remcos | f2c965e6e43f89fdb833956afae4dff0dda154b92b2fab4acd813eb4ff5343ea

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
04/05/2026, 09:58

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General

Target
2026-05-04_c6ca87712abeb39dec43346d1b47984b_elex_parallax_remcos_remocs_wannacry.exe
Size 111KB
Sample260504-lzhthaf16w
SHA256 f2c965e6e43f89fdb833956afae4dff0dda154b92b2fab4acd813eb4ff5343ea
MD5 c6ca87712abeb39dec43346d1b47984b
SHA1 bca1912bd28e3a6b78493fe62b3e4c53b45162fc
SHA512 6b5926593a4475a4f68b3b66bfe35608a435ba4945b84de344f1bf4118a4fa161922e3b8f80f9fb32fc7e93d7a50632db1bbc3489f4d221449ba6e2004134367
SSDEEP 3072:mYh1qaSs6IF9OK4b80S2Van4Va1cpcQjed5OzqhUAa:Dh1qn3IF9Obbj/a1cpcQjeHOzqhUA
TLSH
T14DB3E867F20B80A3D863027156507B72EEBCBC321A5D5157E7E4D8811DF588E902AAFF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

treintaydos discovery remcos rat

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

TREINTAYDOS

treintaydosrem.duckdns.org:1010

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-F4H8Z6
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

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

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs

resource	yara_rule
behavioral2/memory/1432-0-0x0000000000400000-0x0000000000420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2908	1432	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 1 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	2026-05-04_c6ca87712abeb39dec43346d1b47984b_elex_parallax_remcos_remocs_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-05-04_c6ca87712abeb39dec43346d1b47984b_elex_parallax_remcos_remocs_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_c6ca87712abeb39dec43346d1b47984b_elex_parallax_remcos_remocs_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 232
  2⤵
  - Program crash
  PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1432 -ip 1432
1⤵
PID:3372

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

memory/1432-0-0x0000000000400000-0x0000000000420000-memory.dmp

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