remcos | e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13

Analysis

max time kernel
143s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-07-2024 04:02

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General

Target

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
Size

1.8MB
MD5

8feedebaa3a0e66b40787ad171c8a9a2
SHA1

59cf58564a0beb92fb86e9b1ffd1569580d5b63c
SHA256

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13
SHA512

7e137e01656f5045e7d3ba4a12eebb37147491fc404de4710b477a75805cae57efe38037f9c1b74307305ccb971fcdf086360ca6d1d5b175db406b6c3853d9eb
SSDEEP

24576:XD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYFEQB:Xp7E+QrFUBgq2G

Score

10^/10

remcos host persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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
Executes dropped EXE 2 IoCs

Processes:

sbietrcl.exesbietrcl.exe

pid process

2632 sbietrcl.exe
2596 sbietrcl.exe
Loads dropped DLL 1 IoCs

Processes:

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe

pid process

3016 e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2632	sbietrcl.exe
2596	sbietrcl.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

sbietrcl.exe

description pid process target process

PID 2632 set thread context of 2596 2632 sbietrcl.exe sbietrcl.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2632 set thread context of 2596	2632	sbietrcl.exe	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exesbietrcl.exe

pid	process
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
2632	sbietrcl.exe
2632	sbietrcl.exe
2632	sbietrcl.exe
2632	sbietrcl.exe
2632	sbietrcl.exe
2632	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exesbietrcl.exe

description pid process

Token: SeDebugPrivilege 3016 e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
Token: SeDebugPrivilege 2632 sbietrcl.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sbietrcl.exe

pid process

2596 sbietrcl.exe

description	pid	process
Token: SeDebugPrivilege	3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
Token: SeDebugPrivilege	2632	sbietrcl.exe

pid	process
2596	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exesbietrcl.exe

description	pid	process	target process
PID 3016 wrote to memory of 2632	3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe	sbietrcl.exe
PID 3016 wrote to memory of 2632	3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe	sbietrcl.exe
PID 3016 wrote to memory of 2632	3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe	sbietrcl.exe
PID 3016 wrote to memory of 2632	3016	e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe
PID 2632 wrote to memory of 2596	2632	sbietrcl.exe	sbietrcl.exe

C:\Users\Admin\AppData\Local\Temp\e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe
"C:\Users\Admin\AppData\Local\Temp\e577d8d262b59c0ae162505b5a4a7af49879e51f7e22b9584042516184da4c13.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2632

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2596

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
20551e4120650b56e2e353f6e255b143

SHA1
7d1e36c9ed01e3b84a7ba6e0de074cd8bcb44f9e

SHA256
86ca793217214254318e197f39491bb0e4d65e3b0dbbb28cc5ce627417c67587

SHA512
d231ec884d5e8efcddb1528f5e589ac9848fdec876e3d3df15acb70c24e3059aae9adc7d632f074e6331fd7de631abcdf219f61217a33e5bb1fe40d31a99340e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab4911.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
Filesize
1.8MB

MD5
6fc6458eed6516c92427b7b77db2fb8e

SHA1
584b58c93032fb9c227a512e581c72893ed23ea1

SHA256
994dd3e132176686d2fde926a6938d52b20f83bf1b2be5c6b48e3bdfe8049ca3

SHA512
9fdf2c8814b160d0502140480e7154d73944c13090d396ed0962621dbf6df05f45f0dfcd8669a068827c436b491a76ff3e04a34f29b0726f1f634f9f30ebda40

Download Submit
memory/2596-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-69-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2596-54-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-33-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2632-43-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2632-42-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2632-32-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2632-60-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3016-31-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3016-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/3016-13-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3016-12-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3016-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/3016-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download