remcos | 58b6cc9bef7c86291ce7c27353e925b340504b0c112c312a7c7c7ff885bc1c1a

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 18:45

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General

Target

7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
Size

924KB
MD5

8fd5f061761645838e92744a0722f87d
SHA1

565a31f86b886a26cc8c10ce3780a256e4157f55
SHA256

7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9
SHA512

8d67b4408e987f2cf6fcd938058b2179bb36a703990c52b7a1cfc6058a4b568d7785a321782a0c2107091a1622e3f57e04a6109f851471e7f7064bda7b007122
SSDEEP

24576:K9o/NseOLSe+/1k38m8IyfhFTG7KQTCaAhkqG72:K2JarEZytpMGq

Score

10^/10

remcos mekus discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

mekus

dpm-sael.com:2017

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
meckus-ODY51K
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
3276	powershell.exe
1336	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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1216 set thread context of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91

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	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	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.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
3312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3276	powershell.exe
1336	powershell.exe
3276	powershell.exe
1336	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3276	powershell.exe
Token: SeDebugPrivilege	1336	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4072	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3276	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	85
PID 1216 wrote to memory of 3276	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	85
PID 1216 wrote to memory of 3276	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	85
PID 1216 wrote to memory of 1336	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	87
PID 1216 wrote to memory of 1336	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	87
PID 1216 wrote to memory of 1336	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	87
PID 1216 wrote to memory of 3312	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	89
PID 1216 wrote to memory of 3312	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	89
PID 1216 wrote to memory of 3312	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	89
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91
PID 1216 wrote to memory of 4072	1216	7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe	91

C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
"C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1216
- 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\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3276
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pNamqURus.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1336
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNamqURus" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F37.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3312
- C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
  "C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4072

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
c5c5e42579f75c5cd42cf334026c5358

SHA1
825dc4889caedee9e7612b1e3826a89cc282c03b

SHA256
3286893bd4663dc0d7c6c53e3e5c046aa09c44c9f8c23358c4c4d83360bbb53f

SHA512
6d3e3beb659c15340c01a2fbdfc34a029568e9211be5a2b1b35fb1ae5d7f7550e1ac33bd62280616f26caffc09bcb8961267d4aff6ee460cc4a5983f715826a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sos4rbmi.o2c.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3F37.tmp

Filesize
1KB

MD5
c998955567f25df2b79a72823c5ed970

SHA1
bcf97e18b106095a73c2bda6a047c2ece61bcfc3

SHA256
843c594c88b82f6bbc186f20e1a90dcc61a6f6f0cb0388d82da09be2ec56a1b3

SHA512
65ecba1f9dbf3def09d19a482e5028e65d19640512fe1878cd0d5b7952abee0dfa9e7b1a7b1b64825a465cb0cb1cec405ae59698b9c796552a3da298e52d742f

Download Submit
memory/1216-6-0x0000000006E10000-0x0000000006E20000-memory.dmp

Filesize
64KB

Download
memory/1216-4-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1216-5-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/1216-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/1216-7-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/1216-8-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1216-9-0x0000000006FA0000-0x0000000007060000-memory.dmp

Filesize
768KB

Download
memory/1216-10-0x00000000095A0000-0x000000000963C000-memory.dmp

Filesize
624KB

Download
memory/1216-2-0x0000000005DF0000-0x0000000006394000-memory.dmp

Filesize
5.6MB

Download
memory/1216-50-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1216-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/1216-1-0x0000000000D00000-0x0000000000DEC000-memory.dmp

Filesize
944KB

Download
memory/1336-96-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1336-23-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1336-85-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

Download
memory/1336-73-0x0000000007420000-0x000000000743E000-memory.dmp

Filesize
120KB

Download
memory/1336-84-0x0000000007680000-0x0000000007723000-memory.dmp

Filesize
652KB

Download
memory/1336-19-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1336-87-0x0000000007820000-0x000000000782A000-memory.dmp

Filesize
40KB

Download
memory/1336-63-0x000000006F320000-0x000000006F36C000-memory.dmp

Filesize
304KB

Download
memory/1336-62-0x0000000007440000-0x0000000007472000-memory.dmp

Filesize
200KB

Download
memory/1336-45-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1336-93-0x0000000007AD0000-0x0000000007AD8000-memory.dmp

Filesize
32KB

Download
memory/3276-49-0x0000000006510000-0x000000000652E000-memory.dmp

Filesize
120KB

Download
memory/3276-97-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3276-15-0x0000000004F90000-0x0000000004FC6000-memory.dmp

Filesize
216KB

Download
memory/3276-16-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3276-51-0x0000000006A60000-0x0000000006AAC000-memory.dmp

Filesize
304KB

Download
memory/3276-18-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3276-92-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

Filesize
104KB

Download
memory/3276-91-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

Filesize
80KB

Download
memory/3276-90-0x0000000007AA0000-0x0000000007AAE000-memory.dmp

Filesize
56KB

Download
memory/3276-89-0x0000000007A70000-0x0000000007A81000-memory.dmp

Filesize
68KB

Download
memory/3276-88-0x0000000007AF0000-0x0000000007B86000-memory.dmp

Filesize
600KB

Download
memory/3276-44-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3276-33-0x0000000005F70000-0x00000000062C4000-memory.dmp

Filesize
3.3MB

Download
memory/3276-74-0x000000006F320000-0x000000006F36C000-memory.dmp

Filesize
304KB

Download
memory/3276-20-0x0000000005570000-0x0000000005592000-memory.dmp

Filesize
136KB

Download
memory/3276-21-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/3276-86-0x0000000007EB0000-0x000000000852A000-memory.dmp

Filesize
6.5MB

Download
memory/3276-22-0x0000000005E00000-0x0000000005E66000-memory.dmp

Filesize
408KB

Download
memory/3276-17-0x00000000056E0000-0x0000000005D08000-memory.dmp

Filesize
6.2MB

Download
memory/4072-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4072-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download