remcos | 8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2024, 00:48

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General

Target

8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
Size

1.2MB
MD5

de5cd5b46020115ddaa8d0dd40e00ecd
SHA1

07a858809fbd9abe831e812e816f69ed0673eb9f
SHA256

8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133
SHA512

c972c5df4afa7eb702b6dcc9fc40f59b0f19913fd29c4df65bcde03f8f7dd636ab53b41f949c436143d9d0b71313bd80679a782eb6ea439ce9021bbf0c234454
SSDEEP

24576:l+UHlvEZShCJQwUjEKvnCmT1/UjLJMq4hNhQZ8:l5vtCJYjEsTRcPJqiZ8

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

198.46.178.148:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-LAHLH8
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
Remcos family
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
3596	powershell.exe
4040	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 964 set thread context of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106

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	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.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
4448	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
3596	powershell.exe
3596	powershell.exe
4040	powershell.exe
4040	powershell.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
3596	powershell.exe
4040	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
Token: SeDebugPrivilege	4040	powershell.exe
Token: SeDebugPrivilege	3596	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 3596	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	99
PID 964 wrote to memory of 3596	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	99
PID 964 wrote to memory of 3596	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	99
PID 964 wrote to memory of 4040	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	101
PID 964 wrote to memory of 4040	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	101
PID 964 wrote to memory of 4040	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	101
PID 964 wrote to memory of 4448	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	103
PID 964 wrote to memory of 4448	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	103
PID 964 wrote to memory of 4448	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	103
PID 964 wrote to memory of 1772	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	105
PID 964 wrote to memory of 1772	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	105
PID 964 wrote to memory of 1772	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	105
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106
PID 964 wrote to memory of 2704	964	8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe	106

C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
"C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.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:964
- 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\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3596
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\joCLVqvlHdVrEJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4040
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\joCLVqvlHdVrEJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2BED.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4448
- C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
  "C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
  2⤵
  PID:1772
- C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
  "C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
e0f46da57eb06a907b87ce5dd12f0fa2

SHA1
a171b56374ca1ab4dddf97d17157e3820c687d3b

SHA256
dc9746454e3a770c43ecf751f7950b1e7710205868db7476c6ea7d8f0a12f642

SHA512
0e3641701481dec83e132ca42a4456383977693ec1121e23241f11621c005cecb0ef59a0150e81c989cd59b68b06ba8ec51c551b0c3793498966b730e64356ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0l1irs4n.s2p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2BED.tmp

Filesize
1KB

MD5
47e93cabc61e535c98e2acb62fefb4b6

SHA1
7026749bb75562a904800ef900a85c24b119d395

SHA256
7bfddb1cfa22bc4da3fe19f57df9babfeead3bc3ac1fe2082ca04ccf11737167

SHA512
388e7cd2e411bce844e662a4a91cc693b0ca95941f38ca674de7f680ce9f617ca3b46e50f4f660b355322e2134bbfb1483dd1c1e18e0a1a155999953cc713144

Download Submit
memory/964-8-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/964-5-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/964-6-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/964-7-0x00000000059D0000-0x00000000059EC000-memory.dmp

Filesize
112KB

Download
memory/964-4-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/964-9-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/964-10-0x000000000AB40000-0x000000000AC00000-memory.dmp

Filesize
768KB

Download
memory/964-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/964-51-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/964-3-0x0000000005570000-0x0000000005602000-memory.dmp

Filesize
584KB

Download
memory/964-2-0x0000000005B20000-0x00000000060C4000-memory.dmp

Filesize
5.6MB

Download
memory/964-1-0x0000000000A30000-0x0000000000B62000-memory.dmp

Filesize
1.2MB

Download
memory/2704-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3596-52-0x00000000063F0000-0x000000000640E000-memory.dmp

Filesize
120KB

Download
memory/3596-85-0x00000000079B0000-0x0000000007A46000-memory.dmp

Filesize
600KB

Download
memory/3596-53-0x0000000006520000-0x000000000656C000-memory.dmp

Filesize
304KB

Download
memory/3596-45-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/3596-35-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/3596-16-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/3596-17-0x0000000005590000-0x0000000005BB8000-memory.dmp

Filesize
6.2MB

Download
memory/3596-60-0x000000006EF30000-0x000000006EF7C000-memory.dmp

Filesize
304KB

Download
memory/3596-70-0x00000000069D0000-0x00000000069EE000-memory.dmp

Filesize
120KB

Download
memory/3596-59-0x00000000073C0000-0x00000000073F2000-memory.dmp

Filesize
200KB

Download
memory/3596-71-0x0000000007400000-0x00000000074A3000-memory.dmp

Filesize
652KB

Download
memory/3596-98-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/3596-82-0x0000000007D80000-0x00000000083FA000-memory.dmp

Filesize
6.5MB

Download
memory/3596-83-0x0000000007730000-0x000000000774A000-memory.dmp

Filesize
104KB

Download
memory/3596-90-0x0000000007A50000-0x0000000007A58000-memory.dmp

Filesize
32KB

Download
memory/3596-30-0x0000000005C30000-0x0000000005F84000-memory.dmp

Filesize
3.3MB

Download
memory/3596-86-0x0000000007930000-0x0000000007941000-memory.dmp

Filesize
68KB

Download
memory/3596-88-0x0000000007970000-0x0000000007984000-memory.dmp

Filesize
80KB

Download
memory/4040-87-0x0000000007DE0000-0x0000000007DEE000-memory.dmp

Filesize
56KB

Download
memory/4040-89-0x0000000007EF0000-0x0000000007F0A000-memory.dmp

Filesize
104KB

Download
memory/4040-84-0x0000000007C20000-0x0000000007C2A000-memory.dmp

Filesize
40KB

Download
memory/4040-22-0x0000000005B00000-0x0000000005B66000-memory.dmp

Filesize
408KB

Download
memory/4040-20-0x00000000057C0000-0x00000000057E2000-memory.dmp

Filesize
136KB

Download
memory/4040-97-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/4040-72-0x000000006EF30000-0x000000006EF7C000-memory.dmp

Filesize
304KB

Download
memory/4040-21-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/4040-18-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/4040-29-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/4040-34-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/4040-15-0x0000000002F10000-0x0000000002F46000-memory.dmp

Filesize
216KB

Download