remcos | 15ec3d5590f26ed878b51e2905110bc7c8cd702089877d35e8646aa3463c9f92

General

Target

POS Statements for Date - _20-07-2020.exe
Size

661KB
MD5

7e2ba2eee843c4f4986523e38f8dd057
SHA1

867e97338af0de914aa6b3bef902e610c1a4411b
SHA256

eadead9719ea252ca71c8b1a9f08bdb61f86097565303c8dc889f22691801d66
SHA512

d54090957ca6e2bdff9e1d37f8b70640bffa490906a6eface76a7d3eb5a5ecafb032b9bca89f2e4d053672f52f7277528ff498b78045da83532defb700626e6e
SSDEEP

12288:LpxEDrQY5EvoFzhlmTS1i4jkkg52CKRC8fZ9GmFNesSFX/Bkl62:da8voVOIObYfZoUKFZs62

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

185.244.30.18:6642

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
chrome.exe
copy_folder
chrome
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_cstgllymbjwflcg
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Executes dropped EXE 2 IoCs

pid	Process
1520	chrome.exe
592	chrome.exe

Loads dropped DLL 3 IoCs

pid	Process
1728	cmd.exe
1728	cmd.exe
1520	chrome.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome\\chrome.exe\""	POS Statements for Date - _20-07-2020.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome\\chrome.exe\""	chrome.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2524	2496	POS Statements for Date - _20-07-2020.exe	30
PID 1520 set thread context of 592	1520	chrome.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	POS Statements for Date - _20-07-2020.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	POS Statements for Date - _20-07-2020.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chrome.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2224	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2224	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2496	POS Statements for Date - _20-07-2020.exe
1520	chrome.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2496	POS Statements for Date - _20-07-2020.exe
1520	chrome.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
592	chrome.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2524	2496	POS Statements for Date - _20-07-2020.exe	30
PID 2496 wrote to memory of 2524	2496	POS Statements for Date - _20-07-2020.exe	30
PID 2496 wrote to memory of 2524	2496	POS Statements for Date - _20-07-2020.exe	30
PID 2496 wrote to memory of 2524	2496	POS Statements for Date - _20-07-2020.exe	30
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 2524 wrote to memory of 1728	2524	POS Statements for Date - _20-07-2020.exe	31
PID 1728 wrote to memory of 2224	1728	cmd.exe	33
PID 1728 wrote to memory of 2224	1728	cmd.exe	33
PID 1728 wrote to memory of 2224	1728	cmd.exe	33
PID 1728 wrote to memory of 2224	1728	cmd.exe	33
PID 1728 wrote to memory of 1520	1728	cmd.exe	34
PID 1728 wrote to memory of 1520	1728	cmd.exe	34
PID 1728 wrote to memory of 1520	1728	cmd.exe	34
PID 1728 wrote to memory of 1520	1728	cmd.exe	34
PID 1520 wrote to memory of 592	1520	chrome.exe	35
PID 1520 wrote to memory of 592	1520	chrome.exe	35
PID 1520 wrote to memory of 592	1520	chrome.exe	35
PID 1520 wrote to memory of 592	1520	chrome.exe	35

C:\Users\Admin\AppData\Local\Temp\POS Statements for Date - _20-07-2020.exe
"C:\Users\Admin\AppData\Local\Temp\POS Statements for Date - _20-07-2020.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\POS Statements for Date - _20-07-2020.exe
  "C:\Users\Admin\AppData\Local\Temp\POS Statements for Date - _20-07-2020.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1728
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2224
  - - C:\Users\Admin\AppData\Roaming\chrome\chrome.exe
      "C:\Users\Admin\AppData\Roaming\chrome\chrome.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1520
    - - C:\Users\Admin\AppData\Roaming\chrome\chrome.exe
        
        "C:\Users\Admin\AppData\Roaming\chrome\chrome.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:592

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

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat

Filesize
99B

MD5
3387ce4978140262e540e600e8aea9a9

SHA1
0a1abe65d8fd1421abc28b999a2d98ddfc69ced7

SHA256
59d44efc80d8b692d227cac26c67e5cba5ebf6a5fb07419624e001f0e88ebb44

SHA512
1bac216e779f2b6a1c561f60fcaae6e08cc03ae70136f9287dacab2e43568631e301ba700d62c60f6e615a80b1df580a5ec6491dfa55bded1db3a7b40f016bb5

Download Submit
\Users\Admin\AppData\Roaming\chrome\chrome.exe

Filesize
661KB

MD5
7e2ba2eee843c4f4986523e38f8dd057

SHA1
867e97338af0de914aa6b3bef902e610c1a4411b

SHA256
eadead9719ea252ca71c8b1a9f08bdb61f86097565303c8dc889f22691801d66

SHA512
d54090957ca6e2bdff9e1d37f8b70640bffa490906a6eface76a7d3eb5a5ecafb032b9bca89f2e4d053672f52f7277528ff498b78045da83532defb700626e6e

Download Submit
memory/592-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/592-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1520-27-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2496-0-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2496-2-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/2496-1-0x000000000046F000-0x0000000000479000-memory.dmp

Filesize
40KB

Download
memory/2524-9-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2524-18-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2524-6-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2524-3-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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