhmkD.exe
"C:\Users\Admin\AppData\Local\Temp\fp8N0KDGAqlhmkD.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\fp8N0KDGAqlhmkD.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2772
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QkLFHHdCPdqG.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QkLFHHdCPdqG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0F4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\ubzfscsbyccaagdoqtlormtqhqfndvnj"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2896
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\eveqk"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2952
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\oxsilnnw"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\hytg\logs.dat

Filesize
144B

MD5
e6f0aebea47434765b8b4b061e7c1c9b

SHA1
adb80712f413fda63e9f540986beaa020e05fc7f

SHA256
6a012b4d5ecbb9a30922b5b2ae5d326ff4b688e7a3ed72f87cacae2b3dbf8ec2

SHA512
7154c8d347bfdc02a3f0ccf225f7f52aba8c51de9d491f73b558acca85ec25db656a5ce8430359dad15751d9f87faa31eb26a1e06c3d98c610bc78424d1477ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF0F4.tmp

Filesize
1KB

MD5
83ce82f446e624097ec4983ea6a9b449

SHA1
001e2f25762b6effced4af872e65a111f027907e

SHA256
f51508a922ab23c0d34616db323601e63c75571316316c55add245d2a7667574

SHA512
c7109f77b63760be16153372153cd20ee0451c51de0f23dbd95e97640ff7f2ac6a560ace2eda5d20a919462b97c53d709b3b7416c6883f6626935950e0ccde3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\ubzfscsbyccaagdoqtlormtqhqfndvnj

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\SPZWE68IUZDHAS670CWM.temp

Filesize
7KB

MD5
ab48a04b20c7448545488f9a788ddae5

SHA1
70ccf93694bb57cc260039c85cb0c4497e8a971f

SHA256
fc3eed2b25c8848cd4cc92af6c30385d89fee5b61de822bcb689dd02bee258d2

SHA512
c6a5b7af5e131a0eb35eec53922e64864b81bd2be78c440a0fea0a62d7d3894cd0b851a1910d803e137a4764cd235e93c5211f712c4b43d68ae8789bca3303cd

Download Submit
memory/2428-38-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-1-0x00000000012B0000-0x00000000013AA000-memory.dmp

Filesize
1000KB

Download
memory/2428-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-3-0x0000000000980000-0x000000000099E000-memory.dmp

Filesize
120KB

Download
memory/2428-4-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2428-5-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-6-0x00000000050E0000-0x00000000051A2000-memory.dmp

Filesize
776KB

Download
memory/2428-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2764-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-31-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-88-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-81-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-80-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-73-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-72-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-68-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2764-66-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2764-67-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2764-63-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2764-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2896-45-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-46-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2896-49-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2896-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2952-50-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2952-51-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2952-48-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2952-47-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-53-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-54-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2984-55-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2984-56-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download