remcos | f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 17:13

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General

Target

f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe
Size

2.4MB
MD5

215c6060f9adfba0cb6b5d624dfe7bab
SHA1

ad306b20750d8a4a710f99425da947685d3b1cdf
SHA256

f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6
SHA512

a90e9fe28d45d37a3a05e6e2f4d2d8b7c478528f39d74efcf8ab2325f70cff2409e557d56dc3578d5d139efbd0235a26602097358a6af10fe64e13b393e47e21
SSDEEP

49152:y/irYhITtmZrbQhrHqxZrbQhrHqFqUYwRxP/llAizXMLJ89z:yatmZrbQhrHqxZrbQhrHqFqU/nNlNzXP

Score

10^/10

remcos sol2 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

sol2

formationslistcomplet2.sexidude.com:30201

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
qazxswedcvfrdsasx-WVOMOA
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
Downloads MZ/PE file

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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UniFab = "C:\\Users\\Admin\\Documents\\UniFab\\Bin\\UniFab.exe"	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4236 set thread context of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 3108 set thread context of 804	3108	csc.exe	97

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5352	4236	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 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	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3108	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
804	MSBuild.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 4236 wrote to memory of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 4236 wrote to memory of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 4236 wrote to memory of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 4236 wrote to memory of 3108	4236	f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe	88
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97
PID 3108 wrote to memory of 804	3108	csc.exe	97

C:\Users\Admin\AppData\Local\Temp\f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe
"C:\Users\Admin\AppData\Local\Temp\f587b07402eeffdface43b9298302e339f5e58c5c548bd43bb8523356229a5a6.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3108
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4236 -s 264
  2⤵
  - Program crash
  PID:5352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4236 -ip 4236
1⤵
PID:5316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

C:\ProgramData\registro\registros.dat

Filesize
184B

MD5
7379ed77c3887c388c6d49502436c0d7

SHA1
1e6a0778a2ef3e25b0a8ed7443eed63cf1457598

SHA256
136cd8f30ddf936824b984681409938f274dd1f77783f975f815a266e99cab80

SHA512
b65483ef9554a97f03e6b50f35d9df6e8780d54ece1ca38e9b22a3e87c36c3971308db1b0d34e5c64a10666303b54931b1a593330acafd00928fc22fcb04faa7

Download Submit
memory/804-1843-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-1858-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3108-56-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-1839-0x0000000006390000-0x00000000063E4000-memory.dmp

Filesize
336KB

Download
memory/3108-11-0x0000000000260000-0x000000000046F000-memory.dmp

Filesize
2.1MB

Download
memory/3108-54-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-38-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-52-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-1837-0x0000000005CE0000-0x0000000005D46000-memory.dmp

Filesize
408KB

Download
memory/3108-36-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-34-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-32-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-30-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-28-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-26-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-24-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-22-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-20-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-68-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-64-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-62-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-60-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-58-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-7-0x0000000000F20000-0x0000000000FBA000-memory.dmp

Filesize
616KB

Download
memory/3108-12-0x0000000005A40000-0x0000000005B06000-memory.dmp

Filesize
792KB

Download
memory/3108-66-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-44-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-49-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-46-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-50-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-42-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-40-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-18-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-14-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-13-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-16-0x0000000005A40000-0x0000000005B00000-memory.dmp

Filesize
768KB

Download
memory/3108-1835-0x0000000005BA0000-0x0000000005BF6000-memory.dmp

Filesize
344KB

Download
memory/3108-1836-0x0000000005C00000-0x0000000005C4C000-memory.dmp

Filesize
304KB

Download
memory/4236-5-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-8-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-10-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-2-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-1838-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/4236-6-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-4-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-1855-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-1856-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download
memory/4236-0-0x0000000000400000-0x0000000000672000-memory.dmp

Filesize
2.4MB

Download
memory/4236-1-0x0000000000416000-0x000000000042F000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads