remcos | 43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c

General

Target

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
Size

1.1MB
MD5

4e991fbca595be038bf07c2bec420e54
SHA1

7da7bef438d2a35ea39a59623b78d1c8871f2462
SHA256

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c
SHA512

b2ebcb9f58a019c3265d5e001897cb778444a5f8caa509fb3b14ee368cf553aeab27769453ca9164a86f12e2a531b68b96daf0d5df8dbcc9ee6d3027bd6d2c90
SSDEEP

24576:K1Cp6h1NhMue8erGEEdQqzGdGD3aCg9zTZCX7r3gps:BCRMP8erseqadd9xC3W

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

yayabeloo.duckdns.org:6847

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-VPA6N9
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2232	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31
PID 2084 wrote to memory of 2232	2084	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	31

C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
"C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
  "C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
2eaa37e0575f6af3a0cbfb3a5dc7212f

SHA1
0ee94c95b3de1e2850bc0f9b35dca6e9e3ed30c8

SHA256
8b92fae86b912de898eaea587b1c34596a6103177b6eb47f5bcd96f95e1180bb

SHA512
e0fcb461b80d16fde4c282573c65dcfd0cef71a3c00fe85314d9d8aa4e2cef17cdb8136deec3178348248d916265a498ea5a4789a9e3cd203ed48bac670ddcbb

Download Submit
memory/2084-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/2084-1-0x0000000000F40000-0x000000000106C000-memory.dmp

Filesize
1.2MB

Download
memory/2084-2-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-3-0x00000000009E0000-0x00000000009FC000-memory.dmp

Filesize
112KB

Download
memory/2084-4-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-5-0x0000000005F00000-0x0000000005FC2000-memory.dmp

Filesize
776KB

Download
memory/2084-28-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2232-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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