remcos | 561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 01:46

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General

Target
561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Size 911KB
Sample240724-b7a4hs1dnn
SHA256 561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4
MD5 c46b5bbde20c2f8fca90033833d0f0ab
SHA1 6d93647b604755b9bbe25a77f22aca1c967023f1
SHA512 0fc64241b8f77e6f959fdc6857064ca2e4dc3221c2831779bc4945ee3280e7a87eb7a59275b36bd78646e26a23d312cbd6f6ba9f6203374c941469b532567b0b
SSDEEP 24576:MYCMVvhb8mhSi7022Veg3b4X6oRLodriOp9O:tpVvxhoagQ/Lodri8O
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
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-OTOIRK
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe

Executes dropped EXE 5 IoCs

pid	Process
2812	Adobe.exe
4288	Adobe.exe
2156	Adobe.exe
404	Adobe.exe
4060	Adobe.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-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2812 set thread context of 4060	2812	Adobe.exe	100

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	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
2812	Adobe.exe
2812	Adobe.exe
2812	Adobe.exe
2812	Adobe.exe
2812	Adobe.exe
2812	Adobe.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
Token: SeDebugPrivilege	2812	Adobe.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 3916	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	94
PID 2756 wrote to memory of 3916	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	94
PID 2756 wrote to memory of 3916	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	94
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 2756 wrote to memory of 3044	2756	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	95
PID 3044 wrote to memory of 2812	3044	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	96
PID 3044 wrote to memory of 2812	3044	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	96
PID 3044 wrote to memory of 2812	3044	561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe	96
PID 2812 wrote to memory of 4288	2812	Adobe.exe	97
PID 2812 wrote to memory of 4288	2812	Adobe.exe	97
PID 2812 wrote to memory of 4288	2812	Adobe.exe	97
PID 2812 wrote to memory of 2156	2812	Adobe.exe	98
PID 2812 wrote to memory of 2156	2812	Adobe.exe	98
PID 2812 wrote to memory of 2156	2812	Adobe.exe	98
PID 2812 wrote to memory of 404	2812	Adobe.exe	99
PID 2812 wrote to memory of 404	2812	Adobe.exe	99
PID 2812 wrote to memory of 404	2812	Adobe.exe	99
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100
PID 2812 wrote to memory of 4060	2812	Adobe.exe	100

C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
"C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
  "C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe"
  2⤵
  PID:3916
- C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe
  "C:\Users\Admin\AppData\Local\Temp\561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3044
- - 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 behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      PID:4288
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      PID:2156
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      PID:404
  - - 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:4060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Adobe.exe

Path C:\ProgramData\Adobe\Adobe.exe
Size 911KB
SHA256 561070b0ac5bfae16de4f01cbfc6fbf6b40d3afd5413de4c2abf8c844e7e9fe4
MD5 c46b5bbde20c2f8fca90033833d0f0ab
SHA1 6d93647b604755b9bbe25a77f22aca1c967023f1
SHA512 0fc64241b8f77e6f959fdc6857064ca2e4dc3221c2831779bc4945ee3280e7a87eb7a59275b36bd78646e26a23d312cbd6f6ba9f6203374c941469b532567b0b
SSDEEP 24576:MYCMVvhb8mhSi7022Veg3b4X6oRLodriOp9O:tpVvxhoagQ/Lodri8O
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2756-8-0x0000000006450000-0x000000000645A000-memory.dmp

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memory/2756-10-0x00000000064C0000-0x0000000006580000-memory.dmp

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memory/2756-3-0x0000000005050000-0x00000000050E2000-memory.dmp

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memory/2756-4-0x0000000075280000-0x0000000075A30000-memory.dmp

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memory/2756-5-0x0000000005110000-0x000000000511A000-memory.dmp

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memory/2756-6-0x0000000006370000-0x0000000006450000-memory.dmp

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memory/2756-7-0x0000000005500000-0x0000000005514000-memory.dmp

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memory/2756-0-0x000000007528E000-0x000000007528F000-memory.dmp

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memory/2756-2-0x0000000005550000-0x0000000005AF4000-memory.dmp

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memory/2756-11-0x0000000008F20000-0x0000000008FBC000-memory.dmp

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memory/2756-9-0x0000000006460000-0x000000000646E000-memory.dmp

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memory/2756-1-0x0000000000580000-0x0000000000668000-memory.dmp

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memory/2756-18-0x0000000075280000-0x0000000075A30000-memory.dmp

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memory/2812-31-0x0000000074BA0000-0x0000000075350000-memory.dmp

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memory/2812-30-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

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memory/2812-32-0x0000000005600000-0x0000000005614000-memory.dmp

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memory/2812-42-0x0000000074BA0000-0x0000000075350000-memory.dmp

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memory/3044-29-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3044-12-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3044-15-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3044-13-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3044-17-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-44-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-39-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-43-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-41-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-45-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-46-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-47-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-48-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-49-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-50-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-51-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4060-52-0x0000000000400000-0x0000000000482000-memory.dmp

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