remcos | f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f

General

Target

f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
Size

990KB
MD5

2108fe4bc36c181c43d01825b56d8349
SHA1

274e3b1be233129a95658fe508706c0ebc4114a5
SHA256

f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f
SHA512

955aa8cb40efda2b44dc3a84a849c7941f20d801abc5da35c020038603ca6718de826aaf93dcdd958a5ce1808df9b25378f72ecb39b9d0f495771b2f773fa96b
SSDEEP

24576:M1zGUxjPe4rOMAsZXQsjoMCgkVbjw1292uP3:CL5e4CMAYXiMCFVbjw49bP

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Adobe.exe
copy_folder
Adobe
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Adobe_Nov-3XE9WN
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

Executes dropped EXE 2 IoCs

pid	Process
2912	Adobe.exe
584	Adobe.exe

Loads dropped DLL 1 IoCs

pid	Process
1988	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2080 set thread context of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2912 set thread context of 584	2912	Adobe.exe	32

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 4 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	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 2080 wrote to memory of 1988	2080	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	28
PID 1988 wrote to memory of 2912	1988	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	29
PID 1988 wrote to memory of 2912	1988	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	29
PID 1988 wrote to memory of 2912	1988	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	29
PID 1988 wrote to memory of 2912	1988	f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe	29
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32
PID 2912 wrote to memory of 584	2912	Adobe.exe	32

C:\Users\Admin\AppData\Local\Temp\f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
"C:\Users\Admin\AppData\Local\Temp\f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe
  "C:\Users\Admin\AppData\Local\Temp\f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\ProgramData\Adobe\Adobe.exe
    "C:\ProgramData\Adobe\Adobe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:584

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

System Information Discovery

1

T1082

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:\ProgramData\Adobe\Adobe.exe

Filesize
990KB

MD5
2108fe4bc36c181c43d01825b56d8349

SHA1
274e3b1be233129a95658fe508706c0ebc4114a5

SHA256
f36c39084b68e1c96f6d960a9def941304a3b2f93907d6650587125627baa89f

SHA512
955aa8cb40efda2b44dc3a84a849c7941f20d801abc5da35c020038603ca6718de826aaf93dcdd958a5ce1808df9b25378f72ecb39b9d0f495771b2f773fa96b

Download Submit
memory/584-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/584-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1988-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1988-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1988-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-28-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-0-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2080-6-0x0000000006000000-0x00000000060C4000-memory.dmp

Filesize
784KB

Download
memory/2080-5-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-4-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2080-3-0x0000000000810000-0x0000000000828000-memory.dmp

Filesize
96KB

Download
memory/2080-2-0x0000000074E90000-0x000000007557E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-1-0x0000000000060000-0x000000000015E000-memory.dmp

Filesize
1016KB

Download
memory/2912-29-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2912-27-0x0000000000300000-0x00000000003FE000-memory.dmp

Filesize
1016KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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