remcos | c2cd50d9cac1f12b4e587c2d2529831ad80c9d2085ce1c0255a490d6d60f614b

General

Target

1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
Size

481KB
MD5

20635c652cba0c68e779bf1b04a4e94b
SHA1

def6352192e1316df694f6bae21b27e6199680c2
SHA256

c2cd50d9cac1f12b4e587c2d2529831ad80c9d2085ce1c0255a490d6d60f614b
SHA512

3211e5ec7b81ba4d44867bb9f45bfb6767fd792b7b6c9867a35c599e6d4ad2962ef244b9ac9250f25e0dbbc1928a5f3fa36cd80ffc1a8af65cc39f1eeb9370bb
SSDEEP

12288:LuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSo+DY:O09AfNIEYsunZvZ19ZTs

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

shlobo.duckdns.org:9687

shlobo.duckdns.org:9374

shlobo.duckdns.org:8764

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-U2TQ1C
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
Remcos family
remcos

Detected Nirsoft tools 6 IoCs

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

resource	yara_rule
behavioral2/memory/4740-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1772-19-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4740-18-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1772-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/756-9-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/756-25-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4740-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4740-18-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/756-9-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/756-25-0x0000000000400000-0x0000000000478000-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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4292 set thread context of 756	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	87
PID 4292 set thread context of 4740	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	88
PID 4292 set thread context of 1772	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	89

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	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
756	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
756	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
1772	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
1772	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
756	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
756	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 756	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	87
PID 4292 wrote to memory of 756	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	87
PID 4292 wrote to memory of 756	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	87
PID 4292 wrote to memory of 4740	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	88
PID 4292 wrote to memory of 4740	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	88
PID 4292 wrote to memory of 4740	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	88
PID 4292 wrote to memory of 1772	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	89
PID 4292 wrote to memory of 1772	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	89
PID 4292 wrote to memory of 1772	4292	1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe	89

C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\uicvcyquqpfujygxaogmjshevsquj"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:756
- C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\ecifdqbwexxzleubjytgmfcnwgidkwol"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4740
- C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1731343866c2de3056a60ef2333b3e4532593a69f279ecfa2002460801978b2e618aaa77bc130.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\heny"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1772

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
a696c9656f7219295eadf856cc08c0c3

SHA1
807876a15d1b936b942052bdb6f143cf1b7a8738

SHA256
9662ea7b2c672efe5ffddb3d1e2c73accdabb403f657bf1fd8830187c547ce76

SHA512
0f0369ef36bcf37db2c62c79b236c9685556a7f89ac74405329b2bc57d21aeeea6971361bea2972212f7146540de6e624e878e80b9505cd28574016f9e391a57

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

Filesize
4KB

MD5
17eece3240d08aa4811cf1007cfe2585

SHA1
6c10329f61455d1c96e041b6f89ee6260af3bd0f

SHA256
7cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903

SHA512
a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370

Download Submit
memory/756-9-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/756-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/756-6-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/756-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/756-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1772-20-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/1772-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-19-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4292-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4292-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-28-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4740-18-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4740-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4740-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4740-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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