remcos | b8b9c2bfe75178cec0d3b26b863bd451bf0233171332cb08e79bb6113a5b42d2

General

Target

RH00986545678.exe
Size

300KB
MD5

1c35a30c13de88ca3f69ef12c0d89262
SHA1

608e1885ac8504394543b9d6224a4a88a4eb6b02
SHA256

b8b9c2bfe75178cec0d3b26b863bd451bf0233171332cb08e79bb6113a5b42d2
SHA512

27f292775ec47a8b69adcef4f4aa812ca32ad1a281860f240f2d2d17973a02178351606770e182baca7605e007332d087912c956d30ad39e9726df7b45e58475
SSDEEP

6144:8Idki46oScBWfI7GRxL/kIp1kO+jQ54mqjomjTBuEVD:8Idb465cBojEOTim6omvBu

Score

10^/10

remcos host rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

208.67.107.123:8787

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_lrqrjhqsyqtzudh
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2748	2100	RH00986545678.exe	32

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2868	2748	WerFault.exe	32

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2224	Powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2224	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2748	RH00986545678.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2224	2100	RH00986545678.exe	30
PID 2100 wrote to memory of 2224	2100	RH00986545678.exe	30
PID 2100 wrote to memory of 2224	2100	RH00986545678.exe	30
PID 2100 wrote to memory of 2224	2100	RH00986545678.exe	30
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2100 wrote to memory of 2748	2100	RH00986545678.exe	32
PID 2748 wrote to memory of 2868	2748	RH00986545678.exe	33
PID 2748 wrote to memory of 2868	2748	RH00986545678.exe	33
PID 2748 wrote to memory of 2868	2748	RH00986545678.exe	33
PID 2748 wrote to memory of 2868	2748	RH00986545678.exe	33

C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe
"C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe
  "C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 448
    3⤵
    - Program crash
    PID:2868

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2100-55-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2100-54-0x00000000000B0000-0x0000000000102000-memory.dmp

Filesize
328KB

Download
memory/2100-56-0x00000000004C0000-0x00000000004F6000-memory.dmp

Filesize
216KB

Download
memory/2100-57-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/2100-62-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/2100-74-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2224-60-0x0000000070640000-0x0000000070BEB000-memory.dmp

Filesize
5.7MB

Download
memory/2224-61-0x0000000070640000-0x0000000070BEB000-memory.dmp

Filesize
5.7MB

Download
memory/2224-87-0x0000000070640000-0x0000000070BEB000-memory.dmp

Filesize
5.7MB

Download
memory/2224-81-0x00000000026C0000-0x0000000002700000-memory.dmp

Filesize
256KB

Download
memory/2224-76-0x00000000026C0000-0x0000000002700000-memory.dmp

Filesize
256KB

Download
memory/2748-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-80-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-72-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-75-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-78-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-68-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-82-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-83-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-84-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-85-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2748-88-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

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