remcos | 7b89d9d21df0727b96a4a4945b65c9ac3235460d10729a00b8ed90b0bac38993

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 06:09

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General

Target

24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
Size

634KB
MD5

c6a4ede79f469aeff5fae4e54199db5c
SHA1

a9951de52f36b4e95a010df44779b41ec743ed9e
SHA256

24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3
SHA512

66eec5bfda77b6de587a4c06074d5d15f6de0fd766d6d0f892838a040d4585a55e21c1831b72a378640bca939415cb70569d9e6929b0b282eca49b16b43c6f1c
SSDEEP

12288:iF4zKbnV6sNxDNo/L7dAjP6aqki2kU2hjjxlIszHnCi/jT4bC:ipnV9e/wP6a/i2kbPHN7Tz

Score

10^/10

remcos awa discovery rat

Malware Config

Extracted

Family

remcos

Botnet

awa

gdyhjjdhbvxgsfe.gotdns.ch:2718

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-J6C5A7
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
Remcos family
remcos

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3120 set thread context of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4844	Powershell.exe
4844	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
Token: SeDebugPrivilege	4844	Powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4932	RegSvcs.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4932	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4932	RegSvcs.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3120 wrote to memory of 4844	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	99
PID 3120 wrote to memory of 4844	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	99
PID 3120 wrote to memory of 4844	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	99
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101
PID 3120 wrote to memory of 4932	3120	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	101

C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
"C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4844
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:4932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
228B

MD5
212ce15fa21392ac689bb4ebd6c6e59b

SHA1
20380dc68ad12ce99ea4f439d9584d4ec4ec38c9

SHA256
1c7be6532777fb7e66f5ac1d100b575c75c6d4f7c468fe0b4e02c80664c0bd8b

SHA512
725daa1431164be161fe63c5bee264e14d670ebc574c156e9ee36a1c71b17e13204b805ccfac13f6c510cd4e412c20336f8e0e8b1bec0de23db26de687ef7b54

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qaoa41hv.xex.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3120-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/3120-20-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-17-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-5-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/3120-6-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3120-7-0x0000000005420000-0x000000000543C000-memory.dmp

Filesize
112KB

Download
memory/3120-13-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-29-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-2-0x0000000008150000-0x00000000081EC000-memory.dmp

Filesize
624KB

Download
memory/3120-8-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-4-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3120-3-0x00000000087A0000-0x0000000008D44000-memory.dmp

Filesize
5.6MB

Download
memory/3120-1-0x0000000000FB0000-0x0000000001052000-memory.dmp

Filesize
648KB

Download
memory/3120-39-0x0000000005460000-0x0000000005461000-memory.dmp

Filesize
4KB

Download
memory/3120-9-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-11-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-15-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-31-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-27-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-25-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-23-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-21-0x0000000005420000-0x0000000005435000-memory.dmp

Filesize
84KB

Download
memory/3120-42-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4844-44-0x0000000005930000-0x0000000005996000-memory.dmp

Filesize
408KB

Download
memory/4844-63-0x0000000006FE0000-0x0000000007076000-memory.dmp

Filesize
600KB

Download
memory/4844-32-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4844-35-0x00000000026C0000-0x00000000026F6000-memory.dmp

Filesize
216KB

Download
memory/4844-69-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4844-43-0x0000000004F00000-0x0000000004F22000-memory.dmp

Filesize
136KB

Download
memory/4844-41-0x0000000005300000-0x0000000005928000-memory.dmp

Filesize
6.2MB

Download
memory/4844-45-0x00000000059A0000-0x0000000005A06000-memory.dmp

Filesize
408KB

Download
memory/4844-40-0x0000000004CC0000-0x0000000004CD0000-memory.dmp

Filesize
64KB

Download
memory/4844-65-0x00000000064F0000-0x0000000006512000-memory.dmp

Filesize
136KB

Download
memory/4844-56-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/4844-64-0x00000000064A0000-0x00000000064BA000-memory.dmp

Filesize
104KB

Download
memory/4844-62-0x0000000006010000-0x000000000605C000-memory.dmp

Filesize
304KB

Download
memory/4844-61-0x0000000005FD0000-0x0000000005FEE000-memory.dmp

Filesize
120KB

Download
memory/4932-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4932-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download