remcos | 594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63

General

Target

594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
Size

483KB
MD5

c9148bef07805f3952a23a0bcdb025b9
SHA1

19dc64ef6207f4d29d02004f7919c0aa9b6df8ee
SHA256

594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63
SHA512

c323586276d912dc7ca5cd7ed901a02952fae648239596b58272259cc27199fcca2d0e4c7713d0443c2ee7efe3ba5b9eb37ba44d8087e35e5e5d0cef4dcd80ed
SSDEEP

6144:QTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZXAXkcrHT4:QTlrYw1RUh3NFn+N5WfIQIjbs/ZXkT4

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

ramcxx.duckdns.org:50312

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-M3P7YT
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

Detected Nirsoft tools 7 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/1924-12-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4268-21-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1924-19-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1924-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4992-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4992-11-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4268-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4992-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4992-11-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4268-21-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4268-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1736 set thread context of 4268	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	82
PID 1736 set thread context of 4992	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	83
PID 1736 set thread context of 1924	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1924	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
1924	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
4268	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
4268	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
4268	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
4268	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 4268	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	82
PID 1736 wrote to memory of 4268	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	82
PID 1736 wrote to memory of 4268	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	82
PID 1736 wrote to memory of 4992	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	83
PID 1736 wrote to memory of 4992	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	83
PID 1736 wrote to memory of 4992	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	83
PID 1736 wrote to memory of 1924	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	84
PID 1736 wrote to memory of 1924	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	84
PID 1736 wrote to memory of 1924	1736	594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe	84

C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
"C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
  C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe /stext "C:\Users\Admin\AppData\Local\Temp\iwezksbyrlvgrsroacvjswesygcrr"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4268
- C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
  C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe /stext "C:\Users\Admin\AppData\Local\Temp\tyjrkcmaftnltgfssnilvbqahvlsksxw"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4992
- C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe
  C:\Users\Admin\AppData\Local\Temp\594953ed201ce315eb73865c1bd5c0732fc5fb42091c71d777f9080b74138d63.exe /stext "C:\Users\Admin\AppData\Local\Temp\vtpk"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
ee08b6a9c194e46c999611bb84d09af3

SHA1
c4d3ae0af00a84e3838f0990bfb29a19342e3e8f

SHA256
f3d8e254df5a591cac8ca9b4a1009c6a5e965b1db5b5db2924d5acc92cd82d00

SHA512
fef620a26f25eab7627b4773fced71f0b5fbe67fd0c049f8d593354dd9349d758d324877871be7f72b90bc55a0233a634cd34dd981a8958d3aba7e36ad261ba1

Download Submit
C:\Users\Admin\AppData\Local\Temp\iwezksbyrlvgrsroacvjswesygcrr

Filesize
4KB

MD5
8b8277c8f03c24d1f290dbe476e961d2

SHA1
2e13baf3a4b708277d550dc3dd1e0f99b131f78e

SHA256
9af6881f6dbffba028a7a977f4c0a43c764f840332986993ad66de7b816c2f9e

SHA512
7367a0236cd0d6cd731caf1ba1f4ea8f851ea1018a9c6b49db6e9d13b2aaba92767774da9169481918e4287021ff5c3a58c3143eaa5e7fe9fa88383208615948

Download Submit
memory/1736-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1736-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1736-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1736-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1736-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1736-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1736-29-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1924-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1924-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1924-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1924-19-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1924-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4268-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4268-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4268-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4268-21-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4268-5-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4992-11-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4992-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4992-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4992-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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