remcos | f6d0fdcf620ebd3b483c6dd7e9bc7bea2f9acca8d34eb7b84ebaf457671fd758

General

Target
E V0149 - P0843437 KS + P0843438 MA,pdf.exe
Size 772KB
Sample211208-pll6jsacdr
SHA256 f6d0fdcf620ebd3b483c6dd7e9bc7bea2f9acca8d34eb7b84ebaf457671fd758
MD5 6c1386c56c3abc576ba1add269ae705d
SHA1 fc71dc902ea74fbd7c29de9d0f5e322f5fa61c37
SHA512 7c70d3888c71502406ac7ad5940d1438b250bb12d823999428138be0bcaf32ac1b7537855906e28ac8fedef7da4ada54eee6c62d0b97ea09bd9c732eb74ad330
MD5 SHA1 SHA512

Score

10^/10

remcos dimension persistence rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

DIMENSION

C2

mirroronthewall.hopto.org:6041

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-LHHZG6
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1156	PasswordOnWakeSettingFlyout.exe

Loads dropped DLL 1 IoCs

pid	Process
1156	PasswordOnWakeSettingFlyout.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\Lszkdxuq = "C:\\Users\\Admin\\quxdkzsL.url"	E V0149 - P0843437 KS + P0843438 MA,pdf.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2376	PING.EXE

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 3680	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	69
PID 2288 wrote to memory of 1608	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	70
PID 2288 wrote to memory of 1608	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	70
PID 2288 wrote to memory of 1608	2288	E V0149 - P0843437 KS + P0843438 MA,pdf.exe	70
PID 1608 wrote to memory of 2620	1608	cmd.exe	72
PID 1608 wrote to memory of 2620	1608	cmd.exe	72
PID 1608 wrote to memory of 2620	1608	cmd.exe	72
PID 2620 wrote to memory of 1156	2620	cmd.exe	74
PID 2620 wrote to memory of 1156	2620	cmd.exe	74
PID 2620 wrote to memory of 2376	2620	cmd.exe	75
PID 2620 wrote to memory of 2376	2620	cmd.exe	75
PID 2620 wrote to memory of 2376	2620	cmd.exe	75

C:\Users\Admin\AppData\Local\Temp\E V0149 - P0843437 KS + P0843438 MA,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\E V0149 - P0843437 KS + P0843438 MA,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:3680
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Lszkdxuqt.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Admin\LszkdxuqO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - C:\Windows \System32\PasswordOnWakeSettingFlyout.exe
      "C:\Windows \System32\PasswordOnWakeSettingFlyout.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      PID:1156
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 6
      4⤵
      Runs ping.exe
      PID:2376

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2288-118-0x0000000002B61000-0x0000000002B75000-memory.dmp

Download

memory/2288-119-0x0000000000570000-0x00000000006BA000-memory.dmp

Download

memory/3680-134-0x0000000003050000-0x0000000003051000-memory.dmp

Download

memory/3680-135-0x0000000002D20000-0x0000000002D21000-memory.dmp

Download

memory/3680-133-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

Download

memory/3680-136-0x0000000073D00000-0x0000000073D7C000-memory.dmp

Download

memory/3680-137-0x0000000000400000-0x0000000000479000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads