remcos | 1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-09-2024 16:47

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General

Target

0988986.exe
Size

897KB
MD5

00cb16ec61346dc7a4410acbb683a6f2
SHA1

d4c2741a51aef320c23e66221741bdbfbda9ddea
SHA256

1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4
SHA512

e33736dcb7e553bfdfc708c948413630496befdc9fc4bf5a83e42cea93ea400624379aeca984636b066c7d2377a524ce00112215c68a9dd6b4bdd9aba845ed9d
SSDEEP

24576:qgEceydzP4Nj+x/SZ/Jk9R9Hq9AfQaz/smsNqGxDeI:qVkjmK9R9K9Af7sN3

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
4632	powershell.exe
3312	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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	0988986.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 3940	1304	0988986.exe	92

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	0988986.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0988986.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
2264	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3312	powershell.exe
4632	powershell.exe
4632	powershell.exe
3312	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	powershell.exe
Token: SeDebugPrivilege	3312	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3940	0988986.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 4632	1304	0988986.exe	86
PID 1304 wrote to memory of 4632	1304	0988986.exe	86
PID 1304 wrote to memory of 4632	1304	0988986.exe	86
PID 1304 wrote to memory of 3312	1304	0988986.exe	88
PID 1304 wrote to memory of 3312	1304	0988986.exe	88
PID 1304 wrote to memory of 3312	1304	0988986.exe	88
PID 1304 wrote to memory of 2264	1304	0988986.exe	90
PID 1304 wrote to memory of 2264	1304	0988986.exe	90
PID 1304 wrote to memory of 2264	1304	0988986.exe	90
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92
PID 1304 wrote to memory of 3940	1304	0988986.exe	92

C:\Users\Admin\AppData\Local\Temp\0988986.exe
"C:\Users\Admin\AppData\Local\Temp\0988986.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1304
- 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\0988986.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jcXOqLBJLRu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3312
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcXOqLBJLRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA21C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2264
- C:\Users\Admin\AppData\Local\Temp\0988986.exe
  "C:\Users\Admin\AppData\Local\Temp\0988986.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3940

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
2df52bde82f6dd9f4aa3ededbb91a002

SHA1
a32389d441e21cab9bfb1ffe68bcba0770bfabcb

SHA256
b32c117a5157cee6020391c051b3c20e4b4dd7868802de246889583e98040677

SHA512
103dfa95a50454cabff9c59b846435bbf6f87a17844893f4e09f9a53f1b3625818ff9f18a8bf2b58ff06a32699d25765fd1579e8c7f8a457fae3282cd8f3fc95

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
05a62f6d166fcb392283fb9c0d70fdff

SHA1
12c524ebbec38555dce46c2ad1a5de5947beef9a

SHA256
2f1b0e8862d60d3f42773660b2a22cf63cbdac266061887edef8307477e4f674

SHA512
260d3ae14efac12e487810a5a3ddb08afc3720190605fd1fc6a9eaac49a92fea3a664fb40a460ebece92ea767f89bf0a8bf5058cd47df6b05fe4cbd4dac99f84

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_34dvk1bh.uw1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA21C.tmp

Filesize
1KB

MD5
39309afdd34adcced719464e78971af4

SHA1
17567b5316412cd1ac615146f069757f6d8c2383

SHA256
250e86f5def4b16fb0bf335a05b5dceaca913fed59a24f6d2a8207c9b73d94df

SHA512
752bf1d30a0938f15cf2da31818202e8aa0497f53493500422117832761d9e9abef2f927b4510a52938c727a2885ae11ccb4238bad09f5d3b1c17a607ef85303

Download Submit
memory/1304-4-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/1304-5-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/1304-6-0x0000000005520000-0x0000000005532000-memory.dmp

Filesize
72KB

Download
memory/1304-7-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/1304-8-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/1304-9-0x0000000008D70000-0x0000000008E30000-memory.dmp

Filesize
768KB

Download
memory/1304-10-0x000000000B620000-0x000000000B6BC000-memory.dmp

Filesize
624KB

Download
memory/1304-3-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/1304-2-0x0000000005530000-0x0000000005AD4000-memory.dmp

Filesize
5.6MB

Download
memory/1304-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/1304-53-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/1304-1-0x00000000004D0000-0x00000000005B6000-memory.dmp

Filesize
920KB

Download
memory/3312-92-0x0000000007A10000-0x0000000007A1E000-memory.dmp

Filesize
56KB

Download
memory/3312-69-0x0000000075960000-0x00000000759AC000-memory.dmp

Filesize
304KB

Download
memory/3312-21-0x0000000005480000-0x00000000054A2000-memory.dmp

Filesize
136KB

Download
memory/3312-23-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/3312-24-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/3312-101-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/3312-27-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/3312-19-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/3312-95-0x0000000007B00000-0x0000000007B08000-memory.dmp

Filesize
32KB

Download
memory/3312-94-0x0000000007B20000-0x0000000007B3A000-memory.dmp

Filesize
104KB

Download
memory/3312-18-0x0000000005690000-0x0000000005CB8000-memory.dmp

Filesize
6.2MB

Download
memory/3312-90-0x0000000007A60000-0x0000000007AF6000-memory.dmp

Filesize
600KB

Download
memory/3312-86-0x00000000076E0000-0x0000000007783000-memory.dmp

Filesize
652KB

Download
memory/3312-25-0x0000000005EC0000-0x0000000006214000-memory.dmp

Filesize
3.3MB

Download
memory/3312-22-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/3940-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-132-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3940-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4632-91-0x0000000007D80000-0x0000000007D91000-memory.dmp

Filesize
68KB

Download
memory/4632-93-0x0000000007DC0000-0x0000000007DD4000-memory.dmp

Filesize
80KB

Download
memory/4632-55-0x0000000006C40000-0x0000000006C8C000-memory.dmp

Filesize
304KB

Download
memory/4632-16-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/4632-100-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/4632-26-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/4632-15-0x0000000002F40000-0x0000000002F76000-memory.dmp

Filesize
216KB

Download
memory/4632-17-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/4632-89-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

Filesize
40KB

Download
memory/4632-87-0x00000000081C0000-0x000000000883A000-memory.dmp

Filesize
6.5MB

Download
memory/4632-88-0x0000000007B80000-0x0000000007B9A000-memory.dmp

Filesize
104KB

Download
memory/4632-79-0x0000000006E10000-0x0000000006E2E000-memory.dmp

Filesize
120KB

Download
memory/4632-54-0x0000000006860000-0x000000000687E000-memory.dmp

Filesize
120KB

Download
memory/4632-62-0x0000000007810000-0x0000000007842000-memory.dmp

Filesize
200KB

Download
memory/4632-63-0x0000000075960000-0x00000000759AC000-memory.dmp

Filesize
304KB

Download