remcos | 2f0643ad28f12f80974d3fd6d0c71d9afcc770837fe50bd27eea398f7946ff92

General

Target

SC_TR126089907.exe
Size

1.1MB
MD5

d8f15666d25a32702106b56dfd962cd6
SHA1

b680052ba6f10f87595df8e6f06065546109c9e2
SHA256

b0724a50f077a8652bbe0972e059aadde07ea247057e239b8b28ed720a083ae8
SHA512

0bda9df65f34d05ff4448783bd0c747631621bdea98d716f3b3fb77f6b05784efd4aa67cf55e60e966375e2590df7bb30f4651865345f0995f50fcad31458f8b
SSDEEP

24576:e2xjcLCnYnIXrbmcfjyTinYxorzPMFZYXX+Wjj8GLgv:lZnYIXrbFm6YSzPwYXX+G4GL

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 4716 set thread context of 1732	4716	SC_TR126089907.exe	100

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	SC_TR126089907.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SC_TR126089907.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4716	SC_TR126089907.exe
4716	SC_TR126089907.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	SC_TR126089907.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1732	SC_TR126089907.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 3628	4716	SC_TR126089907.exe	99
PID 4716 wrote to memory of 3628	4716	SC_TR126089907.exe	99
PID 4716 wrote to memory of 3628	4716	SC_TR126089907.exe	99
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100
PID 4716 wrote to memory of 1732	4716	SC_TR126089907.exe	100

C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe
"C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe
  "C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe"
  2⤵
  PID:3628
- C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe
  "C:\Users\Admin\AppData\Local\Temp\SC_TR126089907.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1732

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
9ecf0701cc20cda00a2e377e6e31bd8f

SHA1
15d5aa45a7bb1d5077a722162269ce1e737dd182

SHA256
41ea858c8bac9de0ae96c3727ae3621bce59fcf1a4dcd32d9fd7d762198ed2a7

SHA512
a1a1d5e9928719f9884cd1eaeccedb2ed7d9169e60adee039d5956214fe98831b4edb28c1155c262b805ff18895355d47b56eca8b8480b648f72efcc75407a03

Download Submit
memory/1732-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1732-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4716-2-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/4716-3-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/4716-10-0x0000000008290000-0x0000000008352000-memory.dmp

Filesize
776KB

Download
memory/4716-20-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/4716-9-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-1-0x0000000000710000-0x000000000082A000-memory.dmp

Filesize
1.1MB

Download
memory/4716-8-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/4716-7-0x00000000056E0000-0x00000000056F8000-memory.dmp

Filesize
96KB

Download
memory/4716-6-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4716-5-0x00000000054B0000-0x000000000554C000-memory.dmp

Filesize
624KB

Download
memory/4716-4-0x0000000005240000-0x000000000524A000-memory.dmp

Filesize
40KB

Download

Analysis

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