remcos | 445d12c6ebab2592a1630ad5777c3dfbba2b1397eca259e3e714687e8d1dd1b6

General

Target

PO850.exe
Size

1.3MB
MD5

a4337c13c84999f28c2a89eea377b552
SHA1

452b87fbb0c08267c24fee1e7aa9d83293086ebb
SHA256

445d12c6ebab2592a1630ad5777c3dfbba2b1397eca259e3e714687e8d1dd1b6
SHA512

917b6da32d0630f76f70189230dc0bf76138072c7ddc296382c1f3b0ebebcf37860fd328b825758e96f174f921b79887107c187ee2fe5922cb475f0757a4b758
SSDEEP

24576:Vtb20pkaCqT5TBWgNQ7afcl+1K7rDLc6Z7uRdhkW6Clt6A:GVg5tQ7afclj7rDxyREW6W5

Score

10^/10

remcos money discovery rat

Malware Config

Extracted

Family

remcos

Botnet

money

C2

79.110.49.250:4190

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-FU0Z08
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

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\selectedly.vbs	selectedly.exe

Executes dropped EXE 1 IoCs

pid	Process
916	selectedly.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0008000000023bfa-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 1900	916	selectedly.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	selectedly.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
916	selectedly.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 916	3092	PO850.exe	82
PID 3092 wrote to memory of 916	3092	PO850.exe	82
PID 3092 wrote to memory of 916	3092	PO850.exe	82
PID 916 wrote to memory of 1900	916	selectedly.exe	83
PID 916 wrote to memory of 1900	916	selectedly.exe	83
PID 916 wrote to memory of 1900	916	selectedly.exe	83
PID 916 wrote to memory of 1900	916	selectedly.exe	83

C:\Users\Admin\AppData\Local\Temp\PO850.exe
"C:\Users\Admin\AppData\Local\Temp\PO850.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\benting\selectedly.exe
  "C:\Users\Admin\AppData\Local\Temp\PO850.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:916
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\PO850.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1900

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:\Users\Admin\AppData\Local\benting\selectedly.exe

Filesize
1.3MB

MD5
a4337c13c84999f28c2a89eea377b552

SHA1
452b87fbb0c08267c24fee1e7aa9d83293086ebb

SHA256
445d12c6ebab2592a1630ad5777c3dfbba2b1397eca259e3e714687e8d1dd1b6

SHA512
917b6da32d0630f76f70189230dc0bf76138072c7ddc296382c1f3b0ebebcf37860fd328b825758e96f174f921b79887107c187ee2fe5922cb475f0757a4b758

Download Submit
memory/916-18-0x00000000015A0000-0x00000000019A0000-memory.dmp

Filesize
4.0MB

Download
memory/1900-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1900-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3092-6-0x0000000001140000-0x0000000001540000-memory.dmp

Filesize
4.0MB

Download

Analysis

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