remcos | bf68190a743215ba83339703d99ecb3507f00182ca1fc4dce9a472e4b0c5f757

Analysis

max time kernel
149s
max time network
141s
platform
windows11-21h2_x64
resource
win11-20251015-en
resource tags

arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system
submitted
29/11/2025, 04:35

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General

Target
63FC36BB8C38D6A3B85A68086198766F.exe
Size 862KB
Sample251129-e7sv4svqcr
SHA256 bf68190a743215ba83339703d99ecb3507f00182ca1fc4dce9a472e4b0c5f757
MD5 63fc36bb8c38d6a3b85a68086198766f
SHA1 03184b777ee3ec7ac39a0523f1dec97504de00db
SHA512 c73919a81077fb6fc838c6b9a8d78bf7bde8ee879561563e60f70c602689665953e5aed88e086330bd720afd827e2329b2edf6fbe149f09b4b7f9c1911b5e569
SSDEEP 24576:FkkVajrVimmiySFGlTWnFhw9X50YSDuxHrsQFXU10Vl:Fk9fVTmzS4l59X2YSyBIQhFVl
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remotehost collection discovery remcos rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

6.0.0 Pro

Botnet

RemoteHost

104.37.174.84:3566

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
@@@
mouse_option
false
mutex
Rmc-0LFC21
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 4 IoCs

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

resource	yara_rule
behavioral2/memory/3324-33-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3324-36-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3328-35-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3328-30-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3328-35-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3328-30-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3261906842-2611857369-1513979305-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	63FC36BB8C38D6A3B85A68086198766F.exe

SmartAssembly .NET packer 1 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral2/memory/5532-6-0x0000000005990000-0x000000000599E000-memory.dmp	SmartAssembly

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 5532 set thread context of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5480 set thread context of 3780	5480	63FC36BB8C38D6A3B85A68086198766F.exe	80
PID 5480 set thread context of 3328	5480	63FC36BB8C38D6A3B85A68086198766F.exe	81
PID 5480 set thread context of 3324	5480	63FC36BB8C38D6A3B85A68086198766F.exe	82

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	63FC36BB8C38D6A3B85A68086198766F.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63FC36BB8C38D6A3B85A68086198766F.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63FC36BB8C38D6A3B85A68086198766F.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63FC36BB8C38D6A3B85A68086198766F.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63FC36BB8C38D6A3B85A68086198766F.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5532	63FC36BB8C38D6A3B85A68086198766F.exe
5532	63FC36BB8C38D6A3B85A68086198766F.exe
3780	63FC36BB8C38D6A3B85A68086198766F.exe
3780	63FC36BB8C38D6A3B85A68086198766F.exe
3324	63FC36BB8C38D6A3B85A68086198766F.exe
3324	63FC36BB8C38D6A3B85A68086198766F.exe
3780	63FC36BB8C38D6A3B85A68086198766F.exe
3780	63FC36BB8C38D6A3B85A68086198766F.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
5480	63FC36BB8C38D6A3B85A68086198766F.exe
5480	63FC36BB8C38D6A3B85A68086198766F.exe
5480	63FC36BB8C38D6A3B85A68086198766F.exe
5480	63FC36BB8C38D6A3B85A68086198766F.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5532	63FC36BB8C38D6A3B85A68086198766F.exe
Token: SeDebugPrivilege	3324	63FC36BB8C38D6A3B85A68086198766F.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5480	63FC36BB8C38D6A3B85A68086198766F.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5532 wrote to memory of 5480	5532	63FC36BB8C38D6A3B85A68086198766F.exe	78
PID 5480 wrote to memory of 5500	5480	63FC36BB8C38D6A3B85A68086198766F.exe	79
PID 5480 wrote to memory of 5500	5480	63FC36BB8C38D6A3B85A68086198766F.exe	79
PID 5480 wrote to memory of 5500	5480	63FC36BB8C38D6A3B85A68086198766F.exe	79
PID 5480 wrote to memory of 3780	5480	63FC36BB8C38D6A3B85A68086198766F.exe	80
PID 5480 wrote to memory of 3780	5480	63FC36BB8C38D6A3B85A68086198766F.exe	80
PID 5480 wrote to memory of 3780	5480	63FC36BB8C38D6A3B85A68086198766F.exe	80
PID 5480 wrote to memory of 3780	5480	63FC36BB8C38D6A3B85A68086198766F.exe	80
PID 5480 wrote to memory of 3328	5480	63FC36BB8C38D6A3B85A68086198766F.exe	81
PID 5480 wrote to memory of 3328	5480	63FC36BB8C38D6A3B85A68086198766F.exe	81
PID 5480 wrote to memory of 3328	5480	63FC36BB8C38D6A3B85A68086198766F.exe	81
PID 5480 wrote to memory of 3328	5480	63FC36BB8C38D6A3B85A68086198766F.exe	81
PID 5480 wrote to memory of 3324	5480	63FC36BB8C38D6A3B85A68086198766F.exe	82
PID 5480 wrote to memory of 3324	5480	63FC36BB8C38D6A3B85A68086198766F.exe	82
PID 5480 wrote to memory of 3324	5480	63FC36BB8C38D6A3B85A68086198766F.exe	82
PID 5480 wrote to memory of 3324	5480	63FC36BB8C38D6A3B85A68086198766F.exe	82

C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
"C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5532
- C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
  "C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5480
- - C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
    C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe /stext "C:\Users\Admin\AppData\Local\Temp\yaxhnafdeyqxwkwzkcn"
    3⤵
    PID:5500
- - C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
    C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe /stext "C:\Users\Admin\AppData\Local\Temp\yaxhnafdeyqxwkwzkcn"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:3780
- - C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
    C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe /stext "C:\Users\Admin\AppData\Local\Temp\ickrntpwsgikgqsdbnazfk"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:3328
- - C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe
    C:\Users\Admin\AppData\Local\Temp\63FC36BB8C38D6A3B85A68086198766F.exe /stext "C:\Users\Admin\AppData\Local\Temp\swpkolaygoaoiwghkpubqxsan"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3324

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

logs.dat

Path C:\ProgramData\@@@\logs.dat
Size 102B
SHA256 fec7d76c2c01915184d02f0b119b5c9e1e41d3f3a90d5854d318fa5024def683
MD5 599089071d825a58105b9c23741a0d99
SHA1 d6a741048cbff79be002f2067c5031c8301088c7
SHA512 47811e97bcaef72f0440e63ee12e8c785ea0bc6a6bb55a6bed85b7d4570742c7f8e7277401343f9f5fe05a0a78067df919b33abd3f1472badd1783b1978adc79
MD5 SHA1 SHA512

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yaxhnafdeyqxwkwzkcn

Path C:\Users\Admin\AppData\Local\Temp\yaxhnafdeyqxwkwzkcn
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

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memory/3324-33-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3324-28-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3324-36-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3324-32-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3328-35-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3328-23-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3328-27-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3328-30-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3780-40-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/3780-34-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/3780-26-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/3780-22-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/3780-29-0x0000000000400000-0x000000000047E000-memory.dmp

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memory/5480-13-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-73-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-19-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-21-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-18-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-17-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-14-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-81-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-12-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-10-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-9-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-82-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-74-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-58-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-66-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-65-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-57-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-20-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-42-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/5480-46-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/5480-45-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/5480-47-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-48-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-49-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5480-51-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/5532-2-0x00000000056D0000-0x0000000005762000-memory.dmp

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memory/5532-1-0x0000000005D30000-0x00000000062D6000-memory.dmp

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memory/5532-3-0x0000000005830000-0x0000000005840000-memory.dmp

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memory/5532-4-0x0000000005790000-0x000000000579A000-memory.dmp

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memory/5532-5-0x00000000059D0000-0x0000000005A6C000-memory.dmp

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memory/5532-6-0x0000000005990000-0x000000000599E000-memory.dmp

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memory/5532-7-0x0000000005830000-0x0000000005840000-memory.dmp

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memory/5532-8-0x00000000071C0000-0x000000000727A000-memory.dmp

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memory/5532-0-0x0000000000B60000-0x0000000000C3E000-memory.dmp

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