remcos | d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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
956	powershell.exe
3948	powershell.exe

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	BL-TLN0124796CMACGM.scr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2288 set thread context of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95

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

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
2568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2288	BL-TLN0124796CMACGM.scr.exe
3948	powershell.exe
956	powershell.exe
3948	powershell.exe
956	powershell.exe
2288	BL-TLN0124796CMACGM.scr.exe
2288	BL-TLN0124796CMACGM.scr.exe
2288	BL-TLN0124796CMACGM.scr.exe
2288	BL-TLN0124796CMACGM.scr.exe
2288	BL-TLN0124796CMACGM.scr.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	BL-TLN0124796CMACGM.scr.exe
Token: SeDebugPrivilege	3948	powershell.exe
Token: SeDebugPrivilege	956	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1272	BL-TLN0124796CMACGM.scr.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 956	2288	BL-TLN0124796CMACGM.scr.exe	86
PID 2288 wrote to memory of 956	2288	BL-TLN0124796CMACGM.scr.exe	86
PID 2288 wrote to memory of 956	2288	BL-TLN0124796CMACGM.scr.exe	86
PID 2288 wrote to memory of 3948	2288	BL-TLN0124796CMACGM.scr.exe	88
PID 2288 wrote to memory of 3948	2288	BL-TLN0124796CMACGM.scr.exe	88
PID 2288 wrote to memory of 3948	2288	BL-TLN0124796CMACGM.scr.exe	88
PID 2288 wrote to memory of 2568	2288	BL-TLN0124796CMACGM.scr.exe	90
PID 2288 wrote to memory of 2568	2288	BL-TLN0124796CMACGM.scr.exe	90
PID 2288 wrote to memory of 2568	2288	BL-TLN0124796CMACGM.scr.exe	90
PID 2288 wrote to memory of 1056	2288	BL-TLN0124796CMACGM.scr.exe	93
PID 2288 wrote to memory of 1056	2288	BL-TLN0124796CMACGM.scr.exe	93
PID 2288 wrote to memory of 1056	2288	BL-TLN0124796CMACGM.scr.exe	93
PID 2288 wrote to memory of 3300	2288	BL-TLN0124796CMACGM.scr.exe	94
PID 2288 wrote to memory of 3300	2288	BL-TLN0124796CMACGM.scr.exe	94
PID 2288 wrote to memory of 3300	2288	BL-TLN0124796CMACGM.scr.exe	94
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95
PID 2288 wrote to memory of 1272	2288	BL-TLN0124796CMACGM.scr.exe	95

C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe
"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2288
- 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:956
- 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:3948
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA91.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2568
- C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
  2⤵
  PID:1056
- C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"
  2⤵
  PID:3300
- 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:1272

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

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

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
7ecf94a51e23f7aa2ac3488832020937

SHA1
167833557d8889c4e690653fccce2e51d1c1e93f

SHA256
92320d66ce1015ae1eef5f8db6af15a8ad2f74476ec0bd6051b289c0fe14d495

SHA512
d48922d4a394ae97e515559039ae54518f494dfc028ee8f6b022fab1e5d0f86fcd7078e5b22e2a92f91910127fbecb3f48ad694cf04ba71a50793ce233fe9f46

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qalbtuun.nrb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDA91.tmp

Filesize
1KB

MD5
b9a11e760efcfb73821db0dc33736a25

SHA1
3f8e8bd0d2d5542200aa79f4f0f7d70f744eb9a4

SHA256
7eb53d5e0f5843dfb7d3b8c99e03d2265f9a29016d41ba2dc7d633d448a7f6a6

SHA512
ad52375ee7ca5956a695a153679328bff1b4af7d9396262b9a79de54836071698b0832ca24f41685ce51af0d2ea51ed8e91eb58882456e6c83eedee5aaf1ffb1

Download Submit
memory/956-61-0x000000006F730000-0x000000006F77C000-memory.dmp

Filesize
304KB

Download
memory/956-16-0x0000000005160000-0x0000000005788000-memory.dmp

Filesize
6.2MB

Download
memory/956-89-0x00000000072A0000-0x00000000072B1000-memory.dmp

Filesize
68KB

Download
memory/956-88-0x0000000007320000-0x00000000073B6000-memory.dmp

Filesize
600KB

Download
memory/956-84-0x00000000076F0000-0x0000000007D6A000-memory.dmp

Filesize
6.5MB

Download
memory/956-72-0x0000000006F50000-0x0000000006FF3000-memory.dmp

Filesize
652KB

Download
memory/956-60-0x0000000006F00000-0x0000000006F32000-memory.dmp

Filesize
200KB

Download
memory/956-93-0x00000000073C0000-0x00000000073C8000-memory.dmp

Filesize
32KB

Download
memory/956-15-0x0000000002460000-0x0000000002496000-memory.dmp

Filesize
216KB

Download
memory/956-90-0x00000000072D0000-0x00000000072DE000-memory.dmp

Filesize
56KB

Download
memory/956-17-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/956-18-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/956-19-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/956-71-0x0000000006EE0000-0x0000000006EFE000-memory.dmp

Filesize
120KB

Download
memory/956-96-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/956-47-0x0000000005E20000-0x0000000005E6C000-memory.dmp

Filesize
304KB

Download
memory/956-46-0x0000000005D80000-0x0000000005D9E000-memory.dmp

Filesize
120KB

Download
memory/1272-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-132-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-121-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1272-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2288-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/2288-55-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/2288-6-0x0000000006EF0000-0x0000000006F02000-memory.dmp

Filesize
72KB

Download
memory/2288-5-0x0000000005580000-0x000000000558A000-memory.dmp

Filesize
40KB

Download
memory/2288-4-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/2288-10-0x0000000009A70000-0x0000000009B0C000-memory.dmp

Filesize
624KB

Download
memory/2288-9-0x0000000007390000-0x0000000007450000-memory.dmp

Filesize
768KB

Download
memory/2288-3-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/2288-8-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/2288-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/2288-1-0x0000000000AE0000-0x0000000000BCA000-memory.dmp

Filesize
936KB

Download
memory/2288-7-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/3948-34-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3948-73-0x000000006F730000-0x000000006F77C000-memory.dmp

Filesize
304KB

Download
memory/3948-97-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3948-92-0x0000000007990000-0x00000000079AA000-memory.dmp

Filesize
104KB

Download
memory/3948-91-0x0000000007890000-0x00000000078A4000-memory.dmp

Filesize
80KB

Download
memory/3948-22-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/3948-83-0x0000000007650000-0x000000000766A000-memory.dmp

Filesize
104KB

Download
memory/3948-87-0x00000000076C0000-0x00000000076CA000-memory.dmp

Filesize
40KB

Download
memory/3948-29-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3948-33-0x0000000005E00000-0x0000000006154000-memory.dmp

Filesize
3.3MB

Download
memory/3948-21-0x0000000005410000-0x0000000005476000-memory.dmp

Filesize
408KB

Download
memory/3948-35-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/3948-20-0x0000000005370000-0x0000000005392000-memory.dmp

Filesize
136KB

Download