remcos | 5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 19:11

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General

Target

HUD34EDRFQ253.exe
Size

998KB
MD5

9a942028f55f59560c38677923c7ce6a
SHA1

069cf2b7306f61ac65a4598f519a83dd535325c9
SHA256

5755305654c07b239c370661598bc698f8113b41fe5785e0e13098a66cdbd4eb
SHA512

e3f0f2d9d97cfa7178d3fd1e12cd35c9b1a5b08e92767389bcf998e428e08e4527fa7b9204941e849a6f28c240c52c57b653777e7620210c5d024dbce0a22eda
SSDEEP

24576:yxWTl+NDnZjbBxcxyGFKjL8kFzzjBh3HrYMY:lpknZHEyGw3t3cz

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

194.147.140.180:1987

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-FRNTO2
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

HUD34EDRFQ253.exe

description pid process target process

PID 2196 set thread context of 2692 2196 HUD34EDRFQ253.exe HUD34EDRFQ253.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

2532 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

HUD34EDRFQ253.exepowershell.exepowershell.exe

pid process

2196 HUD34EDRFQ253.exe
2196 HUD34EDRFQ253.exe
2792 powershell.exe
2684 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

HUD34EDRFQ253.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2196 HUD34EDRFQ253.exe
Token: SeDebugPrivilege 2792 powershell.exe
Token: SeDebugPrivilege 2684 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

HUD34EDRFQ253.exe

pid process

2692 HUD34EDRFQ253.exe

description	pid	process	target process
PID 2196 set thread context of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe

pid	process
2532	schtasks.exe

pid	process
2196	HUD34EDRFQ253.exe
2196	HUD34EDRFQ253.exe
2792	powershell.exe
2684	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2196	HUD34EDRFQ253.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	2684	powershell.exe

pid	process
2692	HUD34EDRFQ253.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

HUD34EDRFQ253.exe

description	pid	process	target process
PID 2196 wrote to memory of 2684	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2684	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2684	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2684	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2792	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2792	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2792	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2792	2196	HUD34EDRFQ253.exe	powershell.exe
PID 2196 wrote to memory of 2532	2196	HUD34EDRFQ253.exe	schtasks.exe
PID 2196 wrote to memory of 2532	2196	HUD34EDRFQ253.exe	schtasks.exe
PID 2196 wrote to memory of 2532	2196	HUD34EDRFQ253.exe	schtasks.exe
PID 2196 wrote to memory of 2532	2196	HUD34EDRFQ253.exe	schtasks.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe
PID 2196 wrote to memory of 2692	2196	HUD34EDRFQ253.exe	HUD34EDRFQ253.exe

C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
"C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196

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\HUD34EDRFQ253.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XPTpFDOlta.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2792

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XPTpFDOlta" /XML "C:\Users\Admin\AppData\Local\Temp\tmp753F.tmp"
2⤵
- Creates scheduled task(s)
PID:2532

C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe
"C:\Users\Admin\AppData\Local\Temp\HUD34EDRFQ253.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
c97e052fa6f9d88df2e0e5cc898330a6

SHA1
4fae70536f2f2d5e5234e4278d3b071d9f0a4db6

SHA256
3d0feebad974df89a29c7973912062bc7c51a523ff1c2ba04278c1632cd2e14c

SHA512
ea519c2402dd89498d88f80337d68686ec9c739b59c568f87ea19cd04e9baf888347bab0e283fc91272f10a083bc70ca2f6e8253b1dd128f736effe92521607c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp753F.tmp

Filesize
1KB

MD5
83851635ee08188b3f0420d6d591f4e4

SHA1
eb0a8faf737323834190b164742f2f13cd9dc34d

SHA256
dfa16844f9290cfbc771c94e73e47bdf01f623e01362b893d680bce569d02faf

SHA512
1e1604d67e82375599680040c4f86236fdbed00b2f71037190b263801152475bd382c1acec275508b18e8825b7dc8f2cf34a7a172edd96d99f0f200db862e42a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
bfda54c33d5a1128b3d39878a44b97ab

SHA1
b4a4268f3625e1332cb18a37c78fd4dcb165a76e

SHA256
ef01840a2192e8908d67edc165e9deef82989cca053e26740994bc4d1335e3e3

SHA512
d9917c5e55043e80050f3156e4c59426d9aabd98849fb2f9909ddd0da433e0592a41508f58416f52e5385e9c07bc7b8e5f56c970ce7d7e00521e60b74e702c06

Download Submit
memory/2196-3-0x0000000000490000-0x00000000004A2000-memory.dmp

Filesize
72KB

Download
memory/2196-4-0x00000000006C0000-0x00000000006CC000-memory.dmp

Filesize
48KB

Download
memory/2196-5-0x00000000053A0000-0x0000000005460000-memory.dmp

Filesize
768KB

Download
memory/2196-36-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download
memory/2196-2-0x00000000006E0000-0x0000000000720000-memory.dmp

Filesize
256KB

Download
memory/2196-0-0x0000000000CE0000-0x0000000000DE0000-memory.dmp

Filesize
1024KB

Download
memory/2196-1-0x0000000074200000-0x00000000748EE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-49-0x000000006F090000-0x000000006F63B000-memory.dmp

Filesize
5.7MB

Download
memory/2684-47-0x00000000024F0000-0x0000000002530000-memory.dmp

Filesize
256KB

Download
memory/2684-46-0x00000000024F0000-0x0000000002530000-memory.dmp

Filesize
256KB

Download
memory/2684-45-0x00000000024F0000-0x0000000002530000-memory.dmp

Filesize
256KB

Download
memory/2684-43-0x000000006F090000-0x000000006F63B000-memory.dmp

Filesize
5.7MB

Download
memory/2692-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2692-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2792-50-0x000000006F090000-0x000000006F63B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-48-0x0000000000570000-0x00000000005B0000-memory.dmp

Filesize
256KB

Download
memory/2792-44-0x000000006F090000-0x000000006F63B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-42-0x000000006F090000-0x000000006F63B000-memory.dmp

Filesize
5.7MB

Download