remcos | 7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d

General

Target

7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Size

483KB
MD5

701449e6a744d087200a07d612419806
SHA1

cbed3fab0f06a320eec78389b07b03c153a37a98
SHA256

7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d
SHA512

885523069499a470c5c374ba12551e6e422910e4f7a7e5bb77bf9ad4ed6e939fa79b079ea83d22229bdc69e3970162de54cbaac2a4ad9a02dc8a61612c15f5b6
SSDEEP

6144:wTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccr/aT4:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBNT4

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-2QT0LM
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 9 IoCs

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

resource	yara_rule
behavioral2/memory/2464-12-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2464-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2464-20-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1788-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3612-13-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1788-8-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3612-7-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1788-21-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3612-24-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/1788-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/1788-8-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/1788-21-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3612-13-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3612-7-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3612-24-0x0000000000400000-0x0000000000478000-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-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3772 set thread context of 3612	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 3772 set thread context of 1788	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 3772 set thread context of 2464	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.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	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3612	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
3612	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2464	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2464	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
3612	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
3612	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2464	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3772 wrote to memory of 3612	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 3772 wrote to memory of 3612	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 3772 wrote to memory of 3612	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 3772 wrote to memory of 1788	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 3772 wrote to memory of 1788	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 3772 wrote to memory of 1788	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 3772 wrote to memory of 2464	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84
PID 3772 wrote to memory of 2464	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84
PID 3772 wrote to memory of 2464	3772	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84

C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
"C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3772
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\qccxuccuxfptvkxsgcrmfz"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3612
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\awpqvunwtnhyyqlwpneoqmihu"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:1788
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\dyuiwnxphvzdiehigxzptrdyvllly"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2464

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
0e1aef458710033081d8ef02b6152e1d

SHA1
5f8c17f620b65241dd607fadefea88f836a3b2f1

SHA256
c70a6f55ec2316006aede55a220d4a02308a411700efb7a6e310c9edea39d5da

SHA512
d761d1c7588b28c3c71ff1706c7b4e2278845432f02848f47c4daed450d7322e4d783dc6bf2b334c4e24f2754c9a874e60838bb32bbf5729631640fb9e2374e4

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

Filesize
4KB

MD5
c0ab2847671ed5375328c5127a02cc72

SHA1
dc2bcb51562fb17e5c8787833bc0181d88a5b75e

SHA256
e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384

SHA512
0b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f

Download Submit
memory/1788-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1788-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1788-5-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1788-21-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1788-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2464-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2464-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2464-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2464-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2464-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3612-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3612-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3612-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3612-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3612-6-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3772-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3772-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3772-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3772-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3772-27-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3772-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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