remcos | 105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8

General

Target

105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
Size

482KB
MD5

e5f62262b9f4ee67ffb7c15ebe428a89
SHA1

b037adae7507ab9103ca5d30d62302c973352d6f
SHA256

105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8
SHA512

5e6508a0b6ebf3633cace9b084a5bac98f77021564b62a503e9f22b4e6debfd7f0fb653150b96fd7e39a04c59fc3ef33e9bfebef4882a95cf5acca3e78c1587a
SSDEEP

6144:7Tz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZmAX4crKT4:7TlrYw1RUh3NFn+N5WfIQIjbs/ZmBT4

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

stinosa.duckdns.org:2404

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-XF3AOC
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
true
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Detected Nirsoft tools 7 IoCs

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

resource	yara_rule
behavioral2/memory/4488-17-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1700-29-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1700-24-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4488-15-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3368-19-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3368-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4488-32-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3368-19-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3368-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4488-17-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4488-15-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4488-32-0x0000000000400000-0x0000000000478000-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-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 4488	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	90
PID 2700 set thread context of 3368	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	91
PID 2700 set thread context of 1700	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	92

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	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4488	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
4488	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
1700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
1700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
4488	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
4488	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 4488	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	90
PID 2700 wrote to memory of 4488	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	90
PID 2700 wrote to memory of 4488	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	90
PID 2700 wrote to memory of 3368	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	91
PID 2700 wrote to memory of 3368	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	91
PID 2700 wrote to memory of 3368	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	91
PID 2700 wrote to memory of 1700	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	92
PID 2700 wrote to memory of 1700	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	92
PID 2700 wrote to memory of 1700	2700	105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe	92

C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
"C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
  C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe /stext "C:\Users\Admin\AppData\Local\Temp\vhrbkzdzccxkekaakqxohkem"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4488
- C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
  C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe /stext "C:\Users\Admin\AppData\Local\Temp\gjwllrotykppoqwebbkpspyvdoyq"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:3368
- C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe
  C:\Users\Admin\AppData\Local\Temp\105d2d63ad642a68e636c975bac2b5b60cd76ecb684d6c4a85fa6562d48f0de8.exe /stext "C:\Users\Admin\AppData\Local\Temp\iejemkzvmsicqekikmxrvbtmlvqrcze"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1700

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
9ced0970625f0882e2c36c70bd8a497c

SHA1
15f9ce7762b89ab6195b0974ec120a1048298358

SHA256
7d96919569b5c6e0615da9aca78597066e277d2d4ee5ced4c2ab19c02d5c1ca4

SHA512
f0b3913e9a443f73748d99cd71be6b5545a3830fa232bba9515647d14c6e495e5d93178733ef4e51551f36813a12a544691369d170411d04681042f1f123511b

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

Filesize
4KB

MD5
8b8277c8f03c24d1f290dbe476e961d2

SHA1
2e13baf3a4b708277d550dc3dd1e0f99b131f78e

SHA256
9af6881f6dbffba028a7a977f4c0a43c764f840332986993ad66de7b816c2f9e

SHA512
7367a0236cd0d6cd731caf1ba1f4ea8f851ea1018a9c6b49db6e9d13b2aaba92767774da9169481918e4287021ff5c3a58c3143eaa5e7fe9fa88383208615948

Download Submit
memory/1700-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1700-20-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1700-29-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1700-24-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2700-35-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2700-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2700-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2700-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2700-38-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2700-39-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2700-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3368-16-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3368-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3368-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3368-19-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4488-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4488-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4488-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4488-15-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4488-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

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