remcos | 522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 12:31

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General

Target

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe
Size

520KB
MD5

23ee9bf365c74322d4acb7e13290cf02
SHA1

1036462903b8fec128e34a85ef4d8c6aa7e6eb73
SHA256

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b
SHA512

c2532791a66b725ed70013decc1c5b6afdc7965b95d15adfd3540d56406648c826e31cb6995fab983a5e26c135129ebb015b2178bed3d290d2d95e7bc83e4969
SSDEEP

12288:HStunmMTbnWa/SfKOu+25qopEUvnOqtSni7VE01u8yInDF6qfLV:S0mMTbnWa/SfCR5qopE6nO8Fq01u8jPh

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.162.149.42:7118

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-YP127Q
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

description pid process target process

PID 5080 created 3376 5080 522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe Explorer.EXE

description	pid	process	target process
PID 5080 created 3376	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	Explorer.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qpbyhmmym = "C:\\Users\\Admin\\AppData\\Roaming\\Qpbyhmmym.exe"	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

description	pid	process	target process
PID 5080 set thread context of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.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

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

pid process

5080 522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

pid	process
5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

description	pid	process
Token: SeDebugPrivilege	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe
Token: SeDebugPrivilege	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe

description	pid	process	target process
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe
PID 5080 wrote to memory of 832	5080	522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3376
- C:\Users\Admin\AppData\Local\Temp\522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe
  "C:\Users\Admin\AppData\Local\Temp\522270d9091ce36ad2687b1c5398ddb2c93cb51178bc3db5d22bbd7d8571647b.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5080
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:832

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

Replay Monitor

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Downloads

memory/832-1099-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/832-1100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5080-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/5080-1-0x0000000000500000-0x0000000000588000-memory.dmp

Filesize
544KB

Download
memory/5080-2-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-3-0x0000000005A00000-0x0000000005B1C000-memory.dmp

Filesize
1.1MB

Download
memory/5080-21-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-25-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-47-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-59-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-67-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-65-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-63-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-61-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-57-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-55-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-53-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-51-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-49-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-45-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-43-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-41-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-39-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-37-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-35-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-33-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-29-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-27-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-23-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-19-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-17-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-15-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-11-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-9-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-7-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-31-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-5-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-13-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-4-0x0000000005A00000-0x0000000005B16000-memory.dmp

Filesize
1.1MB

Download
memory/5080-1078-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1079-0x0000000005C30000-0x0000000005CC6000-memory.dmp

Filesize
600KB

Download
memory/5080-1080-0x0000000004980000-0x00000000049CC000-memory.dmp

Filesize
304KB

Download
memory/5080-1084-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1085-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1087-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1086-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/5080-1088-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1089-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5080-1090-0x0000000007600000-0x0000000007BA4000-memory.dmp

Filesize
5.6MB

Download
memory/5080-1091-0x0000000007050000-0x00000000070A4000-memory.dmp

Filesize
336KB

Download
memory/5080-1096-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download