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/3936-12-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3936-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2420-18-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3360-17-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3936-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2420-10-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3360-8-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3360-24-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2420-18-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2420-10-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3360-17-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3360-8-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3360-24-0x0000000000400000-0x0000000000478000-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-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 3360	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	86
PID 4928 set thread context of 2420	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	87
PID 4928 set thread context of 3936	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	88

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
3360	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3360	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3936	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3936	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3360	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
3360	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe
4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3936	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 3360	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	86
PID 4928 wrote to memory of 3360	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	86
PID 4928 wrote to memory of 3360	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	86
PID 4928 wrote to memory of 2420	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	87
PID 4928 wrote to memory of 2420	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	87
PID 4928 wrote to memory of 2420	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	87
PID 4928 wrote to memory of 3936	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	88
PID 4928 wrote to memory of 3936	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	88
PID 4928 wrote to memory of 3936	4928	173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe	88

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:4928
- 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\zsygkcbdidcgydmvdi"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3360
- 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\jmdrlvuxvlutarazutlir"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:2420
- 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\ugqkmnezjtmxkxwdddyjuumw"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3936

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\zsygkcbdidcgydmvdi

Filesize
4KB

MD5
79f35c7500a5cc739c1974804710441f

SHA1
24fdf1fa45049fc1a83925c45357bc3058bad060

SHA256
897101ed9da25ab0f10e8ad1aeb8dabc3282ccfdb6d3171dbac758117b8731f4

SHA512
03281e8abecff4e7d1f563596a4fd2513e016b7fbf011a455141460f9448d00b4a4666d2036cb448a8ac9a6feebeb51b366289ffa2ee5524a062fe8869aec61e

Download Submit
memory/2420-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2420-18-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2420-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2420-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3360-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3360-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3360-4-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3360-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3360-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3936-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3936-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3936-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3936-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3936-6-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4928-27-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4928-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4928-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4928-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4928-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4928-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4928-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

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