remcos | 420fc1f018d368ace343cfa3016fdd983491fba8b9c77d94ff79fdea6ed8e8c6

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 14:45

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General

Target

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
Size

682KB
MD5

0ddc625bc9f8a86c9f20d1f03055e66e
SHA1

34aeb0edb91628bf5ac25cc03a8bb4f24f924724
SHA256

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4
SHA512

57526e73e2c3311c42e7c232aaded544a9066df3e953df77e554414d5dfad749fdb5834abef4d606804d855f8e22e76c5d27bd3bb1eb59fe923486c7af6c9e29
SSDEEP

12288:pXfbhIAe6RVnGSTustt+185wjXGF5BZJtmI:pDhIkrGST/t8185w6FTD

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

193.29.104.13:8954

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-3UBRU7
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Zbialdpk = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ooxphyia\\Zbialdpk.exe\""	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

description	pid	process	target process
PID 3424 set thread context of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

pid	process
4524	powershell.exe
4524	powershell.exe
3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
Token: SeDebugPrivilege	4524	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe

C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
"C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3424

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4524

C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
2⤵
PID:4780

C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
C:\Users\Admin\AppData\Local\Temp\0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
2⤵
PID:1792

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bkvpgdr3.h3b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1792-173-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-175-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-182-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-165-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-166-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-181-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-180-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-179-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-178-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-177-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-176-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-174-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-172-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-171-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-170-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-169-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-162-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-164-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-167-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-183-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1792-168-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3424-133-0x0000000000760000-0x0000000000810000-memory.dmp

Filesize
704KB

Download
memory/3424-135-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/3424-136-0x0000000006B80000-0x0000000006BA2000-memory.dmp

Filesize
136KB

Download
memory/3424-134-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/4524-155-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4524-154-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4524-151-0x0000000006460000-0x000000000647E000-memory.dmp

Filesize
120KB

Download
memory/4524-157-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4524-137-0x0000000004E40000-0x0000000004E76000-memory.dmp

Filesize
216KB

Download
memory/4524-153-0x0000000006970000-0x000000000698A000-memory.dmp

Filesize
104KB

Download
memory/4524-146-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/4524-152-0x0000000007AD0000-0x000000000814A000-memory.dmp

Filesize
6.5MB

Download
memory/4524-140-0x0000000005D70000-0x0000000005DD6000-memory.dmp

Filesize
408KB

Download
memory/4524-139-0x0000000005D00000-0x0000000005D66000-memory.dmp

Filesize
408KB

Download
memory/4524-138-0x00000000055A0000-0x0000000005BC8000-memory.dmp

Filesize
6.2MB

Download
memory/4524-156-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download

description	pid	process	target process
PID 3424 wrote to memory of 4524	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	powershell.exe
PID 3424 wrote to memory of 4524	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	powershell.exe
PID 3424 wrote to memory of 4524	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	powershell.exe
PID 3424 wrote to memory of 4780	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 4780	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 4780	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe
PID 3424 wrote to memory of 1792	3424	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe	0f27e5f647e28a535aa0ab9dde5c707150431f10c62d12f1e192ea02d698b3e4.exe