remcos | ec8b5d134fb3669c59733a303ef5a03bb6cc5a02602bce545d4fedda93ea4962

General

Target

BL-TLN0124796CMACGM.scr
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

C2

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
2880	powershell.exe
2692	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 2472	2700	BL-TLN0124796CMACGM.scr	36

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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BL-TLN0124796CMACGM.scr
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

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
3008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2700	BL-TLN0124796CMACGM.scr
2700	BL-TLN0124796CMACGM.scr
2692	powershell.exe
2880	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2700	BL-TLN0124796CMACGM.scr
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	2880	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2472	BL-TLN0124796CMACGM.scr

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2880	2700	BL-TLN0124796CMACGM.scr	30
PID 2700 wrote to memory of 2880	2700	BL-TLN0124796CMACGM.scr	30
PID 2700 wrote to memory of 2880	2700	BL-TLN0124796CMACGM.scr	30
PID 2700 wrote to memory of 2880	2700	BL-TLN0124796CMACGM.scr	30
PID 2700 wrote to memory of 2692	2700	BL-TLN0124796CMACGM.scr	32
PID 2700 wrote to memory of 2692	2700	BL-TLN0124796CMACGM.scr	32
PID 2700 wrote to memory of 2692	2700	BL-TLN0124796CMACGM.scr	32
PID 2700 wrote to memory of 2692	2700	BL-TLN0124796CMACGM.scr	32
PID 2700 wrote to memory of 3008	2700	BL-TLN0124796CMACGM.scr	34
PID 2700 wrote to memory of 3008	2700	BL-TLN0124796CMACGM.scr	34
PID 2700 wrote to memory of 3008	2700	BL-TLN0124796CMACGM.scr	34
PID 2700 wrote to memory of 3008	2700	BL-TLN0124796CMACGM.scr	34
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36
PID 2700 wrote to memory of 2472	2700	BL-TLN0124796CMACGM.scr	36

C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700
- 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"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- 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:2692
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7B77.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3008
- C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
  "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
f8a5e5f0b5dbd1ce9b800fd81e819fc7

SHA1
b22947de2eba2e239d5fce3d9963931172f4f7d8

SHA256
a8a9b59d566cc96cae136a3dd0f2f1fe60a4aa724f9f794c3f9d5c79791d7cc4

SHA512
776367f692352abe6f0ac80c078bef9e19ba83895eddd4c9c0e3c43499f1d681b2dfa0fcb9fd171d3f1acf9e6e4fbbe367237e84e9cbb3beb1f0fbe08809f120

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7B77.tmp

Filesize
1KB

MD5
367e4ec3bcfbf1bdf3b27169610fe5b8

SHA1
757fca91ceb705e783e62b91c8a7a8a64ee93c83

SHA256
fc53e6f46b60f8404e4ef30f795d62f83055197f2f4a7769c6692af538018a92

SHA512
a24b94f757469d12d18107ab3dc3423ba85edfbbc0793e201ee2a2a77f3aa4fdf5d026769842c8fe388d0dbfe605ff219377008e4ae0fc413d903a79bbd6fccd

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

Filesize
7KB

MD5
5fbaa8fff519072ad124dbf4b5e27ce7

SHA1
b42af674777d74543aaf15ab30fcc8e70134926e

SHA256
e5581c848bc5eb236c42429abb135ee2534a768addd66935458430b5b6ae2b38

SHA512
67b0443a426c644d4693cccbee4a78534e71370e41c28810bde26eb4de07a6131b0f1effb93cfa4531bd01e069e6348f1cd35a78bd514ac7c13bd8172f7e3768

Download Submit
memory/2472-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2472-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2472-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2700-42-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2700-1-0x0000000000ED0000-0x0000000000FBA000-memory.dmp

Filesize
936KB

Download
memory/2700-4-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2700-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2700-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/2700-2-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2700-6-0x0000000005470000-0x0000000005530000-memory.dmp

Filesize
768KB

Download
memory/2700-5-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads