remcos | 6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05

General

Target

PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Size

7KB
MD5

2aa238c62bdf21d61a382de34650c887
SHA1

2e2bb363ca3d9af4b7ab6001e48ef1eca859b94d
SHA256

6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05
SHA512

ca540814923464076c0c0e558e3bd246cf29ad8877cf9a57df4f990f121834c90a70f9917bd1625a175be61e7c068afa17bcd2f034fcc273477f0aedb40a39bd
SSDEEP

96:HkzEkmmFXmT7mjXpKQPOGvMtOcDTmbDtEkIFBjQlrQ5bFnU:HqfEwXXPADT6zKWl0A

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

194.180.49.17:28282

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
rdfghfgjkgoighjc.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-PC1DJ2
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 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

PAYMENT CONFIRMATION COPY_ 529520419250297.exePAYMENT CONFIRMATION COPY_ 529520419250297.exerdfghfgjkgoighjc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	rdfghfgjkgoighjc.exe

Executes dropped EXE 2 IoCs

Processes:

rdfghfgjkgoighjc.exerdfghfgjkgoighjc.exe

pid process

2212 rdfghfgjkgoighjc.exe
4128 rdfghfgjkgoighjc.exe

pid	process
2212	rdfghfgjkgoighjc.exe
4128	rdfghfgjkgoighjc.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rdfghfgjkgoighjc.exePAYMENT CONFIRMATION COPY_ 529520419250297.exePAYMENT CONFIRMATION COPY_ 529520419250297.exerdfghfgjkgoighjc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	rdfghfgjkgoighjc.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	rdfghfgjkgoighjc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	rdfghfgjkgoighjc.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\	rdfghfgjkgoighjc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bsrdolf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ykiwtitgqvp\\Bsrdolf.exe\""	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\rdfghfgjkgoighjc.exe\""	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bsrdolf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ykiwtitgqvp\\Bsrdolf.exe\""	rdfghfgjkgoighjc.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

PAYMENT CONFIRMATION COPY_ 529520419250297.exerdfghfgjkgoighjc.exe

description	pid	process	target process
PID 1616 set thread context of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 2212 set thread context of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.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.exepowershell.exe

pid process

2972 powershell.exe
2972 powershell.exe
5100 powershell.exe
5100 powershell.exe

pid	process
2972	powershell.exe
2972	powershell.exe
5100	powershell.exe
5100	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

PAYMENT CONFIRMATION COPY_ 529520419250297.exepowershell.exerdfghfgjkgoighjc.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	2212	rdfghfgjkgoighjc.exe
Token: SeDebugPrivilege	5100	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rdfghfgjkgoighjc.exe

pid process

4128 rdfghfgjkgoighjc.exe

pid	process
4128	rdfghfgjkgoighjc.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

PAYMENT CONFIRMATION COPY_ 529520419250297.exePAYMENT CONFIRMATION COPY_ 529520419250297.exerdfghfgjkgoighjc.exe

description	pid	process	target process
PID 1616 wrote to memory of 2972	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	powershell.exe
PID 1616 wrote to memory of 2972	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	powershell.exe
PID 1616 wrote to memory of 2972	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	powershell.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 1616 wrote to memory of 2028	1616	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	PAYMENT CONFIRMATION COPY_ 529520419250297.exe
PID 2028 wrote to memory of 2212	2028	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	rdfghfgjkgoighjc.exe
PID 2028 wrote to memory of 2212	2028	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	rdfghfgjkgoighjc.exe
PID 2028 wrote to memory of 2212	2028	PAYMENT CONFIRMATION COPY_ 529520419250297.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 5100	2212	rdfghfgjkgoighjc.exe	powershell.exe
PID 2212 wrote to memory of 5100	2212	rdfghfgjkgoighjc.exe	powershell.exe
PID 2212 wrote to memory of 5100	2212	rdfghfgjkgoighjc.exe	powershell.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe
PID 2212 wrote to memory of 4128	2212	rdfghfgjkgoighjc.exe	rdfghfgjkgoighjc.exe

C:\Users\Admin\AppData\Local\Temp\PAYMENT CONFIRMATION COPY_ 529520419250297.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENT CONFIRMATION COPY_ 529520419250297.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616

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:2972

C:\Users\Admin\AppData\Local\Temp\PAYMENT CONFIRMATION COPY_ 529520419250297.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENT CONFIRMATION COPY_ 529520419250297.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2028

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
"C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5100

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:4128

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
2aa238c62bdf21d61a382de34650c887

SHA1
2e2bb363ca3d9af4b7ab6001e48ef1eca859b94d

SHA256
6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05

SHA512
ca540814923464076c0c0e558e3bd246cf29ad8877cf9a57df4f990f121834c90a70f9917bd1625a175be61e7c068afa17bcd2f034fcc273477f0aedb40a39bd

Download Submit
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
2aa238c62bdf21d61a382de34650c887

SHA1
2e2bb363ca3d9af4b7ab6001e48ef1eca859b94d

SHA256
6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05

SHA512
ca540814923464076c0c0e558e3bd246cf29ad8877cf9a57df4f990f121834c90a70f9917bd1625a175be61e7c068afa17bcd2f034fcc273477f0aedb40a39bd

Download Submit
C:\ProgramData\Remcos\rdfghfgjkgoighjc.exe
Filesize
7KB

MD5
2aa238c62bdf21d61a382de34650c887

SHA1
2e2bb363ca3d9af4b7ab6001e48ef1eca859b94d

SHA256
6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05

SHA512
ca540814923464076c0c0e558e3bd246cf29ad8877cf9a57df4f990f121834c90a70f9917bd1625a175be61e7c068afa17bcd2f034fcc273477f0aedb40a39bd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
1KB

MD5
4280e36a29fa31c01e4d8b2ba726a0d8

SHA1
c485c2c9ce0a99747b18d899b71dfa9a64dabe32

SHA256
e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

SHA512
494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Filesize
53KB

MD5
06ad34f9739c5159b4d92d702545bd49

SHA1
9152a0d4f153f3f40f7e606be75f81b582ee0c17

SHA256
474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

SHA512
c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
16KB

MD5
87c10d926c844be1937fbeff8c995ace

SHA1
353121f15db2b09ed075c18d33140f97d76382d8

SHA256
e51b734b37392d134a48d162a5f14c0fbfb36929adbece1d876dbf33fea359f5

SHA512
cf00f2ed5ca9f14411aa7e7f54210315ef2226847b79d9265a858253fb07f76f49234ceb92e54641d42395f8fb551070137f6cb60b8196a6a5f53b905316d9db

Download Submit
C:\Users\Admin\AppData\Roaming\Ykiwtitgqvp\Bsrdolf.exe
Filesize
7KB

MD5
2aa238c62bdf21d61a382de34650c887

SHA1
2e2bb363ca3d9af4b7ab6001e48ef1eca859b94d

SHA256
6a4ff99ad29aa40eddb5e509b7460556ab23f2dc1f08ce014dc32817128e6c05

SHA512
ca540814923464076c0c0e558e3bd246cf29ad8877cf9a57df4f990f121834c90a70f9917bd1625a175be61e7c068afa17bcd2f034fcc273477f0aedb40a39bd

Download Submit
memory/1616-132-0x0000000000240000-0x0000000000248000-memory.dmp

Filesize
32KB

Download
memory/1616-133-0x00000000061D0000-0x00000000061F2000-memory.dmp

Filesize
136KB

Download
memory/2028-148-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2028-142-0x0000000000000000-mapping.dmp

Download
memory/2028-143-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2028-144-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2028-145-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2212-146-0x0000000000000000-mapping.dmp

Download
memory/2972-141-0x0000000006300000-0x000000000631A000-memory.dmp

Filesize
104KB

Download
memory/2972-140-0x0000000007660000-0x0000000007CDA000-memory.dmp

Filesize
6.5MB

Download
memory/2972-139-0x0000000004BD0000-0x0000000004BEE000-memory.dmp

Filesize
120KB

Download
memory/2972-134-0x0000000000000000-mapping.dmp

Download
memory/2972-138-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/2972-137-0x0000000004FD0000-0x0000000005036000-memory.dmp

Filesize
408KB

Download
memory/2972-136-0x00000000051A0000-0x00000000057C8000-memory.dmp

Filesize
6.2MB

Download
memory/2972-135-0x0000000000EE0000-0x0000000000F16000-memory.dmp

Filesize
216KB

Download
memory/4128-158-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4128-159-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4128-155-0x0000000000000000-mapping.dmp

Download
memory/4128-160-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4128-161-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5100-150-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads