remcos | 349b0a51336973033d8bf552d20bab1a69fe0f89c3c6337ea63146ff67e22232

General

Target

173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
Size

482KB
MD5

6acc74966a02fca1bb61eb3cb1cafe56
SHA1

f59eb048045d669b1ca78299eaac93ca7f8f46e1
SHA256

349b0a51336973033d8bf552d20bab1a69fe0f89c3c6337ea63146ff67e22232
SHA512

29c3e50b1352816aff1be560de27ebe90c234bf62f61866b219616af218eb2233a68ab412c252ac493a160a40c2e2ec3031d2b4797e99bb995dd5ed8ac9ce60b
SSDEEP

12288:x13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQrRS:jak/mBXTV/R0nEF76gFZW

Score

10^/10

remcos zynova collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

zynova

C2

newbigupdateforme.duckdns.org:14646

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-ID1P7W
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/2368-11-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1536-16-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1536-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4852-10-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4852-8-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2368-7-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4852-13-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2368-25-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4852-10-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4852-8-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4852-13-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2368-11-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2368-7-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2368-25-0x0000000000400000-0x0000000000478000-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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3024 set thread context of 2368	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	82
PID 3024 set thread context of 4852	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	83
PID 3024 set thread context of 1536	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.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	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2368	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
2368	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
1536	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
1536	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
2368	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
2368	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1536	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2368	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	82
PID 3024 wrote to memory of 2368	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	82
PID 3024 wrote to memory of 2368	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	82
PID 3024 wrote to memory of 4852	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	83
PID 3024 wrote to memory of 4852	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	83
PID 3024 wrote to memory of 4852	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	83
PID 3024 wrote to memory of 1536	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	84
PID 3024 wrote to memory of 1536	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	84
PID 3024 wrote to memory of 1536	3024	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	84

C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\nwmgkzkrqdqbeyzqn"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2368
- C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\xyzrlsvteliggencentbj"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\itfjmkgmrtatqkjgnyfcuvvi"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1536

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\nwmgkzkrqdqbeyzqn

Filesize
4KB

MD5
7aca43b2800ceb18b3ed2326532545de

SHA1
d4cf207ef85bd749d59c1cb27a09c167ee21523a

SHA256
3d9f8622d97587fd84d3d0560a50ab38e5f894fe4b5bcaa34279643fdaaeb480

SHA512
0e002e6b8d965c227d9b1aa7c0251619c787ec7717e59667e756e5815e3666a955ea397eb148a1ed6bb7d8045727e4efa656a103f14bc70a03b03f0c91283c2f

Download Submit
memory/1536-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1536-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1536-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1536-21-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/1536-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2368-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-5-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2368-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3024-28-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3024-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3024-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3024-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3024-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4852-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4852-13-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4852-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4852-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4852-9-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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