remcos | d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a

Analysis

max time kernel
148s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-09-2024 14:04

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General

Target

BL-TLN0124796CMACGM.scr.exe
Size

915KB
MD5

02d513fa3a4c04f1ffce97c25caccdff
SHA1

853948f7ff1d69a293c4f4617185c24b9859e6dd
SHA256

d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
SHA512

9a9b925e7d5acec5216ecb64f7352a8a27598106452984f08155f2bef640fe1ad93ff3a7869cacfaec2514641740c41fcc0e7e4f0172eaa7072c1c9c05087ab3
SSDEEP

24576:SgW2J4Sl29MaW6EEJJQEtTShtxMwwW7yUVzmoeli:SgjJYSoxtuDxZlyUVzmo

Score

10^/10

remcos generalwire-slaves discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

GeneralWire-Slaves

milliondollar23.duckdns.org:3984

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-TWU43D
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2640	powershell.exe
2056	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34

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 5 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	BL-TLN0124796CMACGM.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BL-TLN0124796CMACGM.scr.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2184	BL-TLN0124796CMACGM.scr.exe
2184	BL-TLN0124796CMACGM.scr.exe
2640	powershell.exe
2056	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2184	BL-TLN0124796CMACGM.scr.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2056	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2488	BL-TLN0124796CMACGM.scr.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2640	2184	BL-TLN0124796CMACGM.scr.exe	28
PID 2184 wrote to memory of 2640	2184	BL-TLN0124796CMACGM.scr.exe	28
PID 2184 wrote to memory of 2640	2184	BL-TLN0124796CMACGM.scr.exe	28
PID 2184 wrote to memory of 2640	2184	BL-TLN0124796CMACGM.scr.exe	28
PID 2184 wrote to memory of 2056	2184	BL-TLN0124796CMACGM.scr.exe	30
PID 2184 wrote to memory of 2056	2184	BL-TLN0124796CMACGM.scr.exe	30
PID 2184 wrote to memory of 2056	2184	BL-TLN0124796CMACGM.scr.exe	30
PID 2184 wrote to memory of 2056	2184	BL-TLN0124796CMACGM.scr.exe	30
PID 2184 wrote to memory of 2884	2184	BL-TLN0124796CMACGM.scr.exe	31
PID 2184 wrote to memory of 2884	2184	BL-TLN0124796CMACGM.scr.exe	31
PID 2184 wrote to memory of 2884	2184	BL-TLN0124796CMACGM.scr.exe	31
PID 2184 wrote to memory of 2884	2184	BL-TLN0124796CMACGM.scr.exe	31
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34
PID 2184 wrote to memory of 2488	2184	BL-TLN0124796CMACGM.scr.exe	34

C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe
"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2640
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2056
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B2F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

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

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
c6777f968cd8a2e26a227fafd15c263e

SHA1
02e9c1c424048d4d8fad3662759eeceb8256612d

SHA256
026e7df2db481c2656141daf883f403cdf95c6f107a9881d1a6e8a135fb4daaa

SHA512
81f9ddeac78b0133b24c8c658492adb83a7e04860b69710c24f12c811822c237cdcd321125c38af9f7bb09c8c31e5f42c2e5777fa0142a6f0efdfbc35a02e863

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8B2F.tmp

Filesize
1KB

MD5
22a2d6ac0485fdea4f4e68c1edc6f8a7

SHA1
d5710e38cfba84ccf45082f2ee8dcb27fddc664e

SHA256
34bfaa1c7e59063368c798ebd58a2a3b7f5013e466d3bb31d31d7224dd22b652

SHA512
7c02342835dc72f5a28d56f0b6c0e348e6fede15b308037f1b14cacac3278d18b24425f5ea16e6e36bfbc0d06915561a5b40dfc0d8243d2356c92a8ae714ac6b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
fb232940d59ba4e5f6fe719904238e2d

SHA1
100c263ae84847d26e302eecc23652405d46dcc1

SHA256
6d6f6ec4f009321ec3e3dc8b7d260182506119ce1ed2f5d95ace0eeb6167fa06

SHA512
1d7606b7107a662a9541c01450088d82bb41a78e9e623119a5e7f577bc993d037913c14d49388bd726f8e597a74258ef5e194313d748978bf4b4e32dd6ecb771

Download Submit
memory/2184-0-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/2184-1-0x0000000000EA0000-0x0000000000F8A000-memory.dmp

Filesize
936KB

Download
memory/2184-2-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2184-3-0x0000000000550000-0x0000000000562000-memory.dmp

Filesize
72KB

Download
memory/2184-4-0x00000000741CE000-0x00000000741CF000-memory.dmp

Filesize
4KB

Download
memory/2184-5-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2184-6-0x0000000005530000-0x00000000055F0000-memory.dmp

Filesize
768KB

Download
memory/2184-40-0x00000000741C0000-0x00000000748AE000-memory.dmp

Filesize
6.9MB

Download
memory/2488-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2488-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2488-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download