remcos | d2a87b1b1a1106b874e949e49a55e7e68202eaa84062c270bbf62481bb769a45

General

Target

fd590a606d1d440d77d341a682c0e1e7.exe
Size

1.0MB
MD5

fd590a606d1d440d77d341a682c0e1e7
SHA1

3f9fedc607ba64b88b607d99ed4071b9d04f9589
SHA256

d2a87b1b1a1106b874e949e49a55e7e68202eaa84062c270bbf62481bb769a45
SHA512

b5ae2854414d2baffb33bee8c723eff60f67ead3dcc13705390c6bbd61482599cbc9cb9165a29ac4c7290a57e0c4af8f2b65a7e5e9cb0f553bf14ce5741deb3f
SSDEEP

24576:4zqwz4J8WFCIvIwxoKCWS2zzIy4zhnmCeNv7KCuCqsRG/:4z7zMLFCIKWS6zIXhnOOCTqsk

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

198.12.81.146:7643

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-5YTKJV
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 1868 set thread context of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28

System Location Discovery: System Language Discovery 1 TTPs 1 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	fd590a606d1d440d77d341a682c0e1e7.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2848	fd590a606d1d440d77d341a682c0e1e7.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28
PID 1868 wrote to memory of 2848	1868	fd590a606d1d440d77d341a682c0e1e7.exe	28

C:\Users\Admin\AppData\Local\Temp\fd590a606d1d440d77d341a682c0e1e7.exe
"C:\Users\Admin\AppData\Local\Temp\fd590a606d1d440d77d341a682c0e1e7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Local\Temp\fd590a606d1d440d77d341a682c0e1e7.exe
  "C:\Users\Admin\AppData\Local\Temp\fd590a606d1d440d77d341a682c0e1e7.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2848

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
9c680e1c27376af2ea05920ecc7f4c37

SHA1
fe3f116d88c9e34d629d63557c462167f03fffa2

SHA256
53389bea3798d1042d8727cd79ad4eb48cf2b6aee50aca4ce2b72c745474053c

SHA512
f7e8c78e1cb7c0359c629b596eacd25d3a81cebda2cb8fcae88783b9a2d752dbf3c7fadc45f9706d07aa5e27416954956e1df2394375589bcf2ea85f2eadd9a1

Download Submit
memory/1868-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1868-1-0x0000000000BD0000-0x0000000000CDC000-memory.dmp

Filesize
1.0MB

Download
memory/1868-2-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1868-3-0x00000000009A0000-0x00000000009BE000-memory.dmp

Filesize
120KB

Download
memory/1868-4-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1868-5-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1868-6-0x000000000A3C0000-0x000000000A482000-memory.dmp

Filesize
776KB

Download
memory/1868-30-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-17-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-10-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-24-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-13-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-15-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-11-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2848-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

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