remcos | 8c3c62aafa4ff3a976150dce366c39675fdeceb96362d9071acfd37959770d66

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 05:51

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General

Target

UHUH45EDRFQ.exe
Size

1.2MB
MD5

be85e3d9a67b0170a11edb287f01aa6f
SHA1

8111cff9ec9d729f477dc77299fcbb63ec74553a
SHA256

8c3c62aafa4ff3a976150dce366c39675fdeceb96362d9071acfd37959770d66
SHA512

6bccf15b3472157d3baef8a713854c8a8706e418a66cf054d11abca52ac416e5bfa247b0b9d373fbed07c77aab149f7a0a57c2376d0e79ab5000e1ac3d258cc0
SSDEEP

12288:m8DE8GILjWLWgwJJCFGNqx+nHx1VGNfH81pectJgCcB0oi83LSrXBAtz5SEFJCyZ:LcwJJCUsGGNfKOxi87SrRqzHF/

Score

10^/10

remcos revolt execution rat

Malware Config

Extracted

Family

remcos

Botnet

REVOLT

94.156.69.93:2973

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-HKC0PV
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

Processes:

powershell.exepowershell.exe

pid process

4276 powershell.exe
3284 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:

UHUH45EDRFQ.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation UHUH45EDRFQ.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

UHUH45EDRFQ.exe

description pid process target process

PID 2004 set thread context of 1380 2004 UHUH45EDRFQ.exe UHUH45EDRFQ.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
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

Processes:

schtasks.exe

pid process

3688 schtasks.exe

pid	process
4276	powershell.exe
3284	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	UHUH45EDRFQ.exe

description	pid	process	target process
PID 2004 set thread context of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe

pid	process
3688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

UHUH45EDRFQ.exepowershell.exepowershell.exe

pid	process
2004	UHUH45EDRFQ.exe
4276	powershell.exe
4276	powershell.exe
3284	powershell.exe
3284	powershell.exe
2004	UHUH45EDRFQ.exe
2004	UHUH45EDRFQ.exe
2004	UHUH45EDRFQ.exe
2004	UHUH45EDRFQ.exe
2004	UHUH45EDRFQ.exe
3284	powershell.exe
4276	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

UHUH45EDRFQ.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2004 UHUH45EDRFQ.exe
Token: SeDebugPrivilege 4276 powershell.exe
Token: SeDebugPrivilege 3284 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

UHUH45EDRFQ.exe

pid process

1380 UHUH45EDRFQ.exe

description	pid	process
Token: SeDebugPrivilege	2004	UHUH45EDRFQ.exe
Token: SeDebugPrivilege	4276	powershell.exe
Token: SeDebugPrivilege	3284	powershell.exe

pid	process
1380	UHUH45EDRFQ.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

UHUH45EDRFQ.exe

description	pid	process	target process
PID 2004 wrote to memory of 4276	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 4276	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 4276	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 3284	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 3284	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 3284	2004	UHUH45EDRFQ.exe	powershell.exe
PID 2004 wrote to memory of 3688	2004	UHUH45EDRFQ.exe	schtasks.exe
PID 2004 wrote to memory of 3688	2004	UHUH45EDRFQ.exe	schtasks.exe
PID 2004 wrote to memory of 3688	2004	UHUH45EDRFQ.exe	schtasks.exe
PID 2004 wrote to memory of 4416	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 4416	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 4416	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 4376	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 4376	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 4376	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe
PID 2004 wrote to memory of 1380	2004	UHUH45EDRFQ.exe	UHUH45EDRFQ.exe

C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe
"C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004

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\UHUH45EDRFQ.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4276

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qxjFpV.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3284

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qxjFpV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp829D.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:3688

C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe
"C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe"
2⤵
PID:4416

C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe
"C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe"
2⤵
PID:4376

C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe
"C:\Users\Admin\AppData\Local\Temp\UHUH45EDRFQ.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1380

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
e23c12df53da6406efda476b63a7f38c

SHA1
b9f1bce5ca365ce2216496b0ad10c383dba2ba7f

SHA256
333551a9cbe0077db9596aabc88256a5875eb3aede0e71344f6646a266bd0ec3

SHA512
97299e8fd4e823ce79c3cd77a55fb5071bd0946fc177bcc60b47029f36776ae68168e8939375c5add5532fa2f97f580ab5513c712243833c440188aee44a5ff9

Download Submit
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
be65d9bf7b151a36ae3ae88ef6eac0a8

SHA1
0f26809fff0517255207e025a8a56043cc0fc186

SHA256
c2b36c8428937ab54e5e320ee1e45d4d7d8ff1089b4fc3bea22dca88f715d7e7

SHA512
d218fefe1951440fb9da576a8aa3c7c648bcbcc4815b8faec5ea889cd3da2ecdb85065c452fd04f73cda6ba0c1a2467727a1373ac5943dbf6f061abb103a805a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3rek11sc.kun.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp829D.tmp
Filesize
1KB

MD5
8cd2c844bf24cc7b0a100fdab7691596

SHA1
4a35bc5f987635bd541e9ceb52ee0b003589885b

SHA256
e600cd4f955664170484821d4dbd6953b7fcca87ee8eebb841d5fa57c7db0f9a

SHA512
37f8217a97087f01068a801b0a0e357e2b552cf935a321b9d6c82030e1f6cd9cdfa8dc6c8365c43b6f6f74bdf8795952e57d55c38459443f139e8b09393cbb0f

Download Submit
memory/1380-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-134-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1380-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-6-0x0000000005D80000-0x0000000005D90000-memory.dmp

Filesize
64KB

Download
memory/2004-2-0x0000000005E00000-0x00000000063A4000-memory.dmp

Filesize
5.6MB

Download
memory/2004-1-0x0000000000DF0000-0x0000000000F20000-memory.dmp

Filesize
1.2MB

Download
memory/2004-0-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/2004-54-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/2004-4-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/2004-5-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

Filesize
40KB

Download
memory/2004-3-0x00000000058F0000-0x0000000005982000-memory.dmp

Filesize
584KB

Download
memory/2004-9-0x0000000008A30000-0x0000000008ACC000-memory.dmp

Filesize
624KB

Download
memory/2004-8-0x0000000006790000-0x0000000006850000-memory.dmp

Filesize
768KB

Download
memory/2004-7-0x0000000005DA0000-0x0000000005DAC000-memory.dmp

Filesize
48KB

Download
memory/3284-44-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3284-80-0x000000006FD80000-0x000000006FDCC000-memory.dmp

Filesize
304KB

Download
memory/3284-39-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3284-100-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3284-34-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3284-28-0x0000000005500000-0x0000000005854000-memory.dmp

Filesize
3.3MB

Download
memory/4276-18-0x0000000005270000-0x0000000005292000-memory.dmp

Filesize
136KB

Download
memory/4276-76-0x0000000007550000-0x000000000755A000-memory.dmp

Filesize
40KB

Download
memory/4276-77-0x0000000007760000-0x00000000077F6000-memory.dmp

Filesize
600KB

Download
memory/4276-78-0x00000000076E0000-0x00000000076F1000-memory.dmp

Filesize
68KB

Download
memory/4276-79-0x0000000007710000-0x000000000771E000-memory.dmp

Filesize
56KB

Download
memory/4276-74-0x0000000007B20000-0x000000000819A000-memory.dmp

Filesize
6.5MB

Download
memory/4276-90-0x0000000007720000-0x0000000007734000-memory.dmp

Filesize
80KB

Download
memory/4276-91-0x0000000007820000-0x000000000783A000-memory.dmp

Filesize
104KB

Download
memory/4276-92-0x0000000007800000-0x0000000007808000-memory.dmp

Filesize
32KB

Download
memory/4276-95-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-75-0x00000000074E0000-0x00000000074FA000-memory.dmp

Filesize
104KB

Download
memory/4276-61-0x0000000007160000-0x0000000007192000-memory.dmp

Filesize
200KB

Download
memory/4276-72-0x0000000007140000-0x000000000715E000-memory.dmp

Filesize
120KB

Download
memory/4276-73-0x00000000071D0000-0x0000000007273000-memory.dmp

Filesize
652KB

Download
memory/4276-62-0x000000006FD80000-0x000000006FDCC000-memory.dmp

Filesize
304KB

Download
memory/4276-55-0x00000000062B0000-0x00000000062FC000-memory.dmp

Filesize
304KB

Download
memory/4276-53-0x00000000061B0000-0x00000000061CE000-memory.dmp

Filesize
120KB

Download
memory/4276-21-0x0000000005500000-0x0000000005566000-memory.dmp

Filesize
408KB

Download
memory/4276-22-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-19-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/4276-17-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-16-0x00000000056B0000-0x0000000005CD8000-memory.dmp

Filesize
6.2MB

Download
memory/4276-15-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-14-0x0000000002870000-0x00000000028A6000-memory.dmp

Filesize
216KB

Download