remcos | e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5

General

Target

e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
Size

481KB
MD5

575d16384315352aa0a0b0eab3a62b6c
SHA1

2bd99b62a965febf54c0e72a1afee93c12f135b6
SHA256

e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5
SHA512

5ae0f3b0d1fb8435fce9baf5d95d7ccaa4e3af383db52dacbd3ba7328bca386508d2b7dbd65fd42b938004c6f1213e75c712f02ce06eb50c71b24bf35e40c5d4
SSDEEP

12288:VuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSq+DY:409AfNIEYsunZvZ19ZBs

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.26:3678

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-MKYDDH
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 10 IoCs

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

resource	yara_rule
behavioral2/memory/1936-10-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2724-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3256-21-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2724-20-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3256-11-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3256-9-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1936-8-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3256-7-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2724-25-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1936-27-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 4 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3256-21-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3256-11-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3256-9-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3256-7-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1936-10-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1936-8-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1936-27-0x0000000000400000-0x0000000000478000-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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1980 set thread context of 1936	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	83
PID 1980 set thread context of 3256	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	84
PID 1980 set thread context of 2724	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	85

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	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1936	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
1936	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
2724	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
2724	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
1936	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
1936	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1936	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	83
PID 1980 wrote to memory of 1936	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	83
PID 1980 wrote to memory of 1936	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	83
PID 1980 wrote to memory of 3256	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	84
PID 1980 wrote to memory of 3256	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	84
PID 1980 wrote to memory of 3256	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	84
PID 1980 wrote to memory of 2724	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	85
PID 1980 wrote to memory of 2724	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	85
PID 1980 wrote to memory of 2724	1980	e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe	85

C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
"C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
  C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe /stext "C:\Users\Admin\AppData\Local\Temp\pdmbinpesohshaigismzchejtzjikhdamc"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1936
- C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
  C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe /stext "C:\Users\Admin\AppData\Local\Temp\zyruiga"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:3256
- C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe
  C:\Users\Admin\AppData\Local\Temp\e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5.exe /stext "C:\Users\Admin\AppData\Local\Temp\jawmjylztm"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724

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
893ba8a1ce14e20eb208a777c272d92b

SHA1
6173faf96e4b14ee9b5a408ba9ffde25f90d7944

SHA256
4f5eba9d6f332fc48bc8e7434f94f9d9f65d0fc6e050e3366eda89d0d51fe8f7

SHA512
148303a3b446fd25cb586a66a84a1109d18da81058c447de729ea9e049f840a043242863d2a29e82c2aab8a64bd62437cb6589a4cb241938735652f569dfc3bf

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

Filesize
4KB

MD5
16dfb23eaa7972c59c36fcbc0946093b

SHA1
1e9e3ff83a05131575f67e202d352709205f20f8

SHA256
36c49c94327c8cadcad4c0d2b3a8f5162fc7bb86624923484476c5f7b960bc4c

SHA512
a8b38b5e7bf886b78c5c7f01234b44647a252d4dfbcc06c99b863f8e160e3cfc151b2a83b8b49e09d13e8547419467da4bffbb8dee5fc6740032eb7c839d89dc

Download Submit
memory/1936-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1936-10-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1936-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1936-5-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1936-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1980-34-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1980-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1980-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1980-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1980-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1980-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1980-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2724-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2724-25-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2724-23-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/2724-17-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2724-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2724-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3256-21-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3256-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3256-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3256-9-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3256-11-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3256-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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