remcos | 4e1899294fcd9043ed50cb9f02a7085b4c243deb30e3c2d5bdaeac2569fe0e6e

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
27-05-2024 12:14

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General

Target

SKM-2752024.exe
Size

1004KB
MD5

1f8592e9abe87ea5cc2f6c302e100819
SHA1

96efd40a135165d2acd001b94260ca7f8eeb798a
SHA256

4e1899294fcd9043ed50cb9f02a7085b4c243deb30e3c2d5bdaeac2569fe0e6e
SHA512

776783358d007dfae30d46a1518caeef3a5972e053ba3b475c6c55ba3fd9edf3c41e601286f3483df9fc4da94a4522da529d70cd1a4127d6270aa0c03d850779
SSDEEP

24576:Ahyf9ZdV4g0lR9xR6q2Bu5lC/CjZBTFa/+O:AhylZsg0vk5kY8ZBTFa2O

Score

10^/10

remcos 76364 execution rat

Malware Config

Extracted

Family

remcos

Botnet

76364

103.150.8.12:5689

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-FF0K7G
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

392 powershell.exe

pid	process
392	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

Processes:

SKM-2752024.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	SKM-2752024.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SKM-2752024.exe

description pid process target process

PID 2180 set thread context of 1520 2180 SKM-2752024.exe SKM-2752024.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

1908 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

392 powershell.exe
392 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 392 powershell.exe

description	pid	process	target process
PID 2180 set thread context of 1520	2180	SKM-2752024.exe	SKM-2752024.exe

pid	process
1908	schtasks.exe

pid	process
392	powershell.exe
392	powershell.exe

description	pid	process
Token: SeDebugPrivilege	392	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

SKM-2752024.exe

description	pid	process	target process
PID 2180 wrote to memory of 392	2180	SKM-2752024.exe	powershell.exe
PID 2180 wrote to memory of 392	2180	SKM-2752024.exe	powershell.exe
PID 2180 wrote to memory of 392	2180	SKM-2752024.exe	powershell.exe
PID 2180 wrote to memory of 1908	2180	SKM-2752024.exe	schtasks.exe
PID 2180 wrote to memory of 1908	2180	SKM-2752024.exe	schtasks.exe
PID 2180 wrote to memory of 1908	2180	SKM-2752024.exe	schtasks.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe
PID 2180 wrote to memory of 1520	2180	SKM-2752024.exe	SKM-2752024.exe

C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe
"C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TqcSXSH.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:392

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TqcSXSH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp83D6.tmp"
2⤵
- Creates scheduled task(s)
PID:1908

C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe
"C:\Users\Admin\AppData\Local\Temp\SKM-2752024.exe"
2⤵
PID:1520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zngv1pik.1tj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp83D6.tmp

Filesize
1KB

MD5
00485ae176cfa92df761fd5f338131a9

SHA1
4628019ff83921c3ab9fff44ab0a0c1c13940975

SHA256
a61530acfa778a3afe9f6456b6c77a97d91d37479420d22ba5fcdce24849a65c

SHA512
60ba7e2b6b43e9740f95bae42d652c2fe8f20eb7c66bfb3d398477fc4764bc68be86a5293f5632426b6afb947a417726addd71c06a58898887ecdb704ba68d64

Download Submit
memory/392-40-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

Filesize
120KB

Download
memory/392-64-0x0000000007550000-0x00000000075E6000-memory.dmp

Filesize
600KB

Download
memory/392-72-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/392-42-0x00000000060C0000-0x000000000610C000-memory.dmp

Filesize
304KB

Download
memory/392-69-0x00000000075F0000-0x00000000075F8000-memory.dmp

Filesize
32KB

Download
memory/392-68-0x0000000007610000-0x000000000762A000-memory.dmp

Filesize
104KB

Download
memory/392-67-0x0000000007510000-0x0000000007524000-memory.dmp

Filesize
80KB

Download
memory/392-66-0x0000000007500000-0x000000000750E000-memory.dmp

Filesize
56KB

Download
memory/392-65-0x00000000074D0000-0x00000000074E1000-memory.dmp

Filesize
68KB

Download
memory/392-15-0x0000000004A30000-0x0000000004A66000-memory.dmp

Filesize
216KB

Download
memory/392-16-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/392-63-0x0000000007340000-0x000000000734A000-memory.dmp

Filesize
40KB

Download
memory/392-17-0x00000000050A0000-0x00000000056C8000-memory.dmp

Filesize
6.2MB

Download
memory/392-21-0x0000000005930000-0x0000000005996000-memory.dmp

Filesize
408KB

Download
memory/392-22-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/392-62-0x00000000072D0000-0x00000000072EA000-memory.dmp

Filesize
104KB

Download
memory/392-26-0x00000000059A0000-0x0000000005CF4000-memory.dmp

Filesize
3.3MB

Download
memory/392-61-0x0000000007920000-0x0000000007F9A000-memory.dmp

Filesize
6.5MB

Download
memory/392-60-0x00000000071C0000-0x0000000007263000-memory.dmp

Filesize
652KB

Download
memory/392-59-0x0000000006540000-0x000000000655E000-memory.dmp

Filesize
120KB

Download
memory/392-49-0x000000006F0A0000-0x000000006F0EC000-memory.dmp

Filesize
304KB

Download
memory/392-48-0x0000000007180000-0x00000000071B2000-memory.dmp

Filesize
200KB

Download
memory/392-20-0x00000000058C0000-0x0000000005926000-memory.dmp

Filesize
408KB

Download
memory/392-19-0x0000000005720000-0x0000000005742000-memory.dmp

Filesize
136KB

Download
memory/1520-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1520-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2180-41-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2180-7-0x0000000005550000-0x000000000555C000-memory.dmp

Filesize
48KB

Download
memory/2180-8-0x0000000005560000-0x0000000005570000-memory.dmp

Filesize
64KB

Download
memory/2180-4-0x00000000051D0000-0x00000000051DA000-memory.dmp

Filesize
40KB

Download
memory/2180-0-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/2180-3-0x0000000005100000-0x0000000005192000-memory.dmp

Filesize
584KB

Download
memory/2180-9-0x0000000006510000-0x00000000065CE000-memory.dmp

Filesize
760KB

Download
memory/2180-1-0x0000000000620000-0x000000000071E000-memory.dmp

Filesize
1016KB

Download
memory/2180-10-0x0000000008B40000-0x0000000008BDC000-memory.dmp

Filesize
624KB

Download
memory/2180-6-0x0000000005510000-0x0000000005526000-memory.dmp

Filesize
88KB

Download
memory/2180-5-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/2180-2-0x00000000055B0000-0x0000000005B54000-memory.dmp

Filesize
5.6MB

Download