remcos | a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 05:05

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General

Target

a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe
Size

2.2MB
MD5

6c3b88c4675ff6cad62702925a3390f1
SHA1

d7c0fdc2b3b92df96b5bcd7a390aa7312df086a5
SHA256

a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a
SHA512

ee611d1b240a25a02d8ea9ecca3deb943da34dfcb03a38c2e5d8b40a2cea60d4d4446f968b4af6dc6c9f21bd951b3023e16939ebd1fe0a3fd0867f6a0d143e4a
SSDEEP

49152:qB1BRf3rOSzOzrFNj8e1KbWF8K7Vk3SZTH4OWOEkw/R8jDYWg16pb67Wy/Zz:aaRrFCI4v7p

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

103.198.26.25:96

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-IPUJM4
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 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3636	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4996 set thread context of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87

System Location Discovery: System Language Discovery 1 TTPs 1 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	msbuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3636	powershell.exe
3636	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3636	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 3636	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	85
PID 4996 wrote to memory of 3636	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	85
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87
PID 4996 wrote to memory of 5016	4996	a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe	87

C:\Users\Admin\AppData\Local\Temp\a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe
"C:\Users\Admin\AppData\Local\Temp\a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath $env:UserProfile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3636
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mbazh4k3.inr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3636-0-0x00007FFBBB483000-0x00007FFBBB485000-memory.dmp

Filesize
8KB

Download
memory/3636-4-0x0000021735D10000-0x0000021735D32000-memory.dmp

Filesize
136KB

Download
memory/3636-11-0x00007FFBBB480000-0x00007FFBBBF41000-memory.dmp

Filesize
10.8MB

Download
memory/3636-12-0x00007FFBBB480000-0x00007FFBBBF41000-memory.dmp

Filesize
10.8MB

Download
memory/3636-18-0x00007FFBBB480000-0x00007FFBBBF41000-memory.dmp

Filesize
10.8MB

Download
memory/5016-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5016-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download