remcos | bc3e38148839e72cc594c795183adb3ba9664be94be03fb254e7c9232553077f

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-06-2023 13:14

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

744KB
MD5

447766638aad4f1a4e04568524e27e90
SHA1

8bfdd143a996a7db7abd6a00e634d6d04d115a1e
SHA256

bc3e38148839e72cc594c795183adb3ba9664be94be03fb254e7c9232553077f
SHA512

38e5abc10e894242ae98ee20dc6e3bf4cfd65bb8a4a9f6e78e2289db1c1614b180cf7471dee6fe09e8c3d725eb4aca09543ca1c41ac94070e38749b38330008a
SSDEEP

12288:hrRQSMl6m5YfhamfW47jScSJmvlPuFsuMGNO8BHZnRM+ErWbVdVKEdFa:h9zMl6mmfUmLqcSJmTKOuHHM+Erkpa

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:2080

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-6IHMTY
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
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:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation file.exe
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

1344 svchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
1344	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

file.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	file.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 1344 set thread context of 228 1344 svchost.exe AddInProcess32.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
T1053

Processes:

schtasks.exe

pid process

3596 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3204 timeout.exe

description	pid	process	target process
PID 1344 set thread context of 228	1344	svchost.exe	AddInProcess32.exe

pid	process
3596	schtasks.exe

pid	process
3204	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

file.exe

pid	process
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe
4644	file.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

file.exesvchost.exe

description pid process

Token: SeDebugPrivilege 4644 file.exe
Token: SeDebugPrivilege 1344 svchost.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AddInProcess32.exe

pid process

228 AddInProcess32.exe

description	pid	process
Token: SeDebugPrivilege	4644	file.exe
Token: SeDebugPrivilege	1344	svchost.exe

pid	process
228	AddInProcess32.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

file.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 4644 wrote to memory of 1508	4644	file.exe	cmd.exe
PID 4644 wrote to memory of 1508	4644	file.exe	cmd.exe
PID 4644 wrote to memory of 2144	4644	file.exe	cmd.exe
PID 4644 wrote to memory of 2144	4644	file.exe	cmd.exe
PID 1508 wrote to memory of 3596	1508	cmd.exe	schtasks.exe
PID 1508 wrote to memory of 3596	1508	cmd.exe	schtasks.exe
PID 2144 wrote to memory of 3204	2144	cmd.exe	timeout.exe
PID 2144 wrote to memory of 3204	2144	cmd.exe	timeout.exe
PID 2144 wrote to memory of 1344	2144	cmd.exe	svchost.exe
PID 2144 wrote to memory of 1344	2144	cmd.exe	svchost.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe
PID 1344 wrote to memory of 228	1344	svchost.exe	AddInProcess32.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4644

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:3596

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9E77.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3204

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1344

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe"
4⤵
- Suspicious use of SetWindowsHookEx
PID:228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
faa6b59d9c2345daaf2e0cfbbc88ef2f

SHA1
a75545f6b54f116f960c7b1fd70022e3284516e6

SHA256
4cabf0f11904c0b3361af139f0e6a3401aa9542d8294909a8ec015505642d75f

SHA512
66db8328ad28d8d99a037890c11abbabd6e1d4f922c82f6dfcc32a6998452c4244e489bf4da4c644d74bea6fb45ecec161319a27eddf6412d7c075e44ff514e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9E77.tmp.bat
Filesize
151B

MD5
7b9e6de4176157557f2b07c5dc4c77ed

SHA1
a9d2b2c959dd6d2eb3f020a468797a1a055b2143

SHA256
03b779ed9f88f52f729b064d007d99a137215fbea4c18a188d125bca009cf74f

SHA512
02a987d189b0aecbd4933649298b9c236d722ba60a9c9d9fe1a9e3c04dc5c58bbf7bfb2f2e1dfaf8e6060e02ea8ea07edae850a0dc1efe696ba5b684c23c768a

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
744KB

MD5
447766638aad4f1a4e04568524e27e90

SHA1
8bfdd143a996a7db7abd6a00e634d6d04d115a1e

SHA256
bc3e38148839e72cc594c795183adb3ba9664be94be03fb254e7c9232553077f

SHA512
38e5abc10e894242ae98ee20dc6e3bf4cfd65bb8a4a9f6e78e2289db1c1614b180cf7471dee6fe09e8c3d725eb4aca09543ca1c41ac94070e38749b38330008a

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
744KB

MD5
447766638aad4f1a4e04568524e27e90

SHA1
8bfdd143a996a7db7abd6a00e634d6d04d115a1e

SHA256
bc3e38148839e72cc594c795183adb3ba9664be94be03fb254e7c9232553077f

SHA512
38e5abc10e894242ae98ee20dc6e3bf4cfd65bb8a4a9f6e78e2289db1c1614b180cf7471dee6fe09e8c3d725eb4aca09543ca1c41ac94070e38749b38330008a

Download Submit
memory/228-143-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-145-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-146-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-147-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-149-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-150-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-151-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-152-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-153-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-154-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-156-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-157-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-158-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-159-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-161-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-162-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-163-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-164-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-166-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-167-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-168-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-170-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-171-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-172-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-173-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-175-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-176-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-177-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-179-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-180-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-181-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-183-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-184-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-185-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-186-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-188-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-189-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-190-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-192-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-193-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-194-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-196-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-197-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-198-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-200-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-201-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-202-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-204-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-205-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-206-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-207-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-209-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-210-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-211-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-213-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-214-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-215-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-217-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-218-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-219-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-220-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-222-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-223-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-224-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/228-226-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4644-133-0x0000020018680000-0x000002001873E000-memory.dmp

Filesize
760KB

Download
memory/4644-134-0x0000020018AC0000-0x0000020018AD0000-memory.dmp

Filesize
64KB

Download