remcos | 552c5a019f7e7f260e599ccb6a3be509b0a62739547d0d5250288fbdf4569cf5

General

Target

17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
Size

481KB
MD5

1c7a20b7156251eeb2ae903cbfc204e4
SHA1

9164981354925ea9ef2f19db506d198d85bc529c
SHA256

552c5a019f7e7f260e599ccb6a3be509b0a62739547d0d5250288fbdf4569cf5
SHA512

dc0eecdcbc8ba25f9361ca9bae7e53da2e9ea64fec7bdc8946d8278d207dd2c052c89b3e8bb39f9a65e215ebe9b29a1209341d458e98044e67c400f688ffeb48
SSDEEP

12288:XuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSZ+DY:K09AfNIEYsunZvZ19Zes

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

newbeggin.duckdns.org:2431

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-8FCP5S
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 8 IoCs

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

resource	yara_rule
behavioral2/memory/3008-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/5072-17-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3008-16-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2372-15-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3008-11-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2372-9-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/5072-22-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2372-25-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/5072-17-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/5072-22-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2372-15-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2372-9-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2372-25-0x0000000000400000-0x0000000000478000-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-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4440 set thread context of 2372	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	92
PID 4440 set thread context of 5072	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	93
PID 4440 set thread context of 3008	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	94

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	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2372	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
2372	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
3008	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
3008	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
2372	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
2372	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 2372	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	92
PID 4440 wrote to memory of 2372	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	92
PID 4440 wrote to memory of 2372	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	92
PID 4440 wrote to memory of 5072	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	93
PID 4440 wrote to memory of 5072	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	93
PID 4440 wrote to memory of 5072	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	93
PID 4440 wrote to memory of 3008	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	94
PID 4440 wrote to memory of 3008	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	94
PID 4440 wrote to memory of 3008	4440	17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe	94

C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\xbcldc"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2372
- C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\idhddurfe"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\17327986255b9be8bc9d871d6e246d7270b6644e5b5c3b696cfd132458bc59c32794b51c09844.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\sxvwenbzasdwq"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3008

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:\Users\Admin\AppData\Local\Temp\xbcldc

Filesize
4KB

MD5
79f35c7500a5cc739c1974804710441f

SHA1
24fdf1fa45049fc1a83925c45357bc3058bad060

SHA256
897101ed9da25ab0f10e8ad1aeb8dabc3282ccfdb6d3171dbac758117b8731f4

SHA512
03281e8abecff4e7d1f563596a4fd2513e016b7fbf011a455141460f9448d00b4a4666d2036cb448a8ac9a6feebeb51b366289ffa2ee5524a062fe8869aec61e

Download Submit
memory/2372-4-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-15-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-9-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3008-6-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3008-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3008-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3008-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3008-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4440-28-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4440-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4440-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4440-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5072-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5072-22-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5072-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5072-17-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/5072-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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