remcos | 3ba9e82575262067725feda9cefac9a6a6350ead5037ae9d85c398a0ecf6c6eb

General

Target

見積のリクエスト：RFQ-2022080902401220JP.exe
Size

11KB
MD5

b904f6a4b02be56ab504a10cbf6a5af1
SHA1

679163ec665252c72dd90b8c198cfad8c964cde2
SHA256

b2cfbcebd445e279de69ffa4169f678dda459b3ef194070a7ea3fd1ecf82f40e
SHA512

3ea3a4c17d048e55feeb9f14b6ea6557040e7e1acb08a8036f0c7b2dc06551e06a7e32d82457259da853bdcda26e30b2ba2dda53a056fdcfa4ac707aa5965d69

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

obologs.work.gd:4044

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-5Y5EWD
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:

見積のリクエスト：RFQ-2022080902401220JP.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	見積のリクエスト：RFQ-2022080902401220JP.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

見積のリクエスト：RFQ-2022080902401220JP.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hamczwmly = "\"C:\\Users\\Admin\\AppData\\Roaming\\Cyoca\\Hamczwmly.exe\""	見積のリクエスト：RFQ-2022080902401220JP.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

見積のリクエスト：RFQ-2022080902401220JP.exe

description pid process target process

PID 1532 set thread context of 2060 1532 見積のリクエスト：RFQ-2022080902401220JP.exe aspnet_compiler.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1532 set thread context of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe見積のリクエスト：RFQ-2022080902401220JP.exe

pid	process
2456	powershell.exe
2456	powershell.exe
1532	見積のリクエスト：RFQ-2022080902401220JP.exe
1532	見積のリクエスト：RFQ-2022080902401220JP.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

見積のリクエスト：RFQ-2022080902401220JP.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1532 見積のリクエスト：RFQ-2022080902401220JP.exe
Token: SeDebugPrivilege 2456 powershell.exe

description	pid	process
Token: SeDebugPrivilege	1532	見積のリクエスト：RFQ-2022080902401220JP.exe
Token: SeDebugPrivilege	2456	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

見積のリクエスト：RFQ-2022080902401220JP.exe

description	pid	process	target process
PID 1532 wrote to memory of 2456	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	powershell.exe
PID 1532 wrote to memory of 2456	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	powershell.exe
PID 1532 wrote to memory of 2456	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	powershell.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe
PID 1532 wrote to memory of 2060	1532	見積のリクエスト：RFQ-2022080902401220JP.exe	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\見積のリクエスト：RFQ-2022080902401220JP.exe
"C:\Users\Admin\AppData\Local\Temp\見積のリクエスト：RFQ-2022080902401220JP.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:1532

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2456

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
2⤵
PID:2060

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

memory/1532-131-0x0000000006BD0000-0x0000000006BF2000-memory.dmp

Filesize
136KB

Download
memory/1532-130-0x0000000000730000-0x0000000000738000-memory.dmp

Filesize
32KB

Download
memory/2060-140-0x0000000000000000-mapping.dmp

Download
memory/2060-145-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2060-144-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2060-143-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2060-142-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2060-141-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2456-134-0x0000000005700000-0x0000000005D28000-memory.dmp

Filesize
6.2MB

Download
memory/2456-139-0x00000000069D0000-0x00000000069EA000-memory.dmp

Filesize
104KB

Download
memory/2456-138-0x0000000007B30000-0x00000000081AA000-memory.dmp

Filesize
6.5MB

Download
memory/2456-137-0x00000000064D0000-0x00000000064EE000-memory.dmp

Filesize
120KB

Download
memory/2456-136-0x0000000005E50000-0x0000000005EB6000-memory.dmp

Filesize
408KB

Download
memory/2456-135-0x0000000005D30000-0x0000000005D96000-memory.dmp

Filesize
408KB

Download
memory/2456-133-0x0000000004F00000-0x0000000004F36000-memory.dmp

Filesize
216KB

Download
memory/2456-132-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads