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 884 set thread context of 3032	884	RH00986545678.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4532	3032	WerFault.exe	83

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4052	Powershell.exe
4052	Powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4052	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3032	RH00986545678.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 4052	884	RH00986545678.exe	81
PID 884 wrote to memory of 4052	884	RH00986545678.exe	81
PID 884 wrote to memory of 4052	884	RH00986545678.exe	81
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83
PID 884 wrote to memory of 3032	884	RH00986545678.exe	83

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:884
- 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:4052
- C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe
  "C:\Users\Admin\AppData\Local\Temp\RH00986545678.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3032
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 848
    3⤵
    - Program crash
    PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3032 -ip 3032
1⤵
PID:452

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_52jkv4c1.qrl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/884-134-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/884-135-0x0000000005490000-0x0000000005A34000-memory.dmp

Filesize
5.6MB

Download
memory/884-136-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/884-137-0x0000000004F80000-0x000000000501C000-memory.dmp

Filesize
624KB

Download
memory/884-138-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

Filesize
64KB

Download
memory/884-162-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/884-133-0x0000000000340000-0x0000000000392000-memory.dmp

Filesize
328KB

Download
memory/3032-169-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-168-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-143-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-165-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-164-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-147-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-155-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-170-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3032-163-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4052-140-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4052-157-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/4052-148-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/4052-145-0x0000000004DA0000-0x0000000004DC2000-memory.dmp

Filesize
136KB

Download
memory/4052-167-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

Filesize
120KB

Download
memory/4052-142-0x0000000004E20000-0x0000000005448000-memory.dmp

Filesize
6.2MB

Download
memory/4052-141-0x00000000047A0000-0x00000000047B0000-memory.dmp

Filesize
64KB

Download
memory/4052-139-0x00000000047B0000-0x00000000047E6000-memory.dmp

Filesize
216KB

Download
memory/4052-176-0x0000000006330000-0x00000000063C6000-memory.dmp

Filesize
600KB

Download
memory/4052-177-0x00000000062B0000-0x00000000062CA000-memory.dmp

Filesize
104KB

Download
memory/4052-178-0x0000000006D80000-0x0000000006DA2000-memory.dmp

Filesize
136KB

Download
memory/4052-182-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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