remcos | 90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235b

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
07-08-2023 14:19

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General

Target

9286304f3592ab2de2d549722e6869b8.exe
Size

1.6MB
MD5

9286304f3592ab2de2d549722e6869b8
SHA1

fee5ef729c85412275c371da5d1360fae7a87e44
SHA256

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235b
SHA512

59e323202b6c9ba2239e8eaf2d6c4bc416a61ce28edeace8655791b81023c253aba6f87075752bbbe3d127fd45837bd7d3abfc44f768266cc1325289ce030d9a
SSDEEP

49152:MrS/XYg7k3aKoznVWeOYvsEyKbNWCpQf:MiXPjB5PFJy

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.193.30.230:3343

79.110.49.161:3343

Attributes

audio_folder
MicRecords
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
remcos
mouse_option
false
mutex
Rmc-CQL1U6
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9286304f3592ab2de2d549722e6869b8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2969888527-3102471180-2307688834-1000\Software\Microsoft\Windows\CurrentVersion\Run\Evmswr = "C:\\Users\\Admin\\AppData\\Roaming\\Evmswr.exe"	9286304f3592ab2de2d549722e6869b8.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9286304f3592ab2de2d549722e6869b8.exe

description pid process target process

PID 816 set thread context of 1536 816 9286304f3592ab2de2d549722e6869b8.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1076 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9286304f3592ab2de2d549722e6869b8.exepowershell.exe

description pid process

Token: SeDebugPrivilege 816 9286304f3592ab2de2d549722e6869b8.exe
Token: SeDebugPrivilege 1076 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

1536 MSBuild.exe

description	pid	process	target process
PID 816 set thread context of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe

pid	process
1076	powershell.exe

description	pid	process
Token: SeDebugPrivilege	816	9286304f3592ab2de2d549722e6869b8.exe
Token: SeDebugPrivilege	1076	powershell.exe

pid	process
1536	MSBuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

9286304f3592ab2de2d549722e6869b8.execmd.exe

description	pid	process	target process
PID 816 wrote to memory of 2376	816	9286304f3592ab2de2d549722e6869b8.exe	cmd.exe
PID 816 wrote to memory of 2376	816	9286304f3592ab2de2d549722e6869b8.exe	cmd.exe
PID 816 wrote to memory of 2376	816	9286304f3592ab2de2d549722e6869b8.exe	cmd.exe
PID 816 wrote to memory of 2376	816	9286304f3592ab2de2d549722e6869b8.exe	cmd.exe
PID 2376 wrote to memory of 1076	2376	cmd.exe	powershell.exe
PID 2376 wrote to memory of 1076	2376	cmd.exe	powershell.exe
PID 2376 wrote to memory of 1076	2376	cmd.exe	powershell.exe
PID 2376 wrote to memory of 1076	2376	cmd.exe	powershell.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe
PID 816 wrote to memory of 1536	816	9286304f3592ab2de2d549722e6869b8.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\9286304f3592ab2de2d549722e6869b8.exe
"C:\Users\Admin\AppData\Local\Temp\9286304f3592ab2de2d549722e6869b8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c powershell set-mppreference -exclusionpath C:\
2⤵
- Suspicious use of WriteProcessMemory
PID:2376

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell set-mppreference -exclusionpath C:\
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1076

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
2⤵
- Suspicious use of SetWindowsHookEx
PID:1536

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 Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
72ce5e9b8fe196aa4e7738eec216c8ee

SHA1
bd32b19bc4867ddb9ae65389941f45b459a88e07

SHA256
6c245f51e0713d0571f557d3bfad9dde5050bfbf0f0afd58700515fc7b621d4d

SHA512
c4d19590eb943544db572869ce031736c4bd397617c072b8363c051c8d778482625b4a780f17399f111a961b512fdf05939e89aa0d13a3a2252c0ff112784767

Download Submit
memory/816-54-0x0000000000C00000-0x0000000000D9A000-memory.dmp

Filesize
1.6MB

Download
memory/816-55-0x0000000074AF0000-0x00000000751DE000-memory.dmp

Filesize
6.9MB

Download
memory/816-56-0x0000000004F60000-0x0000000004FA0000-memory.dmp

Filesize
256KB

Download
memory/816-57-0x0000000005340000-0x0000000005434000-memory.dmp

Filesize
976KB

Download
memory/816-58-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-59-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-61-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-63-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-65-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-67-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-69-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-71-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-73-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-75-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-77-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-79-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-81-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-83-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-85-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-87-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-89-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-91-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-93-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-95-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-97-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-99-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-101-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-103-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-105-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-107-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-109-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-111-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-113-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-115-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-117-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-119-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-121-0x0000000005340000-0x000000000542F000-memory.dmp

Filesize
956KB

Download
memory/816-1072-0x0000000074AF0000-0x00000000751DE000-memory.dmp

Filesize
6.9MB

Download
memory/816-1135-0x0000000004F60000-0x0000000004FA0000-memory.dmp

Filesize
256KB

Download
memory/816-1136-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/816-1137-0x0000000000B30000-0x0000000000BA0000-memory.dmp

Filesize
448KB

Download
memory/816-1138-0x00000000021A0000-0x00000000021EC000-memory.dmp

Filesize
304KB

Download
memory/816-1161-0x0000000074AF0000-0x00000000751DE000-memory.dmp

Filesize
6.9MB

Download
memory/1076-1166-0x000000006FD80000-0x000000007032B000-memory.dmp

Filesize
5.7MB

Download
memory/1076-1167-0x000000006FD80000-0x000000007032B000-memory.dmp

Filesize
5.7MB

Download
memory/1076-1169-0x0000000002420000-0x0000000002460000-memory.dmp

Filesize
256KB

Download
memory/1076-1170-0x0000000002420000-0x0000000002460000-memory.dmp

Filesize
256KB

Download
memory/1076-1171-0x0000000002420000-0x0000000002460000-memory.dmp

Filesize
256KB

Download
memory/1076-1172-0x000000006FD80000-0x000000007032B000-memory.dmp

Filesize
5.7MB

Download
memory/1536-1168-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1536-1174-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download