remcos | 2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45

General

Target

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe
Size

1.1MB
MD5

33bbd27a00b4160a844a7edf2efef84e
SHA1

c3f19d22898b690d4c98c59416c62ec6e54a39de
SHA256

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45
SHA512

d4628cdae15273dc0863afa06153d202d8a61ed8d0f9e213c47f029016b81cad7d2d4dc3c115aefbff9c9d0ba6d74e3aa89f09d5fd6226eaa597f0e0328415b7
SSDEEP

24576:b6G5oq6WlY5EQJbBCt598PkfzGwWPEXyqr:bPQrJChIP1q

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

myumysmeetr.ddns.net:2404

mysweeterbk.ddns.net:2404

meetre1ms.freeddns.org:2404

bbhmeetre1ms.freeddns.org:2404

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-TPT9X3
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Duchpovs = "C:\\Users\\Public\\Duchpovs.url"	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

2 drive.google.com
4 drive.google.com

flow	ioc
2	drive.google.com
4	drive.google.com

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\B1BC968BD4F49D622AA89A81F2150152A41D829C\Blob = 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	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	13	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

pid process

1660 2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

pid	process
1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe

description	pid	process	target process
PID 1660 wrote to memory of 2632	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	extrac32.exe
PID 1660 wrote to memory of 2632	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	extrac32.exe
PID 1660 wrote to memory of 2632	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	extrac32.exe
PID 1660 wrote to memory of 2632	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	extrac32.exe
PID 1660 wrote to memory of 2668	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	colorcpl.exe
PID 1660 wrote to memory of 2668	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	colorcpl.exe
PID 1660 wrote to memory of 2668	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	colorcpl.exe
PID 1660 wrote to memory of 2668	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	colorcpl.exe
PID 1660 wrote to memory of 2668	1660	2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe	colorcpl.exe

C:\Users\Admin\AppData\Local\Temp\2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe
"C:\Users\Admin\AppData\Local\Temp\2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\extrac32.exe
  C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\2c49f89d2a461bb32f9c50f8b37fb53b0f86294d4f03fb3e08588e979329fb45.exe C:\\Users\\Public\\Libraries\\Duchpovs.PIF
  2⤵
  PID:2632
- C:\Windows\SysWOW64\colorcpl.exe
  C:\Windows\System32\colorcpl.exe
  2⤵
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
146B

MD5
cc9c93e869c44f439ec87f53a0e27c38

SHA1
5a8b5103841a2cbf8fa416233f2579f87ff7b189

SHA256
b50d78da799f4710a0bd4f6590970f92ba9351b1defb4d2f41d9dcd7c925d68d

SHA512
5d92eb92c1fcc1db1cabefde81e2fc58c91a65b81c6194f1d6b13d6c07f88a6506d256666c4c6b488b7ec03774c51e032d3e38a1ae4f32bc54876e28268f8dfc

Download Submit
memory/1660-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1660-1-0x0000000000400000-0x000000000051D000-memory.dmp

Filesize
1.1MB

Download
memory/2668-28-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-33-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-29-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-22-0x0000000003200000-0x0000000004200000-memory.dmp

Filesize
16.0MB

Download
memory/2668-30-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-31-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-32-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-27-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-40-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-24-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-42-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-43-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-50-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-58-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download
memory/2668-59-0x0000000003010000-0x0000000003092000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads