remcos | c06a6c292aecf86af2feaaa4c13a4ce305c04a37823daf76dda71e9e790507d3

General

Target

build2.exe
Size

1.4MB
MD5

35f21b7e89b981c7a83a2fa5c834d154
SHA1

5eb4dd6d3e659360c48d1c34ba16d29244cfca1e
SHA256

c06a6c292aecf86af2feaaa4c13a4ce305c04a37823daf76dda71e9e790507d3
SHA512

ff034daf566d5675c05ae86441c96119df66183d005628cae1a002b361694b76bc9cacbfb243001d0cf37ad3b95c135945d7c4626ec12f382fac7e91cc6b9fae
SSDEEP

24576:xmI7etHLvLEh0UzA2NfTNTrStsycFWO0EWqTMSay7ty8g9In1rY:/6tXEh0UzA2NfTNTrSts9W+WRRytg9Ia

Score

10^/10

remcos pantalla discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

pantalla

C2

oportunidad-escolombiasegura.cfd:3020

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
registros.dat
keylog_flag
false
keylog_folder
registro
mouse_option
false
mutex
ljblwjdblhaqoiencvmz-UC819L
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
screenshot_path
%AppData%
screenshot_time
10
startup_value
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\QuickTextPaste = "C:\\Users\\Admin\\Pictures\\QuickTextPaste\\Bin\\QuickTextPaste.exe"	build2.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	build2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	build2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2776	build2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2776	2280	build2.exe	31
PID 2280 wrote to memory of 2776	2280	build2.exe	31
PID 2280 wrote to memory of 2776	2280	build2.exe	31
PID 2280 wrote to memory of 2776	2280	build2.exe	31
PID 2280 wrote to memory of 2776	2280	build2.exe	31
PID 2280 wrote to memory of 2776	2280	build2.exe	31

C:\Users\Admin\AppData\Local\Temp\build2.exe
"C:\Users\Admin\AppData\Local\Temp\build2.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\build2.exe
  "C:\Users\Admin\AppData\Local\Temp\build2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\registro\registros.dat

Filesize
184B

MD5
314e640018d1160c1f63ff2d1605374d

SHA1
1abda7a076be7c971f472e6ea52bbea03409cc40

SHA256
a0a8375ad9550d77e630a2bef17609394123bd8e2974a38d9885c697327896c8

SHA512
7c8194acc015522ee62aa765cf2264912d2cafe5adf8cb68edc713b9417db9e1dc0b4842178b56919164aa4e7d23f6c20c69fce4c8f618d745154c1867162158

Download Submit
memory/2280-6-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-0-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-4-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-28-0x0000000000407000-0x0000000000420000-memory.dmp

Filesize
100KB

Download
memory/2280-14-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-3-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-1-0x0000000000407000-0x0000000000420000-memory.dmp

Filesize
100KB

Download
memory/2280-5-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-13-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2280-12-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2776-20-0x0000000000400000-0x000000000059B000-memory.dmp

Filesize
1.6MB

Download
memory/2776-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-11-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-17-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-21-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-22-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-23-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-24-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-25-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-16-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-31-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-32-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-7-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-39-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-48-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-47-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-55-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-56-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-63-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download
memory/2776-64-0x00000000001C0000-0x000000000023F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads