remcos | c24d9f1eea99dcbd0e97fef8e6c7b9c52ec641280880803e419a9ef953de66eb

General

Target

test.exe
Size

481KB
MD5

d9b9edd0788052df0c3c5767d6da2683
SHA1

e617350a65b2110f948d2a553498ed06bccbe385
SHA256

c24d9f1eea99dcbd0e97fef8e6c7b9c52ec641280880803e419a9ef953de66eb
SHA512

95e5146082fccd764f3090d8363c35c0d6b43b946e7c73a96ed1079fc964b36c6c5198fe329aaded35f637182e003d168513fd7abd82cdd24168f591a9fa75e9
SSDEEP

12288:buD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSI+DY:e09AfNIEYsunZvZ19Zbs

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.ip.gl.ply.gg:24321

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-YVR15V
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

Deletes itself 1 IoCs

Processes:

WScript.exe

pid	Process
4848	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

test.exe

description	pid	Process	procid_target
PID 804 set thread context of 568	804	test.exe	81

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

Processes:

test.exeiexplore.exeWScript.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

Processes:

iexplore.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1263212995-3575756360-1418101905-1000_Classes\Local Settings	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

test.exe

pid	Process
804	test.exe
804	test.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

test.exe

pid	Process
804	test.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

test.exeiexplore.exe

description	pid	Process	procid_target
PID 804 wrote to memory of 568	804	test.exe	81
PID 804 wrote to memory of 568	804	test.exe	81
PID 804 wrote to memory of 568	804	test.exe	81
PID 804 wrote to memory of 568	804	test.exe	81
PID 568 wrote to memory of 4848	568	iexplore.exe	90
PID 568 wrote to memory of 4848	568	iexplore.exe	90
PID 568 wrote to memory of 4848	568	iexplore.exe	90

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:804
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\litqbzehrwcpolnxbdaulwohm.vbs"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:4848

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\litqbzehrwcpolnxbdaulwohm.vbs

Filesize
488B

MD5
794c0260402b008b982625708a9f953b

SHA1
e3481d118763daa784eeaed1708507ceede93b0f

SHA256
ebd2bbc566fa89b655e09ea4877bc13ba30f0f4cfb134a647ccf7a909efb9ce0

SHA512
ba3558fce45f9f0e6942789e08e6d14628f7abbb08248294850db707cc8b1cb84befcd7167c2de41b1b4584bd9060be1b95798eb49c18930ef87381c18ce04ac

Download Submit
memory/568-12-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-3-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-14-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-15-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-5-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-6-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-7-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-8-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-9-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-10-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-11-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-0-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-33-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-2-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-4-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-16-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-17-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-20-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-21-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-22-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-23-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-24-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-25-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-26-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-1-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download
memory/568-13-0x0000000000B90000-0x0000000000C0F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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